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\n  \n 2022\n \n \n (3)\n \n \n
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\n \n\n \n \n \n \n \n \n Differences by Origin in Methylome Suggest Eco‐phenotypes in the Kelp Saccharina latissima .\n \n \n \n \n\n\n \n Scheschonk, L.; Bischof, K.; Kopp, M.; and Jueterbock, A.\n\n\n \n\n\n\n Evolutionary Applications, (March): 1-17. 2022.\n \n\n\n\n
\n\n\n\n \n \n \"Paper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@article{\n title = { Differences by Origin in Methylome Suggest Eco‐phenotypes in the Kelp Saccharina latissima },\n type = {article},\n year = {2022},\n keywords = {aquaculture,bodø,faculty of biosciences and,genomics and ecology research,groups,nord university,norway},\n pages = {1-17},\n id = {7e6273a5-6e81-346e-b796-9bc641aae421},\n created = {2022-05-22T19:25:54.643Z},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2022-08-01T07:19:30.410Z},\n read = {true},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Scheschonk2022},\n folder_uuids = {0fb5a67a-6627-4c5b-95fa-1f6ecc9d8721},\n private_publication = {false},\n bibtype = {article},\n author = {Scheschonk, L and Bischof, K and Kopp, MEL and Jueterbock, A},\n doi = {10.1111/eva.13382},\n journal = {Evolutionary Applications},\n number = {March}\n}
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\n \n\n \n \n \n \n \n Prediction of the dynamic distribution for Eucheuma denticulatum (Rhodophyta, Solieriaceae) under climate change in the Indo-Pacific Ocean.\n \n \n \n\n\n \n Du, Y.; Zhang, J.; Jueterbock, A.; and Duan, D.\n\n\n \n\n\n\n Marine environmental research, 180: 105730. 2022.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@article{\n title = {Prediction of the dynamic distribution for Eucheuma denticulatum (Rhodophyta, Solieriaceae) under climate change in the Indo-Pacific Ocean},\n type = {article},\n year = {2022},\n keywords = {Eucheuma denticulatum,Global warming,Maximum entropy model,Range shift,Suitable habitat},\n pages = {105730},\n volume = {180},\n id = {fec3b153-1bd1-342c-90c2-4003dff5d1be},\n created = {2022-10-24T11:49:36.446Z},\n file_attached = {false},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2022-10-24T11:49:36.446Z},\n read = {false},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Du2022},\n private_publication = {false},\n abstract = {Eucheuma is one of the most important commercial red seaweeds in Southeast Asia, and plays an important role in the global seaweed aquaculture. It is expected to exhibit great responses to ocean warming. Here, we used maximum entropy species distribution models (SDMs) to estimate the suitable habitat of Eucheuma denticulatum under present conditions, and to predict the future range dynamics under the four representative concentration pathway (RCP) scenarios. The best marine environmental factors for E. denticulatum distribution modeling were distance to shore, sea surface temperature and currents velocity. Our results showed that E. denticulatum' distributions would contract in the Central Indo-Pacific Ocean, especially the regions of the Sunda Shelf, while expanding poleward along the south coast of Australia in 2100. Our study provided important knowledge for the prediction of the tropical seaweed distribution, conservation and sustainable developments of E. denticulatum in the future.},\n bibtype = {article},\n author = {Du, Yuqun and Zhang, Jie and Jueterbock, Alexander and Duan, Delin},\n doi = {10.1016/j.marenvres.2022.105730},\n journal = {Marine environmental research}\n}
\n
\n\n\n
\n Eucheuma is one of the most important commercial red seaweeds in Southeast Asia, and plays an important role in the global seaweed aquaculture. It is expected to exhibit great responses to ocean warming. Here, we used maximum entropy species distribution models (SDMs) to estimate the suitable habitat of Eucheuma denticulatum under present conditions, and to predict the future range dynamics under the four representative concentration pathway (RCP) scenarios. The best marine environmental factors for E. denticulatum distribution modeling were distance to shore, sea surface temperature and currents velocity. Our results showed that E. denticulatum' distributions would contract in the Central Indo-Pacific Ocean, especially the regions of the Sunda Shelf, while expanding poleward along the south coast of Australia in 2100. Our study provided important knowledge for the prediction of the tropical seaweed distribution, conservation and sustainable developments of E. denticulatum in the future.\n
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\n \n\n \n \n \n \n \n The invasive alga Gracilaria vermiculophylla in the native northwest Pacific under ocean warming: Southern genetic consequence and northern range expansion.\n \n \n \n\n\n \n Liu, Y.; Zhong, K.; Jueterbock, A.; Satoshi, S.; Choi, H.; Weinberger, F.; Assis, J.; and Hu, Z.\n\n\n \n\n\n\n Frontiers in Marine Science, 9. 2022.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
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@article{\n title = {The invasive alga Gracilaria vermiculophylla in the native northwest Pacific under ocean warming: Southern genetic consequence and northern range expansion},\n type = {article},\n year = {2022},\n volume = {9},\n id = {d6d56836-8c94-3600-8929-4a8e75a62c38},\n created = {2022-10-24T11:49:36.458Z},\n file_attached = {false},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2022-10-24T11:49:36.458Z},\n read = {false},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Liu2022},\n private_publication = {false},\n abstract = { Ocean warming is one of the most important factors in shaping the spatial distribution and genetic biodiversity of marine organisms worldwide. The northwest Pacific has been broadly illustrated as an essential seaweed diversity hotspot. However, few studies have yet investigated in this region on whether and how past and ongoing climate warming impacted the distribution and genetic pools of coastal seaweeds. Here, we chose the invasive species Gracilaria vermiculophylla as a model, and identified multiple genetic lineages in the native range through genome-scale microsatellite genotyping. Subsequently, by reconstructing decadal trends of sea surface temperature (SST) change between 1978 and 2018, we found that SST in northern Japan and the East China Sea indeed increased broadly by 0.25-0.4°C/decade. The projections of species distribution models (SDMs) under different future climate change scenarios (RCP 2.6, RCP 4.5, RCP 6.0 and RCP 8.5) indicated that a unique genetic pool of G. vermiculophylla at its current southern range limit (i.e. the South China Sea) is at high risk of disappearance, and that the populations at its current northern range limit (i.e. in Hokkaido region) will undergo poleward expansions, particularly by the year 2100. Such responses, along with this species’ limited dispersal potential, may considerably alter the contemporary distribution and genetic composition of G. vermiculophylla in the northwest Pacific, and ultimately threaten ecological services provided by this habitat-forming species and other associated functional roles. },\n bibtype = {article},\n author = {Liu, Yi-Jia and Zhong, Kai-Le and Jueterbock, Alexander and Satoshi, Shimada and Choi, Han-Gil and Weinberger, Florian and Assis, Jorge and Hu, Zi-Min},\n doi = {10.3389/fmars.2022.983685},\n journal = {Frontiers in Marine Science}\n}
\n
\n\n\n
\n Ocean warming is one of the most important factors in shaping the spatial distribution and genetic biodiversity of marine organisms worldwide. The northwest Pacific has been broadly illustrated as an essential seaweed diversity hotspot. However, few studies have yet investigated in this region on whether and how past and ongoing climate warming impacted the distribution and genetic pools of coastal seaweeds. Here, we chose the invasive species Gracilaria vermiculophylla as a model, and identified multiple genetic lineages in the native range through genome-scale microsatellite genotyping. Subsequently, by reconstructing decadal trends of sea surface temperature (SST) change between 1978 and 2018, we found that SST in northern Japan and the East China Sea indeed increased broadly by 0.25-0.4°C/decade. The projections of species distribution models (SDMs) under different future climate change scenarios (RCP 2.6, RCP 4.5, RCP 6.0 and RCP 8.5) indicated that a unique genetic pool of G. vermiculophylla at its current southern range limit (i.e. the South China Sea) is at high risk of disappearance, and that the populations at its current northern range limit (i.e. in Hokkaido region) will undergo poleward expansions, particularly by the year 2100. Such responses, along with this species’ limited dispersal potential, may considerably alter the contemporary distribution and genetic composition of G. vermiculophylla in the northwest Pacific, and ultimately threaten ecological services provided by this habitat-forming species and other associated functional roles. \n
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\n  \n 2021\n \n \n (6)\n \n \n
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\n \n\n \n \n \n \n \n \n Priming of Marine Macrophytes for Enhanced Restoration Success and Food Security in Future Oceans.\n \n \n \n \n\n\n \n Jueterbock, A.; Minne, A., J., P.; Cock, J., M.; Coleman, M., A.; Wernberg, T.; Scheschonk, L.; Rautenberger, R.; Zhang, J.; and Hu, Z.\n\n\n \n\n\n\n Frontiers in Marine Science, 8(March): 279. 2021.\n \n\n\n\n
\n\n\n\n \n \n \"PrimingPaper\n  \n \n \n \"PrimingWebsite\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n\n\n\n
\n
@article{\n title = {Priming of Marine Macrophytes for Enhanced Restoration Success and Food Security in Future Oceans},\n type = {article},\n year = {2021},\n keywords = {DNA methylation, plasticity, stress memory, bio-en},\n pages = {279},\n volume = {8},\n websites = {https://www.frontiersin.org/article/10.3389/fmars.2021.658485},\n id = {ea01002f-1332-3c1e-b83b-539f10fdfbfc},\n created = {2021-03-30T05:53:02.461Z},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2021-05-17T20:44:06.863Z},\n read = {true},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Jueterbock2021},\n private_publication = {false},\n abstract = {Marine macrophytes, including seagrasses and macroalgae, form the basis of diverse and productive coastal ecosystems that deliver important ecosystem services. Moreover, western countries increasingly recognize macroalgae, traditionally cultivated in Asia, as targets for a new bio-economy that can be both economically profitable and environmentally sustainable. However, seagrass meadows and macroalgal forests are threatened by a variety of anthropogenic stressors. Most notably, rising temperatures and marine heatwaves are already devastating these ecosystems around the globe, and are likely to compromise profitability and production security of macroalgal farming in the near future. Recent studies show that seagrass and macroalgae can become less susceptible to heat events once they have been primed with heat stress. Priming is a common technique in crop agriculture in which plants acquire a stress memory that enhances performance under a second stress exposure. Molecular mechanisms underlying thermal priming are likely to include epigenetic mechanisms that switch state and permanently trigger stress-preventive genes after the first stress exposure. Priming may have considerable potential for both ecosystem restoration and macroalgae farming to immediately improve performance and stress resistance and, thus, to enhance restoration success and production security under environmental challenges. However, priming methodology cannot be simply transferred from terrestrial crops to marine macrophytes. We present first insights into the formation of stress memories in both seagrasses and macroalgae, and research gaps that need to be filled before priming can be established as new bio-engineering technique in these ecologically and economically important marine primary producers.},\n bibtype = {article},\n author = {Jueterbock, Alexander and Minne, Antoine J P and Cock, J Mark and Coleman, Melinda A and Wernberg, Thomas and Scheschonk, Lydia and Rautenberger, Ralf and Zhang, Jie and Hu, Zi-Min},\n doi = {10.3389/fmars.2021.658485},\n journal = {Frontiers in Marine Science},\n number = {March}\n}
\n
\n\n\n
\n Marine macrophytes, including seagrasses and macroalgae, form the basis of diverse and productive coastal ecosystems that deliver important ecosystem services. Moreover, western countries increasingly recognize macroalgae, traditionally cultivated in Asia, as targets for a new bio-economy that can be both economically profitable and environmentally sustainable. However, seagrass meadows and macroalgal forests are threatened by a variety of anthropogenic stressors. Most notably, rising temperatures and marine heatwaves are already devastating these ecosystems around the globe, and are likely to compromise profitability and production security of macroalgal farming in the near future. Recent studies show that seagrass and macroalgae can become less susceptible to heat events once they have been primed with heat stress. Priming is a common technique in crop agriculture in which plants acquire a stress memory that enhances performance under a second stress exposure. Molecular mechanisms underlying thermal priming are likely to include epigenetic mechanisms that switch state and permanently trigger stress-preventive genes after the first stress exposure. Priming may have considerable potential for both ecosystem restoration and macroalgae farming to immediately improve performance and stress resistance and, thus, to enhance restoration success and production security under environmental challenges. However, priming methodology cannot be simply transferred from terrestrial crops to marine macrophytes. We present first insights into the formation of stress memories in both seagrasses and macroalgae, and research gaps that need to be filled before priming can be established as new bio-engineering technique in these ecologically and economically important marine primary producers.\n
\n\n\n
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\n \n\n \n \n \n \n \n \n Bright spots as climate‐smart marine spatial planning tools for conservation and blue growth.\n \n \n \n \n\n\n \n Queirós, A., M.; Talbot, E.; Beaumont, N., J.; Somerfield, P., J.; Kay, S.; Pascoe, C.; Dedman, S.; Fernandes, J., A.; Jueterbock, A.; Miller, P., I.; Sailley, S., F.; Sará, G.; Carr, L., M.; Austen, M., C.; Widdicombe, S.; Rilov, G.; Levin, L., A.; Hull, S., C.; Walmsley, S., F.; and Nic Aonghusa, C.\n\n\n \n\n\n\n Global Change Biology, (August): 1-18. 2021.\n \n\n\n\n
\n\n\n\n \n \n \"BrightPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
\n
@article{\n title = {Bright spots as climate‐smart marine spatial planning tools for conservation and blue growth},\n type = {article},\n year = {2021},\n pages = {1-18},\n id = {741163f2-8760-3d8f-b15b-5eed12443c94},\n created = {2021-09-29T10:57:23.639Z},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2021-10-21T07:12:03.157Z},\n read = {false},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Queiros2021},\n private_publication = {false},\n bibtype = {article},\n author = {Queirós, Ana M. and Talbot, Elizabeth and Beaumont, Nicola J. and Somerfield, Paul J. and Kay, Susan and Pascoe, Christine and Dedman, Simon and Fernandes, Jose A. and Jueterbock, Alexander and Miller, Peter I. and Sailley, Sevrine F. and Sará, Ginaluca and Carr, Liam M. and Austen, Melanie C. and Widdicombe, Steve and Rilov, Gil and Levin, Lisa A. and Hull, Stephen C. and Walmsley, Suzannah F. and Nic Aonghusa, Caitriona},\n doi = {10.1111/gcb.15827},\n journal = {Global Change Biology},\n number = {August}\n}
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\n \n\n \n \n \n \n \n \n Detecting no natural hybridization and predicting range overlap in Saccharina angustata and Saccharina japonica.\n \n \n \n \n\n\n \n Zhang, J.; Yotsukura, N.; Jueterbock, A.; Hu, Z., M.; Assis, J.; Nagasato, C.; Yao, J.; and Duan, D.\n\n\n \n\n\n\n Journal of Applied Phycology, 33(1): 693-702. 2021.\n \n\n\n\n
\n\n\n\n \n \n \"DetectingPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@article{\n title = {Detecting no natural hybridization and predicting range overlap in Saccharina angustata and Saccharina japonica},\n type = {article},\n year = {2021},\n keywords = {Climate change,Genetic diversity,Interspecific hybridization,Phaeophyta,Range overlap,Saccharina},\n pages = {693-702},\n volume = {33},\n publisher = {Journal of Applied Phycology},\n id = {14a758f9-43c7-3c16-952a-c8e55766737d},\n created = {2021-11-09T08:23:13.747Z},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2021-11-09T08:23:24.344Z},\n read = {false},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Zhang2021},\n private_publication = {false},\n abstract = {Natural hybridization can play a significant role in evolutionary processes and influence the adaptive diversification and speciation of brown seaweeds. However, this phenomenon is as yet unknown in Saccharina kelps. Saccharina angustata and two varieties of Saccharina japonica (S. japonica var. japonica and S. japonica var. diabolica) partly overlap in distribution along the Pacific coast of Hokkaido, which makes them a good model system to study hybridization and introgression among species of the genus Saccharina. Based on 13 highly variable nuclear microsatellites and a mitochondrial marker, we assessed the genetic diversity levels of S. angustata for the first time and populations from Muroran to Shiranuka (western part of the Pacific coast in Hokkaido) exhibited highest genetic diversity. Genetic diversity of S. japonica was higher in S. japonica var. japonica as compared with S. japonica var. diabolica. There was significant genetic differentiation (FST > 0.25, p < 0.05) between S. japonica and S. angustata based on both markers. Moreover, there was poor genetic connectivity and limited interspecific hybridization among these closely related Saccharina species. Ecological niche models projected a northward expansion of both S. japonica and S. angustata under future climate scenarios and a range overlap between two species along the coast of Okhotsk Sea in Kamchatka Peninsula. The interspecific hybridization and genetic diversity among these kelps provide insights for kelp selection and cultivation as well as future conservation strategies of wild stocks.},\n bibtype = {article},\n author = {Zhang, Jie and Yotsukura, Norishige and Jueterbock, Alexander and Hu, Zi Min and Assis, Jorge and Nagasato, Chikako and Yao, Jianting and Duan, Delin},\n doi = {10.1007/s10811-020-02300-3},\n journal = {Journal of Applied Phycology},\n number = {1}\n}
\n
\n\n\n
\n Natural hybridization can play a significant role in evolutionary processes and influence the adaptive diversification and speciation of brown seaweeds. However, this phenomenon is as yet unknown in Saccharina kelps. Saccharina angustata and two varieties of Saccharina japonica (S. japonica var. japonica and S. japonica var. diabolica) partly overlap in distribution along the Pacific coast of Hokkaido, which makes them a good model system to study hybridization and introgression among species of the genus Saccharina. Based on 13 highly variable nuclear microsatellites and a mitochondrial marker, we assessed the genetic diversity levels of S. angustata for the first time and populations from Muroran to Shiranuka (western part of the Pacific coast in Hokkaido) exhibited highest genetic diversity. Genetic diversity of S. japonica was higher in S. japonica var. japonica as compared with S. japonica var. diabolica. There was significant genetic differentiation (FST > 0.25, p < 0.05) between S. japonica and S. angustata based on both markers. Moreover, there was poor genetic connectivity and limited interspecific hybridization among these closely related Saccharina species. Ecological niche models projected a northward expansion of both S. japonica and S. angustata under future climate scenarios and a range overlap between two species along the coast of Okhotsk Sea in Kamchatka Peninsula. The interspecific hybridization and genetic diversity among these kelps provide insights for kelp selection and cultivation as well as future conservation strategies of wild stocks.\n
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\n \n\n \n \n \n \n \n \n Intraspecific genetic variation matters when predicting seagrass distribution under climate change.\n \n \n \n \n\n\n \n Hu, Z., M.; Zhang, Q., S.; Zhang, J.; Kass, J., M.; Mammola, S.; Fresia, P.; Draisma, S., G.; Assis, J.; Jueterbock, A.; Yokota, M.; and Zhang, Z.\n\n\n \n\n\n\n Molecular Ecology, 30(15): 3840-3855. 2021.\n \n\n\n\n
\n\n\n\n \n \n \"IntraspecificPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@article{\n title = {Intraspecific genetic variation matters when predicting seagrass distribution under climate change},\n type = {article},\n year = {2021},\n keywords = {Thalassia hemprichii,climate change scenario,genetic lineage,niche conservation,range shift,species distribution model},\n pages = {3840-3855},\n volume = {30},\n id = {0fd18242-3bb3-3eb8-a5c1-d91f6076ab65},\n created = {2021-11-09T08:23:13.749Z},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2021-11-09T08:23:19.826Z},\n read = {false},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Hu2021b},\n private_publication = {false},\n abstract = {Seagrasses play a vital role in structuring coastal marine ecosystems, but their distributional range and genetic diversity have declined rapidly in recent decades. To improve conservation of seagrass species, it is important to predict how climate change may impact their ranges. Such predictions are typically made with correlative species distribution models (SDMs), which can estimate a species’ potential distribution under present and future climatic scenarios given species’ presence data and climatic predictor variables. However, these models are typically constructed with species-level data, and thus ignore intraspecific genetic variability, which can give rise to populations with adaptations to heterogeneous climatic conditions. Here, we explore the link between intraspecific adaptation and niche differentiation in Thalassia hemprichii, a seagrass broadly distributed in the tropical Indo-Pacific Ocean and a crucial provider of habitat for numerous marine species. By retrieving and re-analysing microsatellite data from previous studies, we delimited two distinct phylogeographical lineages within the nominal species and found an intermediate level of differentiation in their multidimensional environmental niches, suggesting the possibility for local adaptation. We then compared projections of the species’ habitat suitability under climate change scenarios using species-level and lineage-level SDMs. In the Central Tropical Indo-Pacific region, models for both levels predicted considerable range contraction in the future, but the lineage-level models predicted more severe habitat loss. Importantly, the two modelling approaches predicted opposite patterns of habitat change in the Western Tropical Indo-Pacific region. Our results highlight the necessity of conserving distinct populations and genetic pools to avoid regional extinction due to climate change and have important implications for guiding future management of seagrasses.},\n bibtype = {article},\n author = {Hu, Zi Min and Zhang, Quan Sheng and Zhang, Jie and Kass, Jamie M. and Mammola, Stefano and Fresia, Pablo and Draisma, Stefano G.A. and Assis, Jorge and Jueterbock, Alexander and Yokota, Masashi and Zhang, Zhixin},\n doi = {10.1111/mec.15996},\n journal = {Molecular Ecology},\n number = {15}\n}
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\n Seagrasses play a vital role in structuring coastal marine ecosystems, but their distributional range and genetic diversity have declined rapidly in recent decades. To improve conservation of seagrass species, it is important to predict how climate change may impact their ranges. Such predictions are typically made with correlative species distribution models (SDMs), which can estimate a species’ potential distribution under present and future climatic scenarios given species’ presence data and climatic predictor variables. However, these models are typically constructed with species-level data, and thus ignore intraspecific genetic variability, which can give rise to populations with adaptations to heterogeneous climatic conditions. Here, we explore the link between intraspecific adaptation and niche differentiation in Thalassia hemprichii, a seagrass broadly distributed in the tropical Indo-Pacific Ocean and a crucial provider of habitat for numerous marine species. By retrieving and re-analysing microsatellite data from previous studies, we delimited two distinct phylogeographical lineages within the nominal species and found an intermediate level of differentiation in their multidimensional environmental niches, suggesting the possibility for local adaptation. We then compared projections of the species’ habitat suitability under climate change scenarios using species-level and lineage-level SDMs. In the Central Tropical Indo-Pacific region, models for both levels predicted considerable range contraction in the future, but the lineage-level models predicted more severe habitat loss. Importantly, the two modelling approaches predicted opposite patterns of habitat change in the Western Tropical Indo-Pacific region. Our results highlight the necessity of conserving distinct populations and genetic pools to avoid regional extinction due to climate change and have important implications for guiding future management of seagrasses.\n
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\n \n\n \n \n \n \n \n \n A concise review of the brown seaweed Sargassum thunbergii — a knowledge base to inform large-scale cultivation efforts.\n \n \n \n \n\n\n \n Liu, F., L.; Li, J., J.; Liang, Z., R.; Zhang, Q., S.; Zhao, F., J.; Jueterbock, A.; Critchley, A., T.; Morrell, S., L.; Assis, J.; Tang, Y., Z.; and Hu, Z., M.\n\n\n \n\n\n\n Journal of Applied Phycology, (0123456789). 2021.\n \n\n\n\n
\n\n\n\n \n \n \"APaper\n  \n \n \n \"AWebsite\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@article{\n title = {A concise review of the brown seaweed Sargassum thunbergii — a knowledge base to inform large-scale cultivation efforts},\n type = {article},\n year = {2021},\n keywords = {Aquaculture,Climate change,Conservation,Cultivation,Ecological adaptation,Genetic diversity,Phaeophyceae},\n websites = {https://doi.org/10.1007/s10811-021-02557-2},\n publisher = {Springer Netherlands},\n id = {9a344a50-812c-39ca-99ff-53d3e64cc435},\n created = {2021-11-09T08:23:13.751Z},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2021-11-09T08:23:20.609Z},\n read = {false},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Liu2021},\n private_publication = {false},\n abstract = {Sargassum thunbergii is a brown macroalga endemic to the northwest Pacific. It plays important ecological roles in the structure and maintenance of coastal marine ecosystems. The bioactive compounds extracted from S. thunbergii have been extensively documented for potential use in anti-obesity, anti-inflammatory activity, anti-tumor, anti-oxidant and aquacultural drugs. The species is edible and contains relatively high levels of proteins, minerals and several types of amino acids. The present work compiles recently published literature on S. thunbergii, with particular focus on cultivation efforts in China, including the breeding of seedlings and cultivation at sea. A concise review of possible applications is given. Distribution, range shifts associated with past climate change, population genetic structure and connectivity, life history, reproduction and development are all detailed. The review provides important guidelines for future large-scale farming of S. thunbergii. This will help aquaculturalists (phyconomists) to meet the expected increases in demand by industrial users. It will also help to conserve natural populations which may be declining due to destructive harvesting and rapid ocean changes.},\n bibtype = {article},\n author = {Liu, Fu Li and Li, Jing Jing and Liang, Zhou Rui and Zhang, Quan Sheng and Zhao, Feng Juan and Jueterbock, Alexander and Critchley, Alan T. and Morrell, Stephen L. and Assis, Jorge and Tang, Yong Zheng and Hu, Zi Min},\n doi = {10.1007/s10811-021-02557-2},\n journal = {Journal of Applied Phycology},\n number = {0123456789}\n}
\n
\n\n\n
\n Sargassum thunbergii is a brown macroalga endemic to the northwest Pacific. It plays important ecological roles in the structure and maintenance of coastal marine ecosystems. The bioactive compounds extracted from S. thunbergii have been extensively documented for potential use in anti-obesity, anti-inflammatory activity, anti-tumor, anti-oxidant and aquacultural drugs. The species is edible and contains relatively high levels of proteins, minerals and several types of amino acids. The present work compiles recently published literature on S. thunbergii, with particular focus on cultivation efforts in China, including the breeding of seedlings and cultivation at sea. A concise review of possible applications is given. Distribution, range shifts associated with past climate change, population genetic structure and connectivity, life history, reproduction and development are all detailed. The review provides important guidelines for future large-scale farming of S. thunbergii. This will help aquaculturalists (phyconomists) to meet the expected increases in demand by industrial users. It will also help to conserve natural populations which may be declining due to destructive harvesting and rapid ocean changes.\n
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\n \n\n \n \n \n \n \n \n Adaptation of Temperate Seagrass to Arctic Light Relies on Seasonal Acclimatization of Carbon Capture and Metabolism.\n \n \n \n \n\n\n \n Jueterbock, A.; Duarte, B.; Coyer, J.; Olsen, J., L.; Kopp, M., E., L.; Smolina, I.; Arnaud-Haond, S.; Hu, Z., M.; and Hoarau, G.\n\n\n \n\n\n\n Frontiers in Plant Science, 12(December). 2021.\n \n\n\n\n
\n\n\n\n \n \n \"AdaptationPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@article{\n title = {Adaptation of Temperate Seagrass to Arctic Light Relies on Seasonal Acclimatization of Carbon Capture and Metabolism},\n type = {article},\n year = {2021},\n keywords = {Arctic light,carbon capture,climate change,daylength,eelgrass (Zostera marina),energy storage,photosynthesis,respiration},\n volume = {12},\n id = {feeb713e-9e46-3fc7-8110-beb9f8623110},\n created = {2021-12-03T11:31:39.473Z},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2023-02-20T22:41:19.974Z},\n read = {true},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Jueterbock2021a},\n folder_uuids = {0fb5a67a-6627-4c5b-95fa-1f6ecc9d8721},\n private_publication = {false},\n abstract = {Due to rising global surface temperatures, Arctic habitats are becoming thermally suitable for temperate species. Whether a temperate species can immigrate into an ice-free Arctic depends on its ability to tolerate extreme seasonal fluctuations in daylength. Thus, understanding adaptations to polar light conditions can improve the realism of models predicting poleward range expansions in response to climate change. Plant adaptations to polar light have rarely been studied and remain unknown in seagrasses. If these ecosystem engineers can migrate polewards, seagrasses will enrich biodiversity, and carbon capture potential in shallow coastal regions of the Arctic. Eelgrass (Zostera marina) is the most widely distributed seagrass in the northern hemisphere. As the only seagrass species growing as far north as 70°N, it is the most likely candidate to first immigrate into an ice-free Arctic. Here, we describe seasonal (and diurnal) changes in photosynthetic characteristics, and in genome-wide gene expression patterns under strong annual fluctuations of daylength. We compared PAM measurements and RNA-seq data between two populations at the longest and shortest day of the year: (1) a Mediterranean population exposed to moderate annual fluctuations of 10–14 h daylength and (2) an Arctic population exposed to high annual fluctuations of 0–24 h daylength. Most of the gene expression specificities of the Arctic population were found in functions of the organelles (chloroplast and mitochondrion). In winter, Arctic eelgrass conserves energy by repressing respiration and reducing photosynthetic energy fluxes. Although light-reactions, and genes involved in carbon capture and carbon storage were upregulated in summer, enzymes involved in CO2 fixation and chlorophyll-synthesis were upregulated in winter, suggesting that winter metabolism relies not only on stored energy resources but also on active use of dim light conditions. Eelgrass is unable to use excessive amounts of light during summer and demonstrates a significant reduction in photosynthetic performance under long daylengths, possibly to prevent photoinhibition constrains. Our study identified key mechanisms that allow eelgrass to survive under Arctic light conditions and paves the way for experimental research to predict whether and up to which latitude eelgrass can potentially migrate polewards in response to climate change.},\n bibtype = {article},\n author = {Jueterbock, Alexander and Duarte, Bernardo and Coyer, James and Olsen, Jeanine L. and Kopp, Martina Elisabeth Luise and Smolina, Irina and Arnaud-Haond, Sophie and Hu, Zi Min and Hoarau, Galice},\n doi = {10.3389/fpls.2021.745855},\n journal = {Frontiers in Plant Science},\n number = {December}\n}
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\n Due to rising global surface temperatures, Arctic habitats are becoming thermally suitable for temperate species. Whether a temperate species can immigrate into an ice-free Arctic depends on its ability to tolerate extreme seasonal fluctuations in daylength. Thus, understanding adaptations to polar light conditions can improve the realism of models predicting poleward range expansions in response to climate change. Plant adaptations to polar light have rarely been studied and remain unknown in seagrasses. If these ecosystem engineers can migrate polewards, seagrasses will enrich biodiversity, and carbon capture potential in shallow coastal regions of the Arctic. Eelgrass (Zostera marina) is the most widely distributed seagrass in the northern hemisphere. As the only seagrass species growing as far north as 70°N, it is the most likely candidate to first immigrate into an ice-free Arctic. Here, we describe seasonal (and diurnal) changes in photosynthetic characteristics, and in genome-wide gene expression patterns under strong annual fluctuations of daylength. We compared PAM measurements and RNA-seq data between two populations at the longest and shortest day of the year: (1) a Mediterranean population exposed to moderate annual fluctuations of 10–14 h daylength and (2) an Arctic population exposed to high annual fluctuations of 0–24 h daylength. Most of the gene expression specificities of the Arctic population were found in functions of the organelles (chloroplast and mitochondrion). In winter, Arctic eelgrass conserves energy by repressing respiration and reducing photosynthetic energy fluxes. Although light-reactions, and genes involved in carbon capture and carbon storage were upregulated in summer, enzymes involved in CO2 fixation and chlorophyll-synthesis were upregulated in winter, suggesting that winter metabolism relies not only on stored energy resources but also on active use of dim light conditions. Eelgrass is unable to use excessive amounts of light during summer and demonstrates a significant reduction in photosynthetic performance under long daylengths, possibly to prevent photoinhibition constrains. Our study identified key mechanisms that allow eelgrass to survive under Arctic light conditions and paves the way for experimental research to predict whether and up to which latitude eelgrass can potentially migrate polewards in response to climate change.\n
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\n  \n 2020\n \n \n (2)\n \n \n
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\n \n\n \n \n \n \n \n \n Hierarchical genetic structuring in the cool boreal kelp, Laminaria digitata: implications for conservation and management.\n \n \n \n \n\n\n \n King, N., G.; McKeown, N., J.; Smale, D., A.; Bradbury, S.; Stamp, T.; Jüterbock, A.; Egilsdóttir, H.; Groves, E., A.; and Moore, P., J.\n\n\n \n\n\n\n ICES Journal of Marine Science. 2020.\n \n\n\n\n
\n\n\n\n \n \n \"HierarchicalPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
\n
@article{\n title = {Hierarchical genetic structuring in the cool boreal kelp, Laminaria digitata: implications for conservation and management},\n type = {article},\n year = {2020},\n keywords = {genetic diversity,glacial refugia,range centre,range contraction,trailing edge},\n id = {304e8ecb-7044-3265-b4ff-04418c432581},\n created = {2020-05-29T18:45:03.878Z},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2020-09-09T09:22:44.647Z},\n read = {false},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {King2020a},\n private_publication = {false},\n abstract = {Kelp are foundation species threatened by ongoing warming trends and increased harvesting pressure. This emphasizes the need to study genetic structure over various spatial scales to resolve demographic and genetic processes underpinning resilience. Here, we investigate the genetic diversity in the kelp, Laminaria digitata, in previously understudied southern (trailing-edge) and northern (range-centre) regions in the Northeastern Atlantic Ocean. There was strong hierarchical spatial structuring with significantly lower genetic variability and gene flow among southern populations. As these span the area of the Hurd’s deep Pleistocene glacial refuge, the current low variation likely reflects a fraction of previous levels that has been eroded at the species southern edge. Northern variability and private alleles also indicate contributions from cryptic northern glacial refugia. Contrary to expectations of a positive relationship between neutral genetic diversity and resilience, a previous study reported individuals from the same genetically impoverished southern populations to be better adapted to cope with thermal stress than northern individuals. This not only demonstrates that neutral genetic diversity may be a poor indicator of resilience to environmental stress but also confirms that extirpation of southern populations will result in the loss of evolved, not just potential, adaptations for resilience.},\n bibtype = {article},\n author = {King, Nathan G and McKeown, Niall J and Smale, Dan A and Bradbury, Sunny and Stamp, Thomas and Jüterbock, Alexander and Egilsdóttir, Hrönn and Groves, Emily A and Moore, Pippa J},\n doi = {10.1093/icesjms/fsaa055},\n journal = {ICES Journal of Marine Science}\n}
\n
\n\n\n
\n Kelp are foundation species threatened by ongoing warming trends and increased harvesting pressure. This emphasizes the need to study genetic structure over various spatial scales to resolve demographic and genetic processes underpinning resilience. Here, we investigate the genetic diversity in the kelp, Laminaria digitata, in previously understudied southern (trailing-edge) and northern (range-centre) regions in the Northeastern Atlantic Ocean. There was strong hierarchical spatial structuring with significantly lower genetic variability and gene flow among southern populations. As these span the area of the Hurd’s deep Pleistocene glacial refuge, the current low variation likely reflects a fraction of previous levels that has been eroded at the species southern edge. Northern variability and private alleles also indicate contributions from cryptic northern glacial refugia. Contrary to expectations of a positive relationship between neutral genetic diversity and resilience, a previous study reported individuals from the same genetically impoverished southern populations to be better adapted to cope with thermal stress than northern individuals. This not only demonstrates that neutral genetic diversity may be a poor indicator of resilience to environmental stress but also confirms that extirpation of southern populations will result in the loss of evolved, not just potential, adaptations for resilience.\n
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\n \n\n \n \n \n \n \n \n The seagrass methylome is associated with variation in photosynthetic performance among clonal shoots.\n \n \n \n \n\n\n \n Jueterbock, A.; Boström, C.; Coyer, J., A.; Olsen, J., L.; Kopp, M.; Dhanasiri, A., K.; Smolina, I.; Arnaud-Haond, S.; Van de Peer, Y.; and Hoarau, G.\n\n\n \n\n\n\n Frontiers in Plant Science, 11: 1. 2020.\n \n\n\n\n
\n\n\n\n \n \n \"ThePaper\n  \n \n \n \"TheWebsite\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@article{\n title = {The seagrass methylome is associated with variation in photosynthetic performance among clonal shoots},\n type = {article},\n year = {2020},\n keywords = {DNA methylation,Zostera marina (eelgrass),clonality,ecological epigenetics,heat stress,seagrass},\n pages = {1},\n volume = {11},\n websites = {www.frontiersin.org},\n publisher = {Frontiers},\n day = {4},\n id = {a68a65d0-2578-3b77-aaff-04596506c9b7},\n created = {2020-09-04T07:47:43.370Z},\n accessed = {2020-09-04},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2022-05-22T19:25:56.682Z},\n read = {true},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Jueterbock2020},\n folder_uuids = {0fb5a67a-6627-4c5b-95fa-1f6ecc9d8721},\n private_publication = {false},\n abstract = {Evolutionary theory predicts that clonal organisms are more susceptible to extinction than sexually reproducing organisms, due to low genetic variation and slow rates of evolution. In agreement, conservation management considers genetic variation as the ultimate measure of a population’s ability to survive over time. However, clonal plants are among the oldest living organisms on our planet. Here, we test the hypothesis that clonal seagrass meadows display epigenetic variation that complements genetic variation as a source of phenotypic variation. In a clonal meadow of the seagrass Zostera marina, we characterized DNA methylation among 42 shoots. We also sequenced the whole genome of 10 shoots to correlate methylation patterns with photosynthetic performance under exposure to and recovery from 27°C, while controlling for somatic mutations. Here, we show for the first time that clonal seagrass shoots display DNA methylation variation that is independent from underlying genetic variation, and associated with variation in photosynthetic performance under experimental conditions. It remains unknown to what degree this association could be influenced by epigenetic responses to transplantation-related stress, given that the methylomes showed a strong shift under acclimation to laboratory conditions. The lack of untreated control samples in the heat stress experiment did not allow us to distinguish methylome shifts induced by acclimation from such induced by heat stress. Notwithstanding, the co-variation in DNA methylation and photosynthetic performance may be linked via gene expression because methylation patterns varied in functionally relevant genes involved in photosynthesis, and in the repair and prevention of heat-induced protein damage. While genotypic diversity has been shown to enhance stress resilience in seagrass meadows, we suggest that epigenetic variation plays a similar role in meadows dominated by a single genotype. Consequently, conservation management of clonal plants should consider epigenetic variation as indicator of resilience and stability.},\n bibtype = {article},\n author = {Jueterbock, Alexander and Boström, Christoffer and Coyer, James A. and Olsen, Jeanine L. and Kopp, Martina and Dhanasiri, Anusha K.S. and Smolina, Irina and Arnaud-Haond, Sophie and Van de Peer, Yves and Hoarau, Galice},\n doi = {10.3389/fpls.2020.571646},\n journal = {Frontiers in Plant Science}\n}
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\n Evolutionary theory predicts that clonal organisms are more susceptible to extinction than sexually reproducing organisms, due to low genetic variation and slow rates of evolution. In agreement, conservation management considers genetic variation as the ultimate measure of a population’s ability to survive over time. However, clonal plants are among the oldest living organisms on our planet. Here, we test the hypothesis that clonal seagrass meadows display epigenetic variation that complements genetic variation as a source of phenotypic variation. In a clonal meadow of the seagrass Zostera marina, we characterized DNA methylation among 42 shoots. We also sequenced the whole genome of 10 shoots to correlate methylation patterns with photosynthetic performance under exposure to and recovery from 27°C, while controlling for somatic mutations. Here, we show for the first time that clonal seagrass shoots display DNA methylation variation that is independent from underlying genetic variation, and associated with variation in photosynthetic performance under experimental conditions. It remains unknown to what degree this association could be influenced by epigenetic responses to transplantation-related stress, given that the methylomes showed a strong shift under acclimation to laboratory conditions. The lack of untreated control samples in the heat stress experiment did not allow us to distinguish methylome shifts induced by acclimation from such induced by heat stress. Notwithstanding, the co-variation in DNA methylation and photosynthetic performance may be linked via gene expression because methylation patterns varied in functionally relevant genes involved in photosynthesis, and in the repair and prevention of heat-induced protein damage. While genotypic diversity has been shown to enhance stress resilience in seagrass meadows, we suggest that epigenetic variation plays a similar role in meadows dominated by a single genotype. Consequently, conservation management of clonal plants should consider epigenetic variation as indicator of resilience and stability.\n
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\n  \n 2019\n \n \n (2)\n \n \n
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\n \n\n \n \n \n \n \n \n Phylogeographic diversification and postglacial range dynamics shed light on the conservation of the kelp Saccharina japonica.\n \n \n \n \n\n\n \n Zhang, J.; Yao, J.; Hu, Z., M.; Jueterbock, A.; Yotsukura, N.; Krupnova, T., N.; Nagasato, C.; and Duan, D.\n\n\n \n\n\n\n Evolutionary Applications, 12(4): 791-803. 2019.\n \n\n\n\n
\n\n\n\n \n \n \"PhylogeographicPaper\n  \n \n \n \"PhylogeographicWebsite\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@article{\n title = {Phylogeographic diversification and postglacial range dynamics shed light on the conservation of the kelp Saccharina japonica},\n type = {article},\n year = {2019},\n keywords = {Saccharina japonica,glacial refugium,phylogeographic diversification,range dynamics,secondary contact},\n pages = {791-803},\n volume = {12},\n websites = {https://onlinelibrary.wiley.com/doi/abs/10.1111/eva.12756},\n id = {96e3980b-a7f2-3848-a5f0-e24e317d2385},\n created = {2019-02-13T09:07:29.323Z},\n accessed = {2019-02-13},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2020-09-09T09:22:44.645Z},\n read = {true},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Zhang2018b},\n private_publication = {false},\n abstract = {Studies of postglacial range shifts could enhance our understanding of seaweed species’ responses to climate change and hence facilitate the conservation of natural resources. However, the distribution dynamics and phylogeographic diversification of the commercially and ecologically important kelp Saccharina japonica in the Northwest Pacific (NWP) are still poorly surveyed. In this study, we analyzed the evolutionary history of S. japonica using two mitochondrial markers and 24 nuclear microsatellites. A STRUCTURE analysis revealed two partially isolated lineages: lineage H, which is scattered along the coast of Japan; and lineage P, which occurs along the west coast of the Japan Sea. Ecological niche modeling projections to the Last Glacial Maximum (LGM) revealed that the southern coasts of the Japan Sea and the Pacific side of the Oshima and Honshu Peninsulas provided the most suitable habitats for S. japonica, implying that these regions served as ancient refugia during the LGM. Ancient isolation in different refugia may explain the observed divergence between lineages P and H. An approximate Bayesian computation analysis indicated that the two lineages experienced post-LGM range expansion and that postglacial secondary contact occurred in Sakhalin. Model projections into the year 2,100 predicted that S. japonica will shift northwards and lose its genetic diversity center on the Oshima Peninsula in Hokkaido and Shimokita Peninsula in Honshu. The range shifts and evolutionary history of S. japonica improve our understanding of how climate change impacted the distribution range and diversity of this species and provide useful information for the conservation of natural resources under ongoing environmental change in the NWP.},\n bibtype = {article},\n author = {Zhang, Jie and Yao, Jianting and Hu, Zi Min and Jueterbock, Alexander and Yotsukura, Norishige and Krupnova, Tatiana N. and Nagasato, Chikako and Duan, Delin},\n doi = {10.1111/eva.12756},\n journal = {Evolutionary Applications},\n number = {4}\n}
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\n Studies of postglacial range shifts could enhance our understanding of seaweed species’ responses to climate change and hence facilitate the conservation of natural resources. However, the distribution dynamics and phylogeographic diversification of the commercially and ecologically important kelp Saccharina japonica in the Northwest Pacific (NWP) are still poorly surveyed. In this study, we analyzed the evolutionary history of S. japonica using two mitochondrial markers and 24 nuclear microsatellites. A STRUCTURE analysis revealed two partially isolated lineages: lineage H, which is scattered along the coast of Japan; and lineage P, which occurs along the west coast of the Japan Sea. Ecological niche modeling projections to the Last Glacial Maximum (LGM) revealed that the southern coasts of the Japan Sea and the Pacific side of the Oshima and Honshu Peninsulas provided the most suitable habitats for S. japonica, implying that these regions served as ancient refugia during the LGM. Ancient isolation in different refugia may explain the observed divergence between lineages P and H. An approximate Bayesian computation analysis indicated that the two lineages experienced post-LGM range expansion and that postglacial secondary contact occurred in Sakhalin. Model projections into the year 2,100 predicted that S. japonica will shift northwards and lose its genetic diversity center on the Oshima Peninsula in Hokkaido and Shimokita Peninsula in Honshu. The range shifts and evolutionary history of S. japonica improve our understanding of how climate change impacted the distribution range and diversity of this species and provide useful information for the conservation of natural resources under ongoing environmental change in the NWP.\n
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\n \n\n \n \n \n \n \n \n Towards population genomics in non-model species with large genomes: A case study of the marine zooplankton Calanus finmarchicus.\n \n \n \n \n\n\n \n Choquet, M.; Smolina, I.; Dhanasiri, A., K.; Blanco-Bercial, L.; Kopp, M.; Jueterbock, A.; Sundaram, A., Y.; and Hoarau, G.\n\n\n \n\n\n\n Royal Society Open Science, 6(2). 2019.\n \n\n\n\n
\n\n\n\n \n \n \"TowardsWebsite\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
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@article{\n title = {Towards population genomics in non-model species with large genomes: A case study of the marine zooplankton Calanus finmarchicus},\n type = {article},\n year = {2019},\n keywords = {Calanus spp,Genome reduced-representation,Sequence capture enrichment},\n volume = {6},\n websites = {https://royalsocietypublishing.org/doi/10.1098/rsos.180608},\n publisher = {\nThe Royal Society\n},\n id = {412ea2cd-4c99-3627-b205-31f670d33a74},\n created = {2019-02-13T09:07:40.744Z},\n accessed = {2019-02-13},\n file_attached = {false},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2020-09-09T09:22:44.622Z},\n read = {false},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Choquet2019},\n private_publication = {false},\n abstract = {Advances in next-generation sequencing technologies and the development of genome-reduced representation protocols have opened the way to genome-wide population studies in non-model species. However, species with large genomes remain challenging, hampering the development of genomic resources for a number of taxa including marine arthropods. Here, we developed a genome-reduced representation method for the ecologically important marine copepod Calanus finmarchicus (haploid genome size of 6.34 Gbp). We optimized a capture enrichment-based protocol based on 2656 single-copy genes, yielding a total of 154 087 high-quality SNPs in C. finmarchicus including 62 372 in common among the three locations tested. The set of capture probes was also successfully applied to the congeneric C. glacialis. Preliminary analyses of these markers revealed similar levels of genetic diversity between the two Calanus species, while populations of C. glacialis showed stronger genetic structure compared to C. finmarchicus. Using this powerful set of markers, we did not detect any evidence of hybridization between C. finmarchicus and C. glacialis. Finally, we propose a shortened version of our protocol, offering a promising solution for population genomics studies in non-model species with large genomes.},\n bibtype = {article},\n author = {Choquet, Marvin and Smolina, Irina and Dhanasiri, Anusha K.S. and Blanco-Bercial, Leocadio and Kopp, Martina and Jueterbock, Alexander and Sundaram, Arvind Y.M. and Hoarau, Galice},\n doi = {10.1098/rsos.180608},\n journal = {Royal Society Open Science},\n number = {2}\n}
\n
\n\n\n
\n Advances in next-generation sequencing technologies and the development of genome-reduced representation protocols have opened the way to genome-wide population studies in non-model species. However, species with large genomes remain challenging, hampering the development of genomic resources for a number of taxa including marine arthropods. Here, we developed a genome-reduced representation method for the ecologically important marine copepod Calanus finmarchicus (haploid genome size of 6.34 Gbp). We optimized a capture enrichment-based protocol based on 2656 single-copy genes, yielding a total of 154 087 high-quality SNPs in C. finmarchicus including 62 372 in common among the three locations tested. The set of capture probes was also successfully applied to the congeneric C. glacialis. Preliminary analyses of these markers revealed similar levels of genetic diversity between the two Calanus species, while populations of C. glacialis showed stronger genetic structure compared to C. finmarchicus. Using this powerful set of markers, we did not detect any evidence of hybridization between C. finmarchicus and C. glacialis. Finally, we propose a shortened version of our protocol, offering a promising solution for population genomics studies in non-model species with large genomes.\n
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\n  \n 2018\n \n \n (2)\n \n \n
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\n \n\n \n \n \n \n \n \n Decadal stability in genetic variation and structure in the intertidal seaweed Fucus serratus ( Heterokontophyta : Fucaceae ).\n \n \n \n \n\n\n \n Jueterbock, A.; Coyer, J., A.; Olsen, J., L.; and Hoarau, G.\n\n\n \n\n\n\n BMC Evolutionary Biology, 18(94): 1-12. 2018.\n \n\n\n\n
\n\n\n\n \n \n \"DecadalPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
\n
@article{\n title = {Decadal stability in genetic variation and structure in the intertidal seaweed Fucus serratus ( Heterokontophyta : Fucaceae )},\n type = {article},\n year = {2018},\n keywords = {Brown algae,Effective population size,Evolutionary,brown algae,effective population size,evolutionary potential,genetic diversity,microsatellites,north},\n pages = {1-12},\n volume = {18},\n publisher = {BMC Evolutionary Biology},\n id = {987bef38-49dc-3009-95bf-bcb03dc3510f},\n created = {2018-06-15T07:26:34.086Z},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2020-01-28T19:53:20.757Z},\n read = {true},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Jueterbock2018},\n folder_uuids = {124d8258-2fe5-4ac2-8f9d-dc470e7396cc},\n private_publication = {false},\n abstract = {Background The spatial distribution of genetic diversity and structure has important implications for conservation as it reveals a species’ strong and weak points with regard to stability and evolutionary capacity. Temporal genetic stability is rarely tested in marine species other than commercially important fishes, but is crucial for the utility of temporal snapshots in conservation management. High and stable diversity can help to mitigate the predicted northward range shift of seaweeds under the impact of climate change. Given the key ecological role of fucoid seaweeds along rocky shores, the positive effect of genetic diversity may reach beyond the species level to stabilize the entire intertidal ecosystem along the temperate North Atlantic. In this study, we estimated the effective population size, as well as temporal changes in genetic structure and diversity of the seaweed F. serratus using 22 microsatellite markers. Samples were taken across latitudes and a range of temperature regimes at seven locations with decadal sampling (2000 and 2010). Results Across latitudes, genetic structure and diversity remained stable over 5–10 generations. Stable small-scale structure enhanced regional diversity throughout the species’ range. In accordance with its biogeographic history, effective population size and diversity peaked in the species’ mid-range in Brittany (France), and declined towards its leading and trailing edge to the north and south. At the species’ southern edge, multi-locus-heterozygosity displayed a strong decline from 1999 to 2010. Conclusion Temporally stable genetic structure over small spatial scales is a potential driver for local adaptation and species radiation in the genus Fucus. Survival and adaptation of the low-diversity leading edge of F. serratus may be enhanced by regional gene flow and ‘surfing’ of favorable mutations or impaired by the accumulation of deleterious mutations. Our results have clear implications for the conservation of F. serratus at its genetically unique southern edge in Northwest Iberia, where increasing temperatures are likely the major cause for the decline not only of F. serratus, but also other intertidal and subtidal macroalgae. We expect that F. serratus will disappear from Northwest Iberia by 2100 if genetic rescue is not induced by the influx of genetic variation from Brittany.},\n bibtype = {article},\n author = {Jueterbock, Alexander and Coyer, James A and Olsen, Jeanine L and Hoarau, Galice},\n doi = {10.1186/s12862-018-1213-2},\n journal = {BMC Evolutionary Biology},\n number = {94}\n}
\n
\n\n\n
\n Background The spatial distribution of genetic diversity and structure has important implications for conservation as it reveals a species’ strong and weak points with regard to stability and evolutionary capacity. Temporal genetic stability is rarely tested in marine species other than commercially important fishes, but is crucial for the utility of temporal snapshots in conservation management. High and stable diversity can help to mitigate the predicted northward range shift of seaweeds under the impact of climate change. Given the key ecological role of fucoid seaweeds along rocky shores, the positive effect of genetic diversity may reach beyond the species level to stabilize the entire intertidal ecosystem along the temperate North Atlantic. In this study, we estimated the effective population size, as well as temporal changes in genetic structure and diversity of the seaweed F. serratus using 22 microsatellite markers. Samples were taken across latitudes and a range of temperature regimes at seven locations with decadal sampling (2000 and 2010). Results Across latitudes, genetic structure and diversity remained stable over 5–10 generations. Stable small-scale structure enhanced regional diversity throughout the species’ range. In accordance with its biogeographic history, effective population size and diversity peaked in the species’ mid-range in Brittany (France), and declined towards its leading and trailing edge to the north and south. At the species’ southern edge, multi-locus-heterozygosity displayed a strong decline from 1999 to 2010. Conclusion Temporally stable genetic structure over small spatial scales is a potential driver for local adaptation and species radiation in the genus Fucus. Survival and adaptation of the low-diversity leading edge of F. serratus may be enhanced by regional gene flow and ‘surfing’ of favorable mutations or impaired by the accumulation of deleterious mutations. Our results have clear implications for the conservation of F. serratus at its genetically unique southern edge in Northwest Iberia, where increasing temperatures are likely the major cause for the decline not only of F. serratus, but also other intertidal and subtidal macroalgae. We expect that F. serratus will disappear from Northwest Iberia by 2100 if genetic rescue is not induced by the influx of genetic variation from Brittany.\n
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\n \n\n \n \n \n \n \n \n Climate change impacts on seagrass meadows and macroalgal forests: an integrative perspective on acclimation and adaptation potential.\n \n \n \n \n\n\n \n Duarte, B.; Martins, I.; Rosa, R.; Matos, A., R.; Roleda, M., Y.; Reusch, T., B., H.; Engelen, A., H.; Serrao, E., A.; Pearson, G., A.; Marques, J., C., J.; Caçador, I.; Duarte, C., M.; Jüterbock, A.; Gazeau, F.; Tuya, F.; Zimmer, M.; Duarte, B.; Martins, I.; Rosa, R.; Matos, A., R.; Roleda, M., Y.; Reusch, T., B., H.; Engelen, A., H.; Serrão, E., A.; Pearson, G., A.; Marques, J., C., J.; Caçador, I.; Duarte, C., M.; and Jueterbock, A.\n\n\n \n\n\n\n Frontiers in Marine Science, 5(5): 190. 2018.\n \n\n\n\n
\n\n\n\n \n \n \"ClimatePaper\n  \n \n \n \"ClimateWebsite\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
\n
@article{\n title = {Climate change impacts on seagrass meadows and macroalgal forests: an integrative perspective on acclimation and adaptation potential},\n type = {article},\n year = {2018},\n keywords = {Physiology,Seagrasses,early life stages,epigenetics,global climate change,kelp forests,microbiome,modeling,modelling,physiology,seagrasses},\n pages = {190},\n volume = {5},\n websites = {http://scholar.google.com/scholar?hl=en&btnG=Search&q=intitle:THE+SEAWEED+RESOURCES+OF+CHINA#0ra},\n publisher = {Frontiers},\n id = {fa491b7f-ce33-35ca-be2b-7d79ece08bd0},\n created = {2018-07-11T20:44:05.350Z},\n accessed = {2018-05-23},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2020-11-10T18:27:17.917Z},\n read = {true},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Duarte2018},\n folder_uuids = {62925171-3543-4959-8c28-f9854ff82a58},\n private_publication = {false},\n abstract = {Marine macrophytes are the foundation of algal forests and seagrass meadows¬–some of the most productive and diverse coastal marine ecosystems on the planet. These ecosystems provide nursery grounds and food for fish and invertebrates, coastline protection from erosion, carbon sequestration, and nutrient fixation. For marine macrophytes, temperature is generally the most important range limiting factor, and ocean warming is considered the most severe threat among global climate change factors. ocean warming induced losses of dominant macrophytes along their equatorial range edges, as well as range extensions into polar regions, are predicted and already documented. While adaptive evolution based on genetic change is considered too slow to keep pace with the increasing rate of anthropogenic environmental changes, rapid adaptation may come about through a set of non-genetic mechanisms involving the functional composition of the associated microbiome, as well as epigenetic modification of the genome and its regulatory effect on gene expression and the activity of transposable elements. While research in terrestrial plants demonstrates that the integration of non-genetic mechanisms provide a more holistic picture of a species' evolutionary potential, research in marine systems is lagging behind. Here, we aim to review the potential of marine macrophytes to acclimatize and adapt to major climate change effects via intraspecific variation at the genetic, epigenetic, and microbiome levels. All three levels create phenotypic variation that may either enhance fitness within individuals (plasticity) or be subject to selection and ultimately, adaptation. We review three of the most important phenotypic variations in a climate change context, including physiological variation, variation in propagation success, and in herbivore resistance. Integrating different levels of plasticity, and adaptability into ecological models will allow to obtain a more holistic understanding of trait variation and a realistic assessment of the future performance and distribution of marine macrophytes. Such multi-disciplinary approach that integrates various levels of intraspecific variation, and their effect on phenotypic and physiological variation, is of crucial importance for the effective management and conservation of seagrasses and macroalgae under climate change.},\n bibtype = {article},\n author = {Duarte, Bernardo and Martins, Irene and Rosa, Rui and Matos, Ana Rita and Roleda, Michael Y and Reusch, Thorsten B H and Engelen, Aschwin Hillebrand and Serrao, Ester A and Pearson, Gareth Anthony and Marques, João Carlos JCM and Caçador, Isabel and Duarte, Carlos M. and Jüterbock, Alexander and Gazeau, Frédéric and Tuya, Fernando and Zimmer, Martin and Duarte, Bernardo and Martins, Irene and Rosa, Rui and Matos, Ana Rita and Roleda, Michael Y and Reusch, Thorsten B H and Engelen, Aschwin Hillebrand and Serrão, Ester A and Pearson, Gareth Anthony and Marques, João Carlos JCM and Caçador, Isabel and Duarte, Carlos M. and Jueterbock, Alexander},\n doi = {10.3389/FMARS.2018.00190},\n journal = {Frontiers in Marine Science},\n number = {5}\n}
\n
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\n Marine macrophytes are the foundation of algal forests and seagrass meadows¬–some of the most productive and diverse coastal marine ecosystems on the planet. These ecosystems provide nursery grounds and food for fish and invertebrates, coastline protection from erosion, carbon sequestration, and nutrient fixation. For marine macrophytes, temperature is generally the most important range limiting factor, and ocean warming is considered the most severe threat among global climate change factors. ocean warming induced losses of dominant macrophytes along their equatorial range edges, as well as range extensions into polar regions, are predicted and already documented. While adaptive evolution based on genetic change is considered too slow to keep pace with the increasing rate of anthropogenic environmental changes, rapid adaptation may come about through a set of non-genetic mechanisms involving the functional composition of the associated microbiome, as well as epigenetic modification of the genome and its regulatory effect on gene expression and the activity of transposable elements. While research in terrestrial plants demonstrates that the integration of non-genetic mechanisms provide a more holistic picture of a species' evolutionary potential, research in marine systems is lagging behind. Here, we aim to review the potential of marine macrophytes to acclimatize and adapt to major climate change effects via intraspecific variation at the genetic, epigenetic, and microbiome levels. All three levels create phenotypic variation that may either enhance fitness within individuals (plasticity) or be subject to selection and ultimately, adaptation. We review three of the most important phenotypic variations in a climate change context, including physiological variation, variation in propagation success, and in herbivore resistance. Integrating different levels of plasticity, and adaptability into ecological models will allow to obtain a more holistic understanding of trait variation and a realistic assessment of the future performance and distribution of marine macrophytes. Such multi-disciplinary approach that integrates various levels of intraspecific variation, and their effect on phenotypic and physiological variation, is of crucial importance for the effective management and conservation of seagrasses and macroalgae under climate change.\n
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\n  \n 2016\n \n \n (4)\n \n \n
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\n \n\n \n \n \n \n \n \n The genome of the seagrass Zostera marina reveals angiosperm adaptation to the sea.\n \n \n \n \n\n\n \n Olsen, J., L.; Rouzé, P.; Verhelst, B.; Lin, Y.; Bayer, T.; Collen, J.; Dattolo, E.; De Paoli, E.; Dittami, S.; Maumus, F.; Michel, G.; Kersting, A.; Lauritano, C.; Lohaus, R.; Töpel, M.; Tonon, T.; Vanneste, K.; Amirebrahimi, M.; Brakel, J.; Boström, C.; Chovatia, M.; Grimwood, J.; Jenkins, J., W.; Jueterbock, A.; Mraz, A.; Stam, W., T.; Tice, H.; Bornberg-Bauer, E.; Green, P., J.; Pearson, G., a.; Procaccini, G.; Duarte, C., M.; Schmutz, J.; Reusch, T., B., H.; and Van de Peer, Y.\n\n\n \n\n\n\n Nature, 530(7590): 331-335. 2016.\n \n\n\n\n
\n\n\n\n \n \n \"ThePaper\n  \n \n \n \"TheWebsite\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
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@article{\n title = {The genome of the seagrass Zostera marina reveals angiosperm adaptation to the sea},\n type = {article},\n year = {2016},\n pages = {331-335},\n volume = {530},\n websites = {http://dx.doi.org/10.1038/nature16548%5Cnhttp://www.ncbi.nlm.nih.gov/pubmed/26814964%5Cnhttp://www.nature.com/doifinder/10.1038/nature16548},\n publisher = {Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved.},\n day = {27},\n id = {d784f570-e2ae-3fcd-a7d3-2e2bee5cc1d4},\n created = {2016-01-28T20:12:08.000Z},\n accessed = {2016-01-27},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2022-05-19T07:27:01.081Z},\n read = {false},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Olsen2016},\n short_title = {Nature},\n folder_uuids = {1026adb9-2949-4e67-8543-794b839747de,435fbf68-50eb-4ebe-a91f-252cc8cd0d1d,ee87a585-3f57-4313-9413-b96db367fa3d,8bbadeca-7b22-4ceb-ae6a-c59f238a2213,d75e14c9-3630-41d2-8999-5239aa557e08,0fb5a67a-6627-4c5b-95fa-1f6ecc9d8721,3b088370-240e-497b-b1c3-265900b54449,cff78545-e97c-4feb-92f4-524713af7bd5},\n private_publication = {false},\n abstract = {Seagrasses colonized the sea on at least three independent occasions to form the basis of one of the most productive and widespread coastal ecosystems on the planet. Here we report the genome of Zostera marina (L.), the first, to our knowledge, marine angiosperm to be fully sequenced. This reveals unique insights into the genomic losses and gains involved in achieving the structural and physiological adaptations required for its marine lifestyle, arguably the most severe habitat shift ever accomplished by flowering plants. Key angiosperm innovations that were lost include the entire repertoire of stomatal genes, genes involved in the synthesis of terpenoids and ethylene signalling, and genes for ultraviolet protection and phytochromes for far-red sensing. Seagrasses have also regained functions enabling them to adjust to full salinity. Their cell walls contain all of the polysaccharides typical of land plants, but also contain polyanionic, low-methylated pectins and sulfated galactans, a feature shared with the cell walls of all macroalgae and that is important for ion homoeostasis, nutrient uptake and O2/CO2 exchange through leaf epidermal cells. The Z. marina genome resource will markedly advance a wide range of functional ecological studies from adaptation of marine ecosystems under climate warming, to unravelling the mechanisms of osmoregulation under high salinities that may further inform our understanding of the evolution of salt tolerance in crop plants.},\n bibtype = {article},\n author = {Olsen, Jeanine L and Rouzé, Pierre and Verhelst, Bram and Lin, Yao-cheng and Bayer, Till and Collen, Jonas and Dattolo, Emanuela and De Paoli, Emanuele and Dittami, Simon and Maumus, Florian and Michel, Gurvan and Kersting, Anna and Lauritano, Chiara and Lohaus, Rolf and Töpel, Mats and Tonon, Thierry and Vanneste, Kevin and Amirebrahimi, Mojgan and Brakel, Janina and Boström, Christoffer and Chovatia, Mansi and Grimwood, Jane and Jenkins, Jerry W and Jueterbock, Alexander and Mraz, Amy and Stam, Wytze T and Tice, Hope and Bornberg-Bauer, Erich and Green, Pamela J and Pearson, Gareth a and Procaccini, Gabriele and Duarte, Carlos M and Schmutz, Jeremy and Reusch, Thorsten B H and Van de Peer, Yves},\n doi = {10.1038/nature16548},\n journal = {Nature},\n number = {7590}\n}
\n
\n\n\n
\n Seagrasses colonized the sea on at least three independent occasions to form the basis of one of the most productive and widespread coastal ecosystems on the planet. Here we report the genome of Zostera marina (L.), the first, to our knowledge, marine angiosperm to be fully sequenced. This reveals unique insights into the genomic losses and gains involved in achieving the structural and physiological adaptations required for its marine lifestyle, arguably the most severe habitat shift ever accomplished by flowering plants. Key angiosperm innovations that were lost include the entire repertoire of stomatal genes, genes involved in the synthesis of terpenoids and ethylene signalling, and genes for ultraviolet protection and phytochromes for far-red sensing. Seagrasses have also regained functions enabling them to adjust to full salinity. Their cell walls contain all of the polysaccharides typical of land plants, but also contain polyanionic, low-methylated pectins and sulfated galactans, a feature shared with the cell walls of all macroalgae and that is important for ion homoeostasis, nutrient uptake and O2/CO2 exchange through leaf epidermal cells. The Z. marina genome resource will markedly advance a wide range of functional ecological studies from adaptation of marine ecosystems under climate warming, to unravelling the mechanisms of osmoregulation under high salinities that may further inform our understanding of the evolution of salt tolerance in crop plants.\n
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\n \n\n \n \n \n \n \n \n Variation in thermal stress response in two populations of the brown seaweed, Fucus distichus , from the Arctic and subarctic intertidal.\n \n \n \n \n\n\n \n Smolina, I.; Kollias, S.; Jueterbock, A.; Coyer, J., A.; and Hoarau, G.\n\n\n \n\n\n\n Royal Society Open Science, 3(1): 150429. 1 2016.\n \n\n\n\n
\n\n\n\n \n \n \"VariationPaper\n  \n \n \n \"VariationWebsite\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
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@article{\n title = {Variation in thermal stress response in two populations of the brown seaweed, Fucus distichus , from the Arctic and subarctic intertidal},\n type = {article},\n year = {2016},\n keywords = {ecology,molecular biology,physiology},\n pages = {150429},\n volume = {3},\n websites = {http://rsos.royalsocietypublishing.org/lookup/doi/10.1098/rsos.150429},\n month = {1},\n publisher = {The Royal Society},\n day = {1},\n id = {f4c221fe-31b0-348d-8d01-af713441f2ff},\n created = {2017-01-13T07:51:57.000Z},\n accessed = {2016-01-13},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2017-11-06T15:28:35.954Z},\n read = {true},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Smolina2016a},\n language = {en},\n folder_uuids = {411abe84-c928-4948-b699-7968c065df5b,d75e14c9-3630-41d2-8999-5239aa557e08,cff78545-e97c-4feb-92f4-524713af7bd5},\n private_publication = {false},\n abstract = {It is unclear whether intertidal organisms are ‘preadapted’ to cope with the increase of temperature and temperature variability or if they are currently at their thermal tolerance limits. To address the dichotomy, we focused on an important ecosystem engineer of the Arctic intertidal rocky shores, the seaweed Fucus distichus and investigated thermal stress responses of two populations from different temperature regimes (Svalbard and Kirkenes, Norway). Thermal stress responses at 20°C, 24°C and 28°C were assessed by measuring photosynthetic performance and expression of heat shock protein (HSP) genes (shsp, hsp90 and hsp70). We detected population-specific responses between the two populations of F. distichus, as the Svalbard population revealed a smaller decrease in photosynthesis performance but a greater activation of molecular defence mechanisms (indicated by a wider repertoire of HSP genes and their stronger upregulation) compared with the Kirkenes population. Although the temperatures used in our study exceed temperatures encountered by F. distichus at the study sites, we believe response to these temperatures may serve as a proxy for the species’ potential to respond to climate-related stresses.},\n bibtype = {article},\n author = {Smolina, Irina and Kollias, Spyros and Jueterbock, Alexander and Coyer, James A. and Hoarau, Galice},\n doi = {10.1098/rsos.150429},\n journal = {Royal Society Open Science},\n number = {1}\n}
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\n\n\n
\n It is unclear whether intertidal organisms are ‘preadapted’ to cope with the increase of temperature and temperature variability or if they are currently at their thermal tolerance limits. To address the dichotomy, we focused on an important ecosystem engineer of the Arctic intertidal rocky shores, the seaweed Fucus distichus and investigated thermal stress responses of two populations from different temperature regimes (Svalbard and Kirkenes, Norway). Thermal stress responses at 20°C, 24°C and 28°C were assessed by measuring photosynthetic performance and expression of heat shock protein (HSP) genes (shsp, hsp90 and hsp70). We detected population-specific responses between the two populations of F. distichus, as the Svalbard population revealed a smaller decrease in photosynthesis performance but a greater activation of molecular defence mechanisms (indicated by a wider repertoire of HSP genes and their stronger upregulation) compared with the Kirkenes population. Although the temperatures used in our study exceed temperatures encountered by F. distichus at the study sites, we believe response to these temperatures may serve as a proxy for the species’ potential to respond to climate-related stresses.\n
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\n \n\n \n \n \n \n \n \n The fate of the Arctic seaweed Fucus distichus under climate change: An ecological niche modeling approach.\n \n \n \n \n\n\n \n Jueterbock, A.; Smolina, I.; Coyer, J., A.; and Hoarau, G.\n\n\n \n\n\n\n Ecology and Evolution, 6(6): 1712-1724. 2016.\n \n\n\n\n
\n\n\n\n \n \n \"ThePaper\n  \n \n \n \"TheWebsite\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@article{\n title = {The fate of the Arctic seaweed Fucus distichus under climate change: An ecological niche modeling approach},\n type = {article},\n year = {2016},\n keywords = {Arctic ecosystem,Cold-temperate,Competition,Hybridization,Intertidal macroalgae,Key species,Rocky intertidal},\n pages = {1712-1724},\n volume = {6},\n websites = {http://doi.wiley.com/10.1002/ece3.2001},\n day = {16},\n id = {947daa3b-6580-3596-a5a6-7233600dccf2},\n created = {2020-04-23T18:58:06.853Z},\n accessed = {2016-02-18},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2022-05-19T07:27:04.324Z},\n read = {true},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Jueterbock2016},\n folder_uuids = {822b003f-38e2-4815-a2e6-50db5d51a5ef,411abe84-c928-4948-b699-7968c065df5b,ee87a585-3f57-4313-9413-b96db367fa3d,d75e14c9-3630-41d2-8999-5239aa557e08,0fb5a67a-6627-4c5b-95fa-1f6ecc9d8721,cff78545-e97c-4feb-92f4-524713af7bd5},\n private_publication = {false},\n abstract = {Rising temperatures are predicted to melt all perennial ice cover in the Arctic by the end of this century, thus opening up suitable habitat for temperate and subarctic species. Canopy-forming seaweeds provide an ideal system to predict the potential impact of climate-change on rocky-shore ecosystems, given their direct dependence on temperature and their key role in the ecological system. Our primary objective was to predict the climate-change induced range-shift of Fucus distichus, the dominant canopy-forming macroalga in the Arctic and subarctic rocky intertidal. More specifically, we asked: which Arctic/subarctic and cold-temperate shores of the northern hemisphere will display the greatest distributional change of F. distichus and how will this affect niche overlap with seaweeds from temperate regions? We used the program MAXENT to develop correlative ecological niche models with dominant range-limiting factors and 169 occurrence records. Using three climate-change scenarios, we projected habitat suitability of F. distichus - and its niche overlap with three dominant temperate macroalgae - until year 2200. Maximum sea surface temperature was identified as the most important factor in limiting the fundamental niche of F. distichus. Rising temperatures were predicted to have low impact on the species' southern distribution limits, but to shift its northern distribution limits poleward into the high Arctic. In cold-temperate to subarctic regions, new areas of niche overlap were predicted between F. distichus and intertidal macroalgae immigrating from the south. While climate-change threatens intertidal seaweeds in warm-temperate regions, seaweed meadows will likely flourish in the Arctic intertidal. Although this enriches biodiversity and opens up new seaweed-harvesting grounds, it will also trigger unpredictable changes in the structure and functioning of the Arctic intertidal ecosystem.},\n bibtype = {article},\n author = {Jueterbock, Alexander and Smolina, Irina and Coyer, James A. and Hoarau, Galice},\n doi = {10.1002/ece3.2001},\n journal = {Ecology and Evolution},\n number = {6}\n}
\n
\n\n\n
\n Rising temperatures are predicted to melt all perennial ice cover in the Arctic by the end of this century, thus opening up suitable habitat for temperate and subarctic species. Canopy-forming seaweeds provide an ideal system to predict the potential impact of climate-change on rocky-shore ecosystems, given their direct dependence on temperature and their key role in the ecological system. Our primary objective was to predict the climate-change induced range-shift of Fucus distichus, the dominant canopy-forming macroalga in the Arctic and subarctic rocky intertidal. More specifically, we asked: which Arctic/subarctic and cold-temperate shores of the northern hemisphere will display the greatest distributional change of F. distichus and how will this affect niche overlap with seaweeds from temperate regions? We used the program MAXENT to develop correlative ecological niche models with dominant range-limiting factors and 169 occurrence records. Using three climate-change scenarios, we projected habitat suitability of F. distichus - and its niche overlap with three dominant temperate macroalgae - until year 2200. Maximum sea surface temperature was identified as the most important factor in limiting the fundamental niche of F. distichus. Rising temperatures were predicted to have low impact on the species' southern distribution limits, but to shift its northern distribution limits poleward into the high Arctic. In cold-temperate to subarctic regions, new areas of niche overlap were predicted between F. distichus and intertidal macroalgae immigrating from the south. While climate-change threatens intertidal seaweeds in warm-temperate regions, seaweed meadows will likely flourish in the Arctic intertidal. Although this enriches biodiversity and opens up new seaweed-harvesting grounds, it will also trigger unpredictable changes in the structure and functioning of the Arctic intertidal ecosystem.\n
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\n \n\n \n \n \n \n \n \n Phylogeographic differentiation versus transcriptomic adaptation to warm temperatures in Zostera marina, a globally important seagrass.\n \n \n \n \n\n\n \n Jueterbock, A.; Franssen, S., U.; Bergmann, N.; Gu, J.; Coyer, J., A.; Reusch, T., B., H.; Bornberg-Bauer, E.; and Olsen, J., L.\n\n\n \n\n\n\n Molecular Ecology, 25(21): 5396-5411. 2016.\n \n\n\n\n
\n\n\n\n \n \n \"PhylogeographicPaper\n  \n \n \n \"PhylogeographicWebsite\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
\n
@article{\n title = {Phylogeographic differentiation versus transcriptomic adaptation to warm temperatures in Zostera marina, a globally important seagrass},\n type = {article},\n year = {2016},\n keywords = {RNAseq,common-garden experiment,common‐garden experiment,differential expression,global warming,heatwave,transcriptomics},\n pages = {5396-5411},\n volume = {25},\n websites = {http://doi.wiley.com/10.1111/mec.13829},\n id = {15714a82-ac08-3ed2-98e4-35981a851dbc},\n created = {2020-04-23T18:58:09.967Z},\n accessed = {2016-10-25},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2022-05-19T07:27:04.711Z},\n read = {true},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Jueterbock2016a},\n folder_uuids = {1026adb9-2949-4e67-8543-794b839747de,124d8258-2fe5-4ac2-8f9d-dc470e7396cc,0fb5a67a-6627-4c5b-95fa-1f6ecc9d8721,cff78545-e97c-4feb-92f4-524713af7bd5},\n private_publication = {false},\n abstract = {Populations distributed across a broad thermal cline are instrumental in addressing adaptation to increasing temperatures under global warming. Using a space-for-time substitution design, we tested for parallel adaptation to warm temperatures along two independent thermal clines in Zostera marina, the most widely distributed seagrass in the temperate Northern Hemisphere. A North–South pair of populations was sampled along the European and North American coasts and exposed to a simulated heatwave in a common-garden mesocosm. Transcriptomic responses under control, heat stress and recovery were recorded in 99 RNAseq libraries with ~13 000 uniquely annotated, expressed genes. We corrected for phylogenetic differentiation among populations to discriminate neutral from adaptive differentiation. The two southern populations recovered faster from heat stress and showed parallel transcriptomic differentiation, as compared with northern populations. Among 2389 differentially expressed genes, 21 exceeded neutral expectations and were likely involved in parallel adaptation to warm temperatures. However, the strongest differentiation following phylogenetic correction was between the three Atlantic populations and the Mediterranean population with 128 of 4711 differentially expressed genes exceeding neutral expectations. Although adaptation to warm temperatures is expected to reduce sensitivity to heatwaves, the continued resistance of seagrass to further anthropogenic stresses may be impaired by heat-induced downregulation of genes related to photosynthesis, pathogen defence and stress tolerance.},\n bibtype = {article},\n author = {Jueterbock, A. and Franssen, S. U. and Bergmann, N. and Gu, J. and Coyer, J. A. and Reusch, T. B.H. H. and Bornberg-Bauer, E. and Olsen, J. L.},\n doi = {10.1111/mec.13829},\n journal = {Molecular Ecology},\n number = {21}\n}
\n
\n\n\n
\n Populations distributed across a broad thermal cline are instrumental in addressing adaptation to increasing temperatures under global warming. Using a space-for-time substitution design, we tested for parallel adaptation to warm temperatures along two independent thermal clines in Zostera marina, the most widely distributed seagrass in the temperate Northern Hemisphere. A North–South pair of populations was sampled along the European and North American coasts and exposed to a simulated heatwave in a common-garden mesocosm. Transcriptomic responses under control, heat stress and recovery were recorded in 99 RNAseq libraries with ~13 000 uniquely annotated, expressed genes. We corrected for phylogenetic differentiation among populations to discriminate neutral from adaptive differentiation. The two southern populations recovered faster from heat stress and showed parallel transcriptomic differentiation, as compared with northern populations. Among 2389 differentially expressed genes, 21 exceeded neutral expectations and were likely involved in parallel adaptation to warm temperatures. However, the strongest differentiation following phylogenetic correction was between the three Atlantic populations and the Mediterranean population with 128 of 4711 differentially expressed genes exceeding neutral expectations. Although adaptation to warm temperatures is expected to reduce sensitivity to heatwaves, the continued resistance of seagrass to further anthropogenic stresses may be impaired by heat-induced downregulation of genes related to photosynthesis, pathogen defence and stress tolerance.\n
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\n  \n 2015\n \n \n (1)\n \n \n
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\n \n\n \n \n \n \n \n \n Pre-zygotic isolation in the macroalgal genus Fucus from four contact zones spanning 100-10 000 years: a tale of reinforcement?.\n \n \n \n \n\n\n \n Hoarau, G.; Coyer, J., A.; Giesbers, M., C., W., G.; Jueterbock, A.; and Olsen, J., L.\n\n\n \n\n\n\n Royal Society open science, 2(2): 140538. 2015.\n \n\n\n\n
\n\n\n\n \n \n \"Pre-zygoticPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
\n
@article{\n title = {Pre-zygotic isolation in the macroalgal genus Fucus from four contact zones spanning 100-10 000 years: a tale of reinforcement?},\n type = {article},\n year = {2015},\n pages = {140538},\n volume = {2},\n publisher = {The Royal Society},\n id = {8d530400-94db-3798-9133-f3cf11dafedd},\n created = {2015-08-04T13:08:32.000Z},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2017-05-20T21:11:00.081Z},\n read = {true},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Hoarau2015},\n source_type = {article},\n private_publication = {false},\n abstract = {Hybrid zones provide an ideal natural experiment to study the selective forces driving evolution of reproductive barriers and speciation. If hybrid offspring are less fit than the parental species, pre-zygotic isolating barriers can evolve and strengthen in response to selection against the hybrids (reinforcement). Four contact zones between the intertidal macroalgae Fucus serratus (Fs) and Fucus distichus (Fd), characterized by varying times of sympatry and order of species introduction provide an opportunity to investigate reinforcement. We examined patterns of hybridization and reproductive isolation between Fs and Fd in: (i) northern Norway (consisting of two natural sites, 10 000 years old), (ii) the Kattegat near Denmark (Fd introduced, nineteenth century) and (iii) Iceland (Fs introduced, nineteenth century). Using 10 microsatellites and chloroplast DNA, we showed that hybridization and introgression decreased with increasing duration of sympatry. The two younger contact zones revealed 13 and 24% hybrids and several F 1 individuals, in contrast to the older contact zone with 2-3% hybrids and an absence of F 1s. Cross-fertilization experiments revealed that the reduction in hybridization in the oldest zone is consistent with increased gametic incompatibility.},\n bibtype = {article},\n author = {Hoarau, G and Coyer, J A and Giesbers, M C W G and Jueterbock, A. and Olsen, J L},\n doi = {10.1098/rsos.140538},\n journal = {Royal Society open science},\n number = {2}\n}
\n
\n\n\n
\n Hybrid zones provide an ideal natural experiment to study the selective forces driving evolution of reproductive barriers and speciation. If hybrid offspring are less fit than the parental species, pre-zygotic isolating barriers can evolve and strengthen in response to selection against the hybrids (reinforcement). Four contact zones between the intertidal macroalgae Fucus serratus (Fs) and Fucus distichus (Fd), characterized by varying times of sympatry and order of species introduction provide an opportunity to investigate reinforcement. We examined patterns of hybridization and reproductive isolation between Fs and Fd in: (i) northern Norway (consisting of two natural sites, 10 000 years old), (ii) the Kattegat near Denmark (Fd introduced, nineteenth century) and (iii) Iceland (Fs introduced, nineteenth century). Using 10 microsatellites and chloroplast DNA, we showed that hybridization and introgression decreased with increasing duration of sympatry. The two younger contact zones revealed 13 and 24% hybrids and several F 1 individuals, in contrast to the older contact zone with 2-3% hybrids and an absence of F 1s. Cross-fertilization experiments revealed that the reduction in hybridization in the oldest zone is consistent with increased gametic incompatibility.\n
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\n  \n 2014\n \n \n (2)\n \n \n
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\n \n\n \n \n \n \n \n \n Thermal stress resistance of the brown alga \\textitFucus serratus along the North-Atlantic coast: Acclimatization potential to climate change.\n \n \n \n \n\n\n \n Jueterbock, A.; Kollias, S.; Smolina, I.; Fernandes, J., M., O.; Coyer, J., A.; Olsen, J., L.; and Hoarau, G.\n\n\n \n\n\n\n Marine Genomics, 13: 27-36. 1 2014.\n \n\n\n\n
\n\n\n\n \n \n \"ThermalPaper\n  \n \n \n \"ThermalWebsite\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
\n
@article{\n title = {Thermal stress resistance of the brown alga \\textitFucus serratus along the North-Atlantic coast: Acclimatization potential to climate change},\n type = {article},\n year = {2014},\n keywords = {Global warming,Heat shock protein,Heat stress,Macroalgae,Photosynthetic performance},\n pages = {27-36},\n volume = {13},\n websites = {http://www.ncbi.nlm.nih.gov/pubmed/24393606},\n month = {1},\n publisher = {Elsevier B.V.},\n id = {e758ab2d-a92f-3536-9bda-a2ebd902fa36},\n created = {2015-08-04T13:03:54.000Z},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2020-04-23T18:59:08.138Z},\n read = {true},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Jueterbock2014},\n source_type = {article},\n folder_uuids = {822b003f-38e2-4815-a2e6-50db5d51a5ef},\n private_publication = {false},\n abstract = {Seaweed-dominated communities are predicted to disappear south of 45° latitude on North-Atlantic rocky shores by 2200 because of climate change. The extent of predicted habitat loss, however, could be mitigated if the seaweeds' physiology is sufficiently plastic to rapidly acclimatize to the warmer temperatures. The main objectives of this study were to identify whether the thermal tolerance of the canopy-forming seaweed Fucus serratus is population-specific and where temperatures are likely to exceed its tolerance limits in the next 200 years. We measured the stress response of seaweed samples from four populations (Norway, Denmark, Brittany and Spain) to common-garden heat stress (20°C-36°C) in both photosynthetic performance and transcriptomic upregulation of heat shock protein genes. The two stress indicators did not correlate and likely measured different cellular components of the stress response, but both indicators revealed population-specific differences, suggesting ecotypic differentiation. Our results confirmed that thermal extremes will regularly reach physiologically stressful levels in Brittany (France) and further south by the end of the 22nd century. Although heat stress resilience in photosynthetic performance was higher at the species' southern distributional edge in Spain, the hsp expression pattern suggested that this edge-population experienced reduced fitness and limited responsiveness to further stressors. Thus, F. serratus may be unable to mitigate its predicted northward shift and may be at high risk to lose its center of genetic diversity and adaptability in Brittany (France). As it is an important intertidal key species, the disappearance of this seaweed will likely trigger major ecological changes in the entire associated ecosystem.},\n bibtype = {article},\n author = {Jueterbock, A and Kollias, S and Smolina, I and Fernandes, J M O and Coyer, J A and Olsen, J L and Hoarau, G},\n doi = {10.1016/j.margen.2013.12.008},\n journal = {Marine Genomics}\n}
\n
\n\n\n
\n Seaweed-dominated communities are predicted to disappear south of 45° latitude on North-Atlantic rocky shores by 2200 because of climate change. The extent of predicted habitat loss, however, could be mitigated if the seaweeds' physiology is sufficiently plastic to rapidly acclimatize to the warmer temperatures. The main objectives of this study were to identify whether the thermal tolerance of the canopy-forming seaweed Fucus serratus is population-specific and where temperatures are likely to exceed its tolerance limits in the next 200 years. We measured the stress response of seaweed samples from four populations (Norway, Denmark, Brittany and Spain) to common-garden heat stress (20°C-36°C) in both photosynthetic performance and transcriptomic upregulation of heat shock protein genes. The two stress indicators did not correlate and likely measured different cellular components of the stress response, but both indicators revealed population-specific differences, suggesting ecotypic differentiation. Our results confirmed that thermal extremes will regularly reach physiologically stressful levels in Brittany (France) and further south by the end of the 22nd century. Although heat stress resilience in photosynthetic performance was higher at the species' southern distributional edge in Spain, the hsp expression pattern suggested that this edge-population experienced reduced fitness and limited responsiveness to further stressors. Thus, F. serratus may be unable to mitigate its predicted northward shift and may be at high risk to lose its center of genetic diversity and adaptability in Brittany (France). As it is an important intertidal key species, the disappearance of this seaweed will likely trigger major ecological changes in the entire associated ecosystem.\n
\n\n\n
\n\n\n
\n \n\n \n \n \n \n \n \n Thermal stress resistance of the brown alga Fucus serratus along the North-Atlantic coast: Acclimatization potential to climate change.\n \n \n \n \n\n\n \n Jueterbock, A.; Kollias, S.; Smolina, I.; Fernandes, J., M., O.; Coyer, J., A.; Olsen, J., L.; and Hoarau, G.\n\n\n \n\n\n\n Marine Genomics, 13(January 2014): 27-36. 1 2014.\n \n\n\n\n
\n\n\n\n \n \n \"ThermalPaper\n  \n \n \n \"ThermalWebsite\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
\n
@article{\n title = {Thermal stress resistance of the brown alga <i>Fucus serratus</i> along the North-Atlantic coast: Acclimatization potential to climate change},\n type = {article},\n year = {2014},\n keywords = {Global warming,Heat shock protein,Heat stress,Macroalgae,Photosynthetic performance},\n pages = {27-36},\n volume = {13},\n websites = {http://www.ncbi.nlm.nih.gov/pubmed/24393606},\n month = {1},\n publisher = {Elsevier B.V.},\n id = {3e7e7fbb-1d48-3f13-86f1-f69fe83067fe},\n created = {2017-01-13T07:51:41.000Z},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2020-04-23T18:59:15.902Z},\n read = {true},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Jueterbock2014},\n source_type = {article},\n folder_uuids = {822b003f-38e2-4815-a2e6-50db5d51a5ef,d75e14c9-3630-41d2-8999-5239aa557e08},\n private_publication = {false},\n abstract = {Seaweed-dominated communities are predicted to disappear south of 45?? latitude on North-Atlantic rocky shores by 2200 because of climate change. The extent of predicted habitat loss, however, could be mitigated if the seaweeds' physiology is sufficiently plastic to rapidly acclimatize to the warmer temperatures. The main objectives of this study were to identify whether the thermal tolerance of the canopy-forming seaweed Fucus serratus is population-specific and where temperatures are likely to exceed its tolerance limits in the next 200 years. We measured the stress response of seaweed samples from four populations (Norway, Denmark, Brittany and Spain) to common-garden heat stress (20. ??C-36. ??C) in both photosynthetic performance and transcriptomic upregulation of heat shock protein genes. The two stress indicators did not correlate and likely measured different cellular components of the stress response, but both indicators revealed population-specific differences, suggesting ecotypic differentiation. Our results confirmed that thermal extremes will regularly reach physiologically stressful levels in Brittany (France) and further south by the end of the 22nd century. Although heat stress resilience in photosynthetic performance was higher at the species' southern distributional edge in Spain, the hsp expression pattern suggested that this edge-population experienced reduced fitness and limited responsiveness to further stressors. Thus, F. serratus may be unable to mitigate its predicted northward shift and may be at high risk to lose its center of genetic diversity and adaptability in Brittany (France). As it is an important intertidal key species, the disappearance of this seaweed will likely trigger major ecological changes in the entire associated ecosystem. ?? 2013 Elsevier B.V.},\n bibtype = {article},\n author = {Jueterbock, Alexander and Kollias, Spyros and Smolina, Irina and Fernandes, Jorge M O and Coyer, James A. and Olsen, Jeanine L. and Hoarau, Galice},\n doi = {10.1016/j.margen.2013.12.008},\n journal = {Marine Genomics},\n number = {January 2014}\n}
\n
\n\n\n
\n Seaweed-dominated communities are predicted to disappear south of 45?? latitude on North-Atlantic rocky shores by 2200 because of climate change. The extent of predicted habitat loss, however, could be mitigated if the seaweeds' physiology is sufficiently plastic to rapidly acclimatize to the warmer temperatures. The main objectives of this study were to identify whether the thermal tolerance of the canopy-forming seaweed Fucus serratus is population-specific and where temperatures are likely to exceed its tolerance limits in the next 200 years. We measured the stress response of seaweed samples from four populations (Norway, Denmark, Brittany and Spain) to common-garden heat stress (20. ??C-36. ??C) in both photosynthetic performance and transcriptomic upregulation of heat shock protein genes. The two stress indicators did not correlate and likely measured different cellular components of the stress response, but both indicators revealed population-specific differences, suggesting ecotypic differentiation. Our results confirmed that thermal extremes will regularly reach physiologically stressful levels in Brittany (France) and further south by the end of the 22nd century. Although heat stress resilience in photosynthetic performance was higher at the species' southern distributional edge in Spain, the hsp expression pattern suggested that this edge-population experienced reduced fitness and limited responsiveness to further stressors. Thus, F. serratus may be unable to mitigate its predicted northward shift and may be at high risk to lose its center of genetic diversity and adaptability in Brittany (France). As it is an important intertidal key species, the disappearance of this seaweed will likely trigger major ecological changes in the entire associated ecosystem. ?? 2013 Elsevier B.V.\n
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\n  \n 2013\n \n \n (4)\n \n \n
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\n \n\n \n \n \n \n \n \n Improving Transferability of Introduced Species' Distribution Models: New Tools to Forecast the Spread of a Highly Invasive Seaweed.\n \n \n \n \n\n\n \n Verbruggen, H.; Tyberghein, L.; Belton, G., S.; Mineur, F.; Jueterbock, A.; Hoarau, G.; Gurgel, C., F., D.; and De Clerck, O.\n\n\n \n\n\n\n PLoS ONE, 8(6): e68337. 2013.\n \n\n\n\n
\n\n\n\n \n \n \"ImprovingPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
\n
@article{\n title = {Improving Transferability of Introduced Species' Distribution Models: New Tools to Forecast the Spread of a Highly Invasive Seaweed},\n type = {article},\n year = {2013},\n pages = {e68337},\n volume = {8},\n publisher = {Public Library of Science},\n id = {a1f498f6-dc15-3f06-8fdd-4800275187e2},\n created = {2015-08-04T13:05:17.000Z},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2017-11-06T15:28:34.420Z},\n read = {false},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Verbruggen2013},\n source_type = {article},\n folder_uuids = {cff78545-e97c-4feb-92f4-524713af7bd5},\n private_publication = {false},\n abstract = {The utility of species distribution models for applications in invasion and global change biology is critically dependent on their transferability between regions or points in time, respectively. We introduce two methods that aim to improve the transferability of presence-only models: density-based occurrence thinning and performance-based predictor selection. We evaluate the effect of these methods along with the impact of the choice of model complexity and geographic background on the transferability of a species distribution model between geographic regions. Our multifactorial experiment focuses on the notorious invasive seaweed Caulerpa cylindracea (previously Caulerpa racemosa var. cylindracea) and uses Maxent, a commonly used presence-only modeling technique. We show that model transferability is markedly improved by appropriate predictor selection, with occurrence thinning, model complexity and background choice having relatively minor effects. The data shows that, if available, occurrence records from the native and invaded regions should be combined as this leads to models with high predictive power while reducing the sensitivity to choices made in the modeling process. The inferred distribution model of Caulerpa cylindracea shows the potential for this species to further spread along the coasts of Western Europe, western Africa and the south coast of Australia.},\n bibtype = {article},\n author = {Verbruggen, Heroen and Tyberghein, Lennert and Belton, Gareth S. and Mineur, Frederic and Jueterbock, Alexander and Hoarau, Galice and Gurgel, C. Frederico D and De Clerck, Olivier},\n doi = {10.1371/journal.pone.0068337},\n journal = {PLoS ONE},\n number = {6}\n}
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\n The utility of species distribution models for applications in invasion and global change biology is critically dependent on their transferability between regions or points in time, respectively. We introduce two methods that aim to improve the transferability of presence-only models: density-based occurrence thinning and performance-based predictor selection. We evaluate the effect of these methods along with the impact of the choice of model complexity and geographic background on the transferability of a species distribution model between geographic regions. Our multifactorial experiment focuses on the notorious invasive seaweed Caulerpa cylindracea (previously Caulerpa racemosa var. cylindracea) and uses Maxent, a commonly used presence-only modeling technique. We show that model transferability is markedly improved by appropriate predictor selection, with occurrence thinning, model complexity and background choice having relatively minor effects. The data shows that, if available, occurrence records from the native and invaded regions should be combined as this leads to models with high predictive power while reducing the sensitivity to choices made in the modeling process. The inferred distribution model of Caulerpa cylindracea shows the potential for this species to further spread along the coasts of Western Europe, western Africa and the south coast of Australia.\n
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\n \n\n \n \n \n \n \n \n Climate change impact on the seaweed Fucus serratus, a key foundational species on North Atlantic rocky shores.\n \n \n \n \n\n\n \n Jueterbock, A.\n\n\n \n\n\n\n Ph.D. Thesis, 2013.\n \n\n\n\n
\n\n\n\n \n \n \"ClimatePaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
\n
@phdthesis{\n title = {Climate change impact on the seaweed Fucus serratus, a key foundational species on North Atlantic rocky shores},\n type = {phdthesis},\n year = {2013},\n city = {8049 Bodø},\n institution = {University of Nordland},\n id = {df8c7f73-6e7a-31a2-974e-f6444f0cd799},\n created = {2015-08-04T13:05:19.000Z},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2018-02-20T09:09:55.495Z},\n read = {true},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Jueterbock2013b},\n source_type = {phdthesis},\n folder_uuids = {cff78545-e97c-4feb-92f4-524713af7bd5},\n private_publication = {false},\n bibtype = {phdthesis},\n author = {Jueterbock, A}\n}
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\n \n\n \n \n \n \n \n \n Genomic divergence between the migratory and stationary ecotypes of Atlantic cod.\n \n \n \n \n\n\n \n Karlsen, B., O.; Klingan, K.; Emblem, Å.; Jørgensen, T., E.; Jueterbock, A.; Furmanek, T.; Hoarau, G.; Johansen, S., D.; Nordeide, J., T.; and Moum, T.\n\n\n \n\n\n\n Molecular Ecology, 22(20): 5098-5111. 2013.\n \n\n\n\n
\n\n\n\n \n \n \"GenomicPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@article{\n title = {Genomic divergence between the migratory and stationary ecotypes of Atlantic cod},\n type = {article},\n year = {2013},\n keywords = {Gadus morhua,adaptive variation,behaviour,next-generation sequencing,population genomics,sympatric divergence},\n pages = {5098-5111},\n volume = {22},\n id = {24e7788e-97a7-3574-8ed9-2dc7b7704e66},\n created = {2015-08-04T13:07:52.000Z},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2017-03-14T04:56:26.716Z},\n read = {true},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Karlsen2013},\n source_type = {article},\n private_publication = {false},\n abstract = {Atlantic cod displays a range of phenotypic and genotypic variations, which includes the differentiation into coastal stationary and offshore migratory types of cod that co-occur in several parts of its distribution range and are often sympatric on the spawning grounds. Differentiation of these ecotypes may involve both historical separation and adaptation to ecologically distinct environments, the genetic basis of which is now beginning to be unravelled. Genomic analyses based on recent sequencing advances are able to document genomic divergence in more detail and may facilitate the exploration of causes and consequences of genome-wide patterns. We examined genomic divergence between the stationary and migratory types of cod in the Northeast Atlantic, using next-generation sequencing of pooled DNA from each of two population samples. Sequence data was mapped to the published cod genome sequence, arranged in more than 6000 scaffolds (611 Mb). We identified 25 divergent scaffolds (26 Mb) with a higher than average gene density, against a backdrop of overall moderate genomic differentiation. Previous findings of localized genomic divergence in three linkage groups were confirmed, including a large (15 Mb) genomic region, which seems to be uniquely involved in the divergence of migratory and stationary cod. The results of the pooled sequencing approach support and extend recent findings based on single-nucleotide polymorphism markers and suggest a high degree of reproductive isolation between stationary and migratory cod in the North-east Atlantic.},\n bibtype = {article},\n author = {Karlsen, Bård O. and Klingan, Kevin and Emblem, Åse and Jørgensen, Tor E. and Jueterbock, Alexander and Furmanek, Tomasz and Hoarau, Galice and Johansen, Steinar D. and Nordeide, Jarle T. and Moum, Truls},\n doi = {10.1111/mec.12454},\n journal = {Molecular Ecology},\n number = {20}\n}
\n
\n\n\n
\n Atlantic cod displays a range of phenotypic and genotypic variations, which includes the differentiation into coastal stationary and offshore migratory types of cod that co-occur in several parts of its distribution range and are often sympatric on the spawning grounds. Differentiation of these ecotypes may involve both historical separation and adaptation to ecologically distinct environments, the genetic basis of which is now beginning to be unravelled. Genomic analyses based on recent sequencing advances are able to document genomic divergence in more detail and may facilitate the exploration of causes and consequences of genome-wide patterns. We examined genomic divergence between the stationary and migratory types of cod in the Northeast Atlantic, using next-generation sequencing of pooled DNA from each of two population samples. Sequence data was mapped to the published cod genome sequence, arranged in more than 6000 scaffolds (611 Mb). We identified 25 divergent scaffolds (26 Mb) with a higher than average gene density, against a backdrop of overall moderate genomic differentiation. Previous findings of localized genomic divergence in three linkage groups were confirmed, including a large (15 Mb) genomic region, which seems to be uniquely involved in the divergence of migratory and stationary cod. The results of the pooled sequencing approach support and extend recent findings based on single-nucleotide polymorphism markers and suggest a high degree of reproductive isolation between stationary and migratory cod in the North-east Atlantic.\n
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\n \n\n \n \n \n \n \n \n Climate change impact on seaweed meadow distribution in the North Atlantic rocky intertidal.\n \n \n \n \n\n\n \n Jueterbock, A.; Tyberghein, L.; Verbruggen, H.; Coyer, J., A.; Olsen, J., L.; and Hoarau, G.\n\n\n \n\n\n\n Ecology and Evolution, 3(5): 1356-1373. 2013.\n \n\n\n\n
\n\n\n\n \n \n \"ClimatePaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
\n
@article{\n title = {Climate change impact on seaweed meadow distribution in the North Atlantic rocky intertidal},\n type = {article},\n year = {2013},\n keywords = {Ascophyllum,Ecological niche models,Fucus,Geographic distribution,Global warming,Intertidal,Macroalgae,Species distribution models},\n pages = {1356-1373},\n volume = {3},\n id = {b563e9fd-e231-35dd-bc64-132f6dcef60d},\n created = {2021-01-22T08:34:39.990Z},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2021-09-17T18:43:06.493Z},\n read = {true},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Jueterbock2013},\n private_publication = {false},\n abstract = {The North-Atlantic has warmed faster than all other ocean basins and climate change scenarios predict sea surface temperature isotherms to shift up to 600 km northwards by the end of the 21st century. The pole-ward shift has already begun for many temperate seaweed species that are important intertidal foundation species. We asked the question: Where will climate change have the greatest impact on three foundational, macroalgal species that occur along North-Atlantic shores: Fucus serratus, Fucus vesiculosus, and Ascophyllum nodosum? To predict distributional changes of these key species under three IPCC (Intergovernmental Panel on Climate Change) climate change scenarios (A2, A1B, and B1) over the coming two centuries, we generated Ecological Niche Models with the program MAXENT. Model predictions suggest that these three species will shift northwards as an assemblage or "unit" and that phytogeographic changes will be most pronounced in the southern Arctic and the southern temperate provinces. Our models predict that Arctic shores in Canada, Greenland, and Spitsbergen will become suitable for all three species by 2100. Shores south of 45° North will become unsuitable for at least two of the three focal species on both the Northwest- and Northeast-Atlantic coasts by 2200. If these foundational species are unable to adapt to the rising temperatures, they will lose their centers of genetic diversity and their loss will trigger an unpredictable shift in the North-Atlantic intertidal ecosystem. © 2013 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd.},\n bibtype = {article},\n author = {Jueterbock, Alexander and Tyberghein, Lennert and Verbruggen, Heroen and Coyer, James A. and Olsen, Jeanine L. and Hoarau, Galice},\n doi = {10.1002/ece3.541},\n journal = {Ecology and Evolution},\n number = {5}\n}
\n
\n\n\n
\n The North-Atlantic has warmed faster than all other ocean basins and climate change scenarios predict sea surface temperature isotherms to shift up to 600 km northwards by the end of the 21st century. The pole-ward shift has already begun for many temperate seaweed species that are important intertidal foundation species. We asked the question: Where will climate change have the greatest impact on three foundational, macroalgal species that occur along North-Atlantic shores: Fucus serratus, Fucus vesiculosus, and Ascophyllum nodosum? To predict distributional changes of these key species under three IPCC (Intergovernmental Panel on Climate Change) climate change scenarios (A2, A1B, and B1) over the coming two centuries, we generated Ecological Niche Models with the program MAXENT. Model predictions suggest that these three species will shift northwards as an assemblage or \"unit\" and that phytogeographic changes will be most pronounced in the southern Arctic and the southern temperate provinces. Our models predict that Arctic shores in Canada, Greenland, and Spitsbergen will become suitable for all three species by 2100. Shores south of 45° North will become unsuitable for at least two of the three focal species on both the Northwest- and Northeast-Atlantic coasts by 2200. If these foundational species are unable to adapt to the rising temperatures, they will lose their centers of genetic diversity and their loss will trigger an unpredictable shift in the North-Atlantic intertidal ecosystem. © 2013 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd.\n
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\n  \n 2011\n \n \n (1)\n \n \n
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\n \n\n \n \n \n \n \n \n Genomic scans detect signatures of selection along a salinity gradient in populations of the intertidal seaweed \\textitFucus serratus on a 12 km scale.\n \n \n \n \n\n\n \n Coyer, J., A.; Hoarau, G.; Pearson, G.; Mota, C.; Jueterbock, A.; Alpermann, T.; John, U.; and Olsen, J., L.\n\n\n \n\n\n\n Marine Genomics, 4(1): 41-49. 2011.\n \n\n\n\n
\n\n\n\n \n \n \"GenomicPaper\n  \n \n \n \"GenomicWebsite\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
\n
@article{\n title = {Genomic scans detect signatures of selection along a salinity gradient in populations of the intertidal seaweed \\textitFucus serratus on a 12 km scale},\n type = {article},\n year = {2011},\n keywords = {AFLP,Anonymous-linked microsatellites,EST-linked microsatellites,Fucus,Fucus serratus,Outlier loci,Salinity stress,genome scan,salinity,seaweed,selection},\n pages = {41-49},\n volume = {4},\n websites = {http://dx.doi.org/10.1016/j.margen.2010.12.003},\n publisher = {Elsevier},\n id = {c07f640a-1cb7-3b4f-9053-bcf8520caca8},\n created = {2020-06-15T12:31:15.399Z},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2020-06-15T12:31:30.558Z},\n read = {true},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Coyer2011d},\n source_type = {article},\n notes = {<b>From Duplicate 1 (<i>Genomic scans detect signatures of selection along a salinity gradient in populations of the intertidal seaweed Fucus serratus on a 12km scale</i> - Coyer, J. A.; Hoarau, G.; Pearson, G.; Mota, C.; Jueterbock, A.; Alpermann, T.; John, U.; Olsen, J. L.)<br/></b><br/><b>From Duplicate 1 (<i>Genomic scans detect signatures of selection along a salinity gradient in populations of the intertidal seaweed \\textitFucus serratus on a 12 km scale</i> - Coyer, J A; Hoarau, G; Pearson, G; Mota, C; Jueterbock, A; Alpermann, T; John, U; Olsen, J L)<br/></b><br/>From Duplicate 3 ( Genomic scans detect signatures of selection along a salinity gradient in populations of the intertidal seaweed Fucus serratus on a 12km scale - Coyer, J A; Hoarau, G; Pearson, G; Mota, C; Jüterbock, A; Alpermann, T; John, U; Olsen, J L )<br/><br/><b>From Duplicate 2 (<i>Genomic scans detect signatures of selection along a salinity gradient in populations of the intertidal seaweed \\textitFucus serratus on a 12 km scale</i> - Coyer, J A; Hoarau, G; Pearson, G; Mota, C; Jueterbock, A; Alpermann, T; John, U; Olsen, J L)<br/></b><br/>From Duplicate 3 ( Genomic scans detect signatures of selection along a salinity gradient in populations of the intertidal seaweed Fucus serratus on a 12km scale - Coyer, J A; Hoarau, G; Pearson, G; Mota, C; Jüterbock, A; Alpermann, T; John, U; Olsen, J L )},\n folder_uuids = {124d8258-2fe5-4ac2-8f9d-dc470e7396cc},\n private_publication = {false},\n abstract = {Detecting natural selection in wild populations is a central challenge in evolutionary biology and genomic scans are an important means of detecting allele frequencies that deviate from neutral expectations among marker loci. We used nine anonymous and 15 EST-linked microsatellites, 362 AFLP loci, and several neutrality tests, to identify outlier loci when comparing four populations of the seaweed Fucus serratus spaced along a 12 km intertidal shore with a steep salinity gradient. Under criteria of at least two significant tests in at least two population pairs, three EST-derived and three anonymous loci revealed putative signatures of selection. Anonymous locus FsB113 was a consistent outlier when comparing least saline to fully marine sites. Locus F37 was an outlier when comparing the least saline to more saline areas, and was annotated as a polyol transporter/putative mannitol transporter - an important sugar-alcohol associated with osmoregulation by brown algae. The remaining loci could not be annotated using six different data bases. Exclusion of microsatellite outlier loci did not change either the degree or direction of differentiation among populations. In one outlier test, the number of AFLP outlier loci increased as the salinity differences between population pairs increased (up to 14); only four outliers were detected with the second test and only one was consistent with both tests. Consistency may be improved with a much more rigorous approach to replication and/or may be dependent upon the class of marker used. ?? 2010 Elsevier B.V.},\n bibtype = {article},\n author = {Coyer, J. A. and Hoarau, G. and Pearson, G. and Mota, C. and Jueterbock, A. and Alpermann, T. and John, U. and Olsen, J. L.},\n doi = {10.1016/j.margen.2010.12.003},\n journal = {Marine Genomics},\n number = {1}\n}
\n
\n\n\n
\n Detecting natural selection in wild populations is a central challenge in evolutionary biology and genomic scans are an important means of detecting allele frequencies that deviate from neutral expectations among marker loci. We used nine anonymous and 15 EST-linked microsatellites, 362 AFLP loci, and several neutrality tests, to identify outlier loci when comparing four populations of the seaweed Fucus serratus spaced along a 12 km intertidal shore with a steep salinity gradient. Under criteria of at least two significant tests in at least two population pairs, three EST-derived and three anonymous loci revealed putative signatures of selection. Anonymous locus FsB113 was a consistent outlier when comparing least saline to fully marine sites. Locus F37 was an outlier when comparing the least saline to more saline areas, and was annotated as a polyol transporter/putative mannitol transporter - an important sugar-alcohol associated with osmoregulation by brown algae. The remaining loci could not be annotated using six different data bases. Exclusion of microsatellite outlier loci did not change either the degree or direction of differentiation among populations. In one outlier test, the number of AFLP outlier loci increased as the salinity differences between population pairs increased (up to 14); only four outliers were detected with the second test and only one was consistent with both tests. Consistency may be improved with a much more rigorous approach to replication and/or may be dependent upon the class of marker used. ?? 2010 Elsevier B.V.\n
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\n  \n 2010\n \n \n (2)\n \n \n
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\n \n\n \n \n \n \n \n \n Population dynamics of the periwinkle Littorina littorea in the East Frisian Wadden Sea.\n \n \n \n \n\n\n \n Jueterbock, A.\n\n\n \n\n\n\n Ph.D. Thesis, 1 2010.\n \n\n\n\n
\n\n\n\n \n \n \"PopulationPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n\n\n\n
\n
@phdthesis{\n title = {Population dynamics of the periwinkle Littorina littorea in the East Frisian Wadden Sea},\n type = {phdthesis},\n year = {2010},\n keywords = {North Sea · Wadden Sea · Aggregation · Behavioral},\n month = {1},\n city = {Metjendorfer Landstra\\"se 23c, 26215 Wiefelstede},\n institution = {Carl von Ossietzky Universität Oldenburg},\n id = {4223df4c-205a-3404-a8fb-518fe05783af},\n created = {2017-05-21T10:09:15.032Z},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2017-05-21T10:12:27.031Z},\n read = {true},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Jueterbock2010a},\n source_type = {mastersthesis},\n private_publication = {false},\n abstract = { Populations of marine species get connected by panmixis fol- lowing larval dispersal. Recent studies found that populations of several marine fish and invertebrate species were more isolated than their dispersal potential would predict. The aim of this study was to examine the role of spatial distance, hydrodynamics and behav- ior for population connectivity of the intertidal gastropod Littorina littorea. Eight samples (≥ 50 ind.) were taken on four islands in the East Frisian Wadden Sea (EFWS), Germany and one (55 ind.) from Woods Hole, USA. Larval dispersal in the EFWS was simulated us- ing a numerical modeling system. Five polymorphic microsatellite loci were used to examine realized genetic exchange. In the labo- ratory, it was tested whether conspecifics of different populations randomly mix in aggregations and whether they can discriminate water borne odors of the own versus another population in flumes. Shell characteristics were recorded and evaluated using a discrimi- nant analysis. In the EFWS, passive local larval retention seems im- possible. Whereas none of the EFWS populations were genetically differentiated (average D est ≤ 0. 011, p ≥ 0. 185), the North Ameri- can population was significantly different from all of them (Average D est ≥ 0. 033, p ≤ 0. 008). Periwinkles preferred to aggregate with conspecifics of the own population (p ≤ 0. 1) in six of 17 tests (more than could be expected by chance, p < 0. 001), but they were not attracted to any water borne odors (p > 0. 1). Morphological differ- entiation was found as well among EFWS populations (p < 0. 001) as between them and the North American one (p < 0. 001). This study could show for the first time that periwinkles discriminate between conspecifics from the own versus other populations. This suggests that populations differ intrinsically. When aggregation preferences translate into mating preferences, the homogenizing effect of larval dispersal within the EFWS would be countered. Assuming that across-Atlantic exchange remains low, L. littorea might give birth to two new species.},\n bibtype = {phdthesis},\n author = {Jueterbock, A}\n}
\n
\n\n\n
\n Populations of marine species get connected by panmixis fol- lowing larval dispersal. Recent studies found that populations of several marine fish and invertebrate species were more isolated than their dispersal potential would predict. The aim of this study was to examine the role of spatial distance, hydrodynamics and behav- ior for population connectivity of the intertidal gastropod Littorina littorea. Eight samples (≥ 50 ind.) were taken on four islands in the East Frisian Wadden Sea (EFWS), Germany and one (55 ind.) from Woods Hole, USA. Larval dispersal in the EFWS was simulated us- ing a numerical modeling system. Five polymorphic microsatellite loci were used to examine realized genetic exchange. In the labo- ratory, it was tested whether conspecifics of different populations randomly mix in aggregations and whether they can discriminate water borne odors of the own versus another population in flumes. Shell characteristics were recorded and evaluated using a discrimi- nant analysis. In the EFWS, passive local larval retention seems im- possible. Whereas none of the EFWS populations were genetically differentiated (average D est ≤ 0. 011, p ≥ 0. 185), the North Ameri- can population was significantly different from all of them (Average D est ≥ 0. 033, p ≤ 0. 008). Periwinkles preferred to aggregate with conspecifics of the own population (p ≤ 0. 1) in six of 17 tests (more than could be expected by chance, p < 0. 001), but they were not attracted to any water borne odors (p > 0. 1). Morphological differ- entiation was found as well among EFWS populations (p < 0. 001) as between them and the North American one (p < 0. 001). This study could show for the first time that periwinkles discriminate between conspecifics from the own versus other populations. This suggests that populations differ intrinsically. When aggregation preferences translate into mating preferences, the homogenizing effect of larval dispersal within the EFWS would be countered. Assuming that across-Atlantic exchange remains low, L. littorea might give birth to two new species.\n
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\n \n\n \n \n \n \n \n \n Calculations of population differentiation based on GST and D: Forget GST but not all of statistics.\n \n \n \n \n\n\n \n Gerlach, G.; Jueterbock, A.; Kraemer, P.; Deppermann, J.; and Harmand, P.\n\n\n \n\n\n\n Molecular Ecology, 19(18): 3845-3852. 9 2010.\n \n\n\n\n
\n\n\n\n \n \n \"CalculationsPaper\n  \n \n \n \"CalculationsWebsite\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@article{\n title = {Calculations of population differentiation based on G<sub>ST</sub> and D: Forget G<sub>ST</sub> but not all of statistics},\n type = {article},\n year = {2010},\n keywords = {D,GST,genetic differentiation,population genetics},\n pages = {3845-3852},\n volume = {19},\n websites = {http://europepmc.org/abstract/med/20735737,http://doi.wiley.com/10.1111/j.1365-294X.2010.04784.x},\n month = {9},\n id = {7f310747-b4f4-3ff0-b33b-740c7aafbe8c},\n created = {2021-05-17T20:44:05.017Z},\n accessed = {2017-01-17},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2021-05-17T20:44:23.684Z},\n read = {true},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Gerlach2010},\n source_type = {article},\n folder_uuids = {822b003f-38e2-4815-a2e6-50db5d51a5ef,328d8948-794e-4654-a48b-724fbbbad8fb},\n private_publication = {false},\n abstract = {GST-values and its relatives (FST) belong to the most used parameters to define genetic differences between populations. Originally, they were developed for allozymes with very low number of alleles. Using highly polymorphic microsatellite markers it was often puzzling that GST-values were very low but statistically significant. In their papers, Jost (2008) and Hedrick (2005) explained that GST-values do not show genetic differentiation, and Jost suggested calculating D-values instead. Theoretical mathematical considerations are often difficult to follow; therefore, we chose an applied approach comparing two artificial populations with different number of alleles at equal frequencies and known genetic divergence. Our results show that even for more than one allele per population GST-values do not calculate population differentiation correctly; in contrast, D-values do reflect the genetic differentiation indicating that data based on GST-values need to be re-evaluated. In our approach, statistical evaluations remained similar. We provide information about the impact of different sample sizes on D-values in relation to number of alleles and genetic divergence.},\n bibtype = {article},\n author = {Gerlach, Gabriele and Jueterbock, Alexander and Kraemer, Philipp and Deppermann, Jana and Harmand, Peter},\n doi = {10.1111/j.1365-294X.2010.04784.x},\n journal = {Molecular Ecology},\n number = {18}\n}
\n
\n\n\n
\n GST-values and its relatives (FST) belong to the most used parameters to define genetic differences between populations. Originally, they were developed for allozymes with very low number of alleles. Using highly polymorphic microsatellite markers it was often puzzling that GST-values were very low but statistically significant. In their papers, Jost (2008) and Hedrick (2005) explained that GST-values do not show genetic differentiation, and Jost suggested calculating D-values instead. Theoretical mathematical considerations are often difficult to follow; therefore, we chose an applied approach comparing two artificial populations with different number of alleles at equal frequencies and known genetic divergence. Our results show that even for more than one allele per population GST-values do not calculate population differentiation correctly; in contrast, D-values do reflect the genetic differentiation indicating that data based on GST-values need to be re-evaluated. In our approach, statistical evaluations remained similar. We provide information about the impact of different sample sizes on D-values in relation to number of alleles and genetic divergence.\n
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\n  \n undefined\n \n \n (2)\n \n \n
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\n \n\n \n \n \n \n \n \n Adaptation of temperate seagrass to Arctic light relies on seasonal acclimatization of carbon capture and metabolism.\n \n \n \n \n\n\n \n Jueterbock, A.; Duarte, B.; Coyer, J., A.; Olsen, J., L.; Kopp, M.; Smolina, I.; Arnaud-Haond, S.; Hu, Z.; and Hoarau, G.\n\n\n \n\n\n\n Frontiers in Plant Science. .\n \n\n\n\n
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@article{\n title = {Adaptation of temperate seagrass to Arctic light relies on seasonal acclimatization of carbon capture and metabolism},\n type = {article},\n keywords = {5-max,507,7,8,arctic light,carbon capture,climate change,day length,eelgrass,energy storage,min,number of figures,number of words,photosynthesis,respiration},\n id = {d09d3784-403a-309a-af2c-fe49e5103070},\n created = {2021-11-09T08:23:13.755Z},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2021-11-09T08:23:25.792Z},\n read = {false},\n starred = {false},\n authored = {true},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Jueterbock, Alexander and Duarte, Bernardo and Coyer, James A and Olsen, Jeanine L. and Kopp, Martina and Smolina, Irina and Arnaud-Haond, Sophie and Hu, Zi-Min and Hoarau, Galice},\n journal = {Frontiers in Plant Science}\n}
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\n \n\n \n \n \n \n \n \n Genome-scale signatures of adaptive gene expression changes in an invasive seaweed Gracilaria vermiculophylla.\n \n \n \n \n\n\n \n \n\n\n \n\n\n\n . .\n \n\n\n\n
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@article{\n title = {Genome-scale signatures of adaptive gene expression changes in an invasive seaweed Gracilaria vermiculophylla},\n type = {article},\n id = {4aa2cebe-8082-38d6-ad96-43b541308395},\n created = {2022-10-24T11:49:36.477Z},\n file_attached = {true},\n profile_id = {57cbaa4c-3609-3597-b91c-bd12e56638fb},\n last_modified = {2022-11-28T08:52:16.651Z},\n read = {false},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {}\n}
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