Host transcriptomic plasticity and photosymbiotic fidelity underpin Pocillopora acclimatization across thermal regimes in the Pacific Ocean. Armstrong, E. J., Lê-Hoang, J., Carradec, Q., Aury, J., Noel, B., Hume, B. C. C., Voolstra, C. R., Poulain, J., Belser, C., Paz-García, D. A., Cruaud, C., Labadie, K., Da Silva, C., Moulin, C., Boissin, E., Bourdin, G., Iwankow, G., Romac, S., Agostini, S., Banaigs, B., Boss, E., Bowler, C., De Vargas, C., Douville, E., Flores, M., Forcioli, D., Furla, P., Galand, P. E., Gilson, E., Lombard, F., Pesant, S., Reynaud, S., Sullivan, M. B., Sunagawa, S., Thomas, O. P., Troublé, R., Thurber, R. V., Zoccola, D., Planes, S., Allemand, D., & Wincker, P. Nature Communications, 14(1):3056, June, 2023.
Host transcriptomic plasticity and photosymbiotic fidelity underpin Pocillopora acclimatization across thermal regimes in the Pacific Ocean [link]Paper  doi  abstract   bibtex   6 downloads  
Abstract Heat waves are causing declines in coral reefs globally. Coral thermal responses depend on multiple, interacting drivers, such as past thermal exposure, endosymbiont community composition, and host genotype. This makes the understanding of their relative roles in adaptive and/or plastic responses crucial for anticipating impacts of future warming. Here, we extracted DNA and RNA from 102 Pocillopora colonies collected from 32 sites on 11 islands across the Pacific Ocean to characterize host-photosymbiont fidelity and to investigate patterns of gene expression across a historical thermal gradient. We report high host-photosymbiont fidelity and show that coral and microalgal gene expression respond to different drivers. Differences in photosymbiotic association had only weak impacts on host gene expression, which was more strongly correlated with the historical thermal environment, whereas, photosymbiont gene expression was largely determined by microalgal lineage. Overall, our results reveal a three-tiered strategy of thermal acclimatization in Pocillopora underpinned by host-photosymbiont specificity, host transcriptomic plasticity, and differential photosymbiotic association under extreme warming.
@article{armstrong_host_2023,
	title = {Host transcriptomic plasticity and photosymbiotic fidelity underpin {Pocillopora} acclimatization across thermal regimes in the {Pacific} {Ocean}},
	volume = {14},
	issn = {2041-1723},
	url = {https://www.nature.com/articles/s41467-023-38610-6},
	doi = {10.1038/s41467-023-38610-6},
	abstract = {Abstract
            
              Heat waves are causing declines in coral reefs globally. Coral thermal responses depend on multiple, interacting drivers, such as past thermal exposure, endosymbiont community composition, and host genotype. This makes the understanding of their relative roles in adaptive and/or plastic responses crucial for anticipating impacts of future warming. Here, we extracted DNA and RNA from 102
              Pocillopora
              colonies collected from 32 sites on 11 islands across the Pacific Ocean to characterize host-photosymbiont fidelity and to investigate patterns of gene expression across a historical thermal gradient. We report high host-photosymbiont fidelity and show that coral and microalgal gene expression respond to different drivers. Differences in photosymbiotic association had only weak impacts on host gene expression, which was more strongly correlated with the historical thermal environment, whereas, photosymbiont gene expression was largely determined by microalgal lineage. Overall, our results reveal a three-tiered strategy of thermal acclimatization in
              Pocillopora
              underpinned by host-photosymbiont specificity, host transcriptomic plasticity, and differential photosymbiotic association under extreme warming.},
	language = {en},
	number = {1},
	urldate = {2024-09-02},
	journal = {Nature Communications},
	author = {Armstrong, Eric J. and Lê-Hoang, Julie and Carradec, Quentin and Aury, Jean-Marc and Noel, Benjamin and Hume, Benjamin C. C. and Voolstra, Christian R. and Poulain, Julie and Belser, Caroline and Paz-García, David A. and Cruaud, Corinne and Labadie, Karine and Da Silva, Corinne and Moulin, Clémentine and Boissin, Emilie and Bourdin, Guillaume and Iwankow, Guillaume and Romac, Sarah and Agostini, Sylvain and Banaigs, Bernard and Boss, Emmanuel and Bowler, Chris and De Vargas, Colomban and Douville, Eric and Flores, Michel and Forcioli, Didier and Furla, Paola and Galand, Pierre E. and Gilson, Eric and Lombard, Fabien and Pesant, Stéphane and Reynaud, Stéphanie and Sullivan, Matthew B. and Sunagawa, Shinichi and Thomas, Olivier P. and Troublé, Romain and Thurber, Rebecca Vega and Zoccola, Didier and Planes, Serge and Allemand, Denis and Wincker, Patrick},
	month = jun,
	year = {2023},
	pages = {3056},
}
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