Absence of Geographical Structure of Chloroplast DNA Variation in Sallow, Salix Caprea L. Palme, A. E., Semerikov, V., & Lascoux, M. 91(5):465–474. ![Absence of Geographical Structure of Chloroplast DNA Variation in Sallow, Salix Caprea L. [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex In the present study, we have used PCR-RFLP markers to investigate the chloroplast DNA variation in 24 European populations of Salix caprea L. A subset of these populations has also been analysed with chloroplast microsatellites. The main feature of both markers is the absence of a clear geographic structure (GST(PCR-RFLP)=0.090, GST(microsatellites)=-0.017) and high levels of variation within populations. This lack of phylogeographic structure in S. caprea is suggested to be the consequence of the joint action of several factors: (i) presence of intermediate latitude refugia with large population sizes during the last glacial maximum, (ii) a high speed of recolonisation and dispersal ability, (iii) a high mutation rate and (iv) extensive hybridisation with other willow species. In addition to the S. caprea samples, a limited number of individuals from several other Salix species were also analysed with PCR-RFLP: S. cinerea, S. aurita, S. purpurea, S. atrocinerea, S. appendiculata, S. elaeagnos, S. fragilis and S. alba. Many of the haplotypes found in Salix caprea were also detected in S. cinerea, S. aurita, S. purpurea, S. atrocinerea and/ or S. appendiculata but not in S. alba, S. elaeagnos or S. fragilis. Our data suggest that hybridisation and gene flow have occurred within these two groups but not between them.
@article{palmeAbsenceGeographicalStructure2003,
title = {Absence of Geographical Structure of Chloroplast {{DNA}} Variation in Sallow, {{Salix}} Caprea {{L}}.},
author = {Palme, A. E. and Semerikov, V. and Lascoux, M.},
date = {2003-11},
journaltitle = {Heredity},
volume = {91},
pages = {465--474},
issn = {0018-067X},
doi = {10.1038/sj.hdy.6800307},
url = {https://doi.org/10.1038/sj.hdy.6800307},
abstract = {In the present study, we have used PCR-RFLP markers to investigate the chloroplast DNA variation in 24 European populations of Salix caprea L. A subset of these populations has also been analysed with chloroplast microsatellites. The main feature of both markers is the absence of a clear geographic structure (GST(PCR-RFLP)=0.090, GST(microsatellites)=-0.017) and high levels of variation within populations. This lack of phylogeographic structure in S. caprea is suggested to be the consequence of the joint action of several factors: (i) presence of intermediate latitude refugia with large population sizes during the last glacial maximum, (ii) a high speed of recolonisation and dispersal ability, (iii) a high mutation rate and (iv) extensive hybridisation with other willow species. In addition to the S. caprea samples, a limited number of individuals from several other Salix species were also analysed with PCR-RFLP: S. cinerea, S. aurita, S. purpurea, S. atrocinerea, S. appendiculata, S. elaeagnos, S. fragilis and S. alba. Many of the haplotypes found in Salix caprea were also detected in S. cinerea, S. aurita, S. purpurea, S. atrocinerea and/ or S. appendiculata but not in S. alba, S. elaeagnos or S. fragilis. Our data suggest that hybridisation and gene flow have occurred within these two groups but not between them.},
keywords = {*imported-from-citeulike-INRMM,~INRMM-MiD:c-8507731,genetic-variation,geographic-variation,salix-caprea},
number = {5}
}
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A subset of these populations has also been analysed with chloroplast microsatellites. The main feature of both markers is the absence of a clear geographic structure (GST(PCR-RFLP)=0.090, GST(microsatellites)=-0.017) and high levels of variation within populations. This lack of phylogeographic structure in S. caprea is suggested to be the consequence of the joint action of several factors: (i) presence of intermediate latitude refugia with large population sizes during the last glacial maximum, (ii) a high speed of recolonisation and dispersal ability, (iii) a high mutation rate and (iv) extensive hybridisation with other willow species. In addition to the S. caprea samples, a limited number of individuals from several other Salix species were also analysed with PCR-RFLP: S. cinerea, S. aurita, S. purpurea, S. atrocinerea, S. appendiculata, S. elaeagnos, S. fragilis and S. alba. Many of the haplotypes found in Salix caprea were also detected in S. cinerea, S. aurita, S. purpurea, S. atrocinerea and/ or S. appendiculata but not in S. alba, S. elaeagnos or S. fragilis. Our data suggest that hybridisation and gene flow have occurred within these two groups but not between them.","keywords":"*imported-from-citeulike-INRMM,~INRMM-MiD:c-8507731,genetic-variation,geographic-variation,salix-caprea","number":"5","bibtex":"@article{palmeAbsenceGeographicalStructure2003,\n title = {Absence of Geographical Structure of Chloroplast {{DNA}} Variation in Sallow, {{Salix}} Caprea {{L}}.},\n author = {Palme, A. 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This lack of phylogeographic structure in S. caprea is suggested to be the consequence of the joint action of several factors: (i) presence of intermediate latitude refugia with large population sizes during the last glacial maximum, (ii) a high speed of recolonisation and dispersal ability, (iii) a high mutation rate and (iv) extensive hybridisation with other willow species. In addition to the S. caprea samples, a limited number of individuals from several other Salix species were also analysed with PCR-RFLP: S. cinerea, S. aurita, S. purpurea, S. atrocinerea, S. appendiculata, S. elaeagnos, S. fragilis and S. alba. Many of the haplotypes found in Salix caprea were also detected in S. cinerea, S. aurita, S. purpurea, S. atrocinerea and/ or S. appendiculata but not in S. alba, S. elaeagnos or S. fragilis. 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