Genome-wide effects of postglacial colonization in Arabidopsis lyrata
International audience The perennial outcrossing Arabidopsis lyrata is becoming a plant model species for molecular ecology and evolution. However, its evolutionary history, and especially the impact of the climatic oscillations of the Pleistocene on its genetic diversity and population structure, i...
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ftunivnantes:oai:HAL:hal-02668158v1 2023-05-15T16:51:33+02:00 Genome-wide effects of postglacial colonization in Arabidopsis lyrata Muller, Marie-Helene, Leppala, J. Savolainen, O. Diversité et adaptation des plantes cultivées (UMR DIAPC) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Université Montpellier 2 - Sciences et Techniques (UM2) Department of Biology University of Oulu 2008 https://hal.inrae.fr/hal-02668158 https://doi.org/10.1038/sj.hdy.6801057 en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/sj.hdy.6801057 hal-02668158 https://hal.inrae.fr/hal-02668158 doi:10.1038/sj.hdy.6801057 PRODINRA: 30008 WOS: 000251727900009 ISSN: 0018-067X EISSN: 0018-067X Heredity https://hal.inrae.fr/hal-02668158 Heredity, Nature Publishing Group, 2008, 100 (1), pp.47-58. ⟨10.1038/sj.hdy.6801057⟩ POSTGLACIAL HISTORY MICROSATELLITES POPULATION STRUCTURE [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology info:eu-repo/semantics/article Journal articles 2008 ftunivnantes https://doi.org/10.1038/sj.hdy.6801057 2022-08-02T23:01:01Z International audience The perennial outcrossing Arabidopsis lyrata is becoming a plant model species for molecular ecology and evolution. However, its evolutionary history, and especially the impact of the climatic oscillations of the Pleistocene on its genetic diversity and population structure, is not well known. We analyzed the broad-scale population structure of the species based on microsatellite variation at 22 loci. A wide sample in Europe revealed that glaciations and postglacial colonization have caused high divergence and high variation in variability between populations. Colonization from Central Europe to Iceland and Scandinavia was associated with a strong decrease of genetic diversity from South to North. On the other hand, the Russian population included in our data set may originate from a different refugium probably located more to the East. These genome-wide patterns must be taken into account in studies aiming at elucidating the genetic basis of local adaptation. As shown by sequence data, most of the loci used in this study do not evolve like typical microsatellite loci and show variable levels of homoplasy: this mode of evolution makes these markers less suitable to investigate the between-continent divergence and more generally the worldwide evolution of the species. Finally, a strong negative correlation was detected between levels of within-population diversity and indices of differentiation such as FST. We discuss the causes of this correlation as well as the potential bias it induces on the quantification and interpretation of population structure Article in Journal/Newspaper Iceland Université de Nantes: HAL-UNIV-NANTES Heredity 100 1 47 58 |
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Université de Nantes: HAL-UNIV-NANTES |
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English |
topic |
POSTGLACIAL HISTORY MICROSATELLITES POPULATION STRUCTURE [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology |
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POSTGLACIAL HISTORY MICROSATELLITES POPULATION STRUCTURE [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology Muller, Marie-Helene, Leppala, J. Savolainen, O. Genome-wide effects of postglacial colonization in Arabidopsis lyrata |
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POSTGLACIAL HISTORY MICROSATELLITES POPULATION STRUCTURE [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology |
description |
International audience The perennial outcrossing Arabidopsis lyrata is becoming a plant model species for molecular ecology and evolution. However, its evolutionary history, and especially the impact of the climatic oscillations of the Pleistocene on its genetic diversity and population structure, is not well known. We analyzed the broad-scale population structure of the species based on microsatellite variation at 22 loci. A wide sample in Europe revealed that glaciations and postglacial colonization have caused high divergence and high variation in variability between populations. Colonization from Central Europe to Iceland and Scandinavia was associated with a strong decrease of genetic diversity from South to North. On the other hand, the Russian population included in our data set may originate from a different refugium probably located more to the East. These genome-wide patterns must be taken into account in studies aiming at elucidating the genetic basis of local adaptation. As shown by sequence data, most of the loci used in this study do not evolve like typical microsatellite loci and show variable levels of homoplasy: this mode of evolution makes these markers less suitable to investigate the between-continent divergence and more generally the worldwide evolution of the species. Finally, a strong negative correlation was detected between levels of within-population diversity and indices of differentiation such as FST. We discuss the causes of this correlation as well as the potential bias it induces on the quantification and interpretation of population structure |
author2 |
Diversité et adaptation des plantes cultivées (UMR DIAPC) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Université Montpellier 2 - Sciences et Techniques (UM2) Department of Biology University of Oulu |
format |
Article in Journal/Newspaper |
author |
Muller, Marie-Helene, Leppala, J. Savolainen, O. |
author_facet |
Muller, Marie-Helene, Leppala, J. Savolainen, O. |
author_sort |
Muller, Marie-Helene, |
title |
Genome-wide effects of postglacial colonization in Arabidopsis lyrata |
title_short |
Genome-wide effects of postglacial colonization in Arabidopsis lyrata |
title_full |
Genome-wide effects of postglacial colonization in Arabidopsis lyrata |
title_fullStr |
Genome-wide effects of postglacial colonization in Arabidopsis lyrata |
title_full_unstemmed |
Genome-wide effects of postglacial colonization in Arabidopsis lyrata |
title_sort |
genome-wide effects of postglacial colonization in arabidopsis lyrata |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://hal.inrae.fr/hal-02668158 https://doi.org/10.1038/sj.hdy.6801057 |
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Iceland |
genre_facet |
Iceland |
op_source |
ISSN: 0018-067X EISSN: 0018-067X Heredity https://hal.inrae.fr/hal-02668158 Heredity, Nature Publishing Group, 2008, 100 (1), pp.47-58. ⟨10.1038/sj.hdy.6801057⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/sj.hdy.6801057 hal-02668158 https://hal.inrae.fr/hal-02668158 doi:10.1038/sj.hdy.6801057 PRODINRA: 30008 WOS: 000251727900009 |
op_doi |
https://doi.org/10.1038/sj.hdy.6801057 |
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