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Title

Broad-scale adaptive genetic variation in alpine plants is driven by temperature and precipitation

Publication Year

2012

Author(s)
  • Manel, Stephanie
  • Gugerli, Felix
  • Thuiller, Wilfried
  • Alvarez, Nadir
  • Legendre, Pierre
  • Holderegger, Rolf
  • Gielly, Ludovic
  • Taberlet, Pierre
Source
MOLECULAR ECOLOGY Volume: 21 Issue: 15 Pages: 3729-3738 Published: 2012
ISSN
0962-1083
Abstract

Identifying adaptive genetic variation is a challenging task, in particular in non-model species for which genomic information is still limited or absent. Here, we studied distribution patterns of amplified fragment length polymorphisms (AFLPs) in response to environmental variation, in 13 alpine plant species consistently sampled across the entire European Alps. Multiple linear regressions were performed between AFLP allele frequencies per site as dependent variables and two categories of independent variables, namely Morans eigenvector map MEM variables (to account for spatial and unaccounted environmental variation, and historical demographic processes) and environmental variables. These associations allowed the identification of 153 loci of ecological relevance. Univariate regressions between allele frequency and each environmental factor further showed that loci of ecological relevance were mainly correlated with MEM variables. We found that precipitation and temperature were the best environmental predictors, whereas topographic factors were rarely involved in environmental associations. Climatic factors, subject to rapid variation as a result of the current global warming, are known to strongly influence the fate of alpine plants. Our study shows, for the first time for a large number of species, that the same environmental variables are drivers of plant adaptation at the scale of a whole biome, here the European Alps.

Author Keyword(s)
  • adaptation
  • climate change
  • environmental association analysis
  • genome scan
  • landscape genetics
  • loci of ecological relevance
KeyWord(s) Plus
  • CLIMATE-CHANGE
  • LANDSCAPE GENETICS
  • ECOLOGICAL RESPONSES
  • POPULATION GENOMICS
  • NEIGHBOR MATRICES
  • SPATIAL-ANALYSIS
  • ARABIS-ALPINA
  • ADAPTATION
  • EVOLUTIONARY
  • DIVERSITY
ESI Discipline(s)
  • Biology & Biochemistry
  • Environment/Ecology
  • Molecular Biology & Genetics
  • Plant & Animal Science
Web of Science Category(ies)
  • Biochemistry & Molecular Biology
  • Ecology
  • Evolutionary Biology
Adress(es)

[Manel, Stephanie] Aix Marseille Univ, Lab Populat Environm Dev, UMR UP IRD 151, F-13331 Marseille 03, France; [Manel, Stephanie; Thuiller, Wilfried; Gielly, Ludovic; Taberlet, Pierre] Univ Grenoble 1, Lab Ecol Alpine LECA, CNRS UMR 5553, F-38041 Grenoble 9, France; [Gugerli, Felix; Holderegger, Rolf] WSL Swiss Fed Res Inst, CH-8903 Birmensdorf, Switzerland; [Alvarez, Nadir] Univ Lausanne, Dept Ecol & Evolut, CH-1015 Lausanne, Switzerland; [Legendre, Pierre] Univ Montreal, Dept Sci Biol, Montreal, PQ H3C 3J7, Canada

Reprint Adress

Manel, S (reprint author), Aix Marseille Univ, Lab Populat Environm Dev, UMR UP IRD 151, 3 Pl Victor Hugo, F-13331 Marseille 03, France.

Country(ies)
  • Canada
  • France
  • Switzerland
CNRS - Adress(es)
  • Laboratoire d'écologie alpine (LECA), UMR5553
Accession Number
WOS:000306478800010
uid:/9BHS6RWR
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