A map of local adaptation in Arabidopsis thaliana

Science
A Fournier-LevelA M Wilczek

Abstract

Local adaptation is critical for species persistence in the face of rapid environmental change, but its genetic basis is not well understood. Growing the model plant Arabidopsis thaliana in field experiments in four sites across the species' native range, we identified candidate loci for local adaptation from a genome-wide association study of lifetime fitness in geographically diverse accessions. Fitness-associated loci exhibited both geographic and climatic signatures of local adaptation. Relative to genomic controls, high-fitness alleles were generally distributed closer to the site where they increased fitness, occupying specific and distinct climate spaces. Independent loci with different molecular functions contributed most strongly to fitness variation in each site. Independent local adaptation by distinct genetic mechanisms may facilitate a flexible evolutionary response to changing environment across a species range.

Associated Datasets

Aug 22, 2011·Arthur KorteMartha D. Cooper

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Citations

Jun 19, 2013·Trends in Ecology & Evolution·Stéphanie Manel, Rolf Holderegger
Dec 29, 2012·Nature Communications·Sabrina KleessenZoran Nikoloski
Oct 19, 2013·Nature Reviews. Genetics·Outi SavolainenJuha Merilä
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Aug 2, 2013·Genome Biology and Evolution·Tanja PyhäjärviJeffrey Ross-Ibarra
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Oct 9, 2012·Science·Tobias ZüstLindsay A Turnbull
Jul 24, 2013·Plant Methods·Arthur Korte, Ashley Farlow
Apr 26, 2012·PLoS Genetics·Christina L RichardsMichael D Purugganan
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