Population genomics of Populus trichocarpa identifies signatures of selection and adaptive trait associations

Luke Evans, Gancho Slavov, Eli Rodgers-Melnick, Joel Martin, Priya Ranjan, Wellington Muchero, Amy M Brunner, Wendy Schackwitz, Lee E. Gunter, Jin-Gui Chen, Gerald A. Tuskan, Stephen P. DiFazio

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

240 Dyfyniadau(SciVal)
639 Wedi eu Llwytho i Lawr (Pure)

Crynodeb

Forest trees are dominant components of terrestrial ecosystems that have global ecological and economic importance. Despite distributions that span wide environmental gradients, many tree populations are locally adapted, and mechanisms underlying this adaptation are poorly understood. Here we use a combination of whole-genome selection scans and association analyses of 544 Populus trichocarpa trees to reveal genomic bases of adaptive variation across a wide latitudinal range. Three hundred ninety-seven genomic regions showed evidence of recent positive and/or divergent selection and enrichment for associations with adaptive traits that also displayed patterns consistent with natural selection. These regions also provide unexpected insights into the evolutionary dynamics of duplicated genes and their roles in adaptive trait variation.
Iaith wreiddiolSaesneg
Tudalennau (o-i)1089-1096
Nifer y tudalennau8
CyfnodolynNature Genetics
Cyfrol46
Rhif cyhoeddi10
Dyddiad ar-lein cynnar24 Awst 2014
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 26 Medi 2014

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