The genetic architecture of repeated local adaptation to climate in distantly related plants.

ABSTRACT: Closely related species often use the same genes to adapt to similar environments. However, we know little about why such genes possess increased adaptive potential and whether this is conserved across deeper evolutionary lineages. Adaptation to climate presents a natural laboratory to test these ideas, as even distantly related species must contend with similar stresses. Here, we re-analyse genomic data from thousands of individuals from 25 plant species as diverged as lodgepole pine and Arabidopsis (~300 Myr). We test for genetic repeatability based on within-species associations between allele frequencies in genes and variation in 21 climate variables. Our results demonstrate significant statistical evidence for genetic repeatability across deep time that is not expected under randomnes

SUBMITTER: Whiting JR 

PROVIDER: S-EPMC11461274 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature