The challenge of separating signatures of local adaptation from those of isolation by distance and colonization history: The case of two white pines.

ABSTRACT: Accurately detecting signatures of local adaptation using genetic-environment associations (GEAs) requires controlling for neutral patterns of population structure to reduce the risk of false positives. However, a high degree of collinearity between climatic gradients and neutral population structure can greatly reduce power, and the performance of GEA methods in such case is rarely evaluated in empirical studies. In this study, we attempted to disentangle the effects of local adaptation and isolation by environment (IBE) from those of isolation by distance (IBD) and isolation by colonization from glacial refugia (IBC) using range-wide samples in two white pine species. For this, SNPs from 168 genes, including 52 candidate genes for growth and phenology, were genotyped in 133 and 61 popula

SUBMITTER: Nadeau S 

PROVIDER: S-EPMC5192886 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature