The ecological, genetic and genomic architecture of local adaptation and population differentiation in Boechera stricta.

ABSTRACT: Differential local adaptation restricts gene flow between populations inhabiting distinct environments, resulting in isolation by adaptation. In addition to the statistical inferences of genotype-environment associations, an integrative approach is needed to investigate the effect of local adaptation on population divergence at the ecological, genetic and genomic scale. Here, we combine reciprocal transplant, genome-environment association and QTL mapping to investigate local adaptation in Boechera stricta (Drummond's rockcress). With reciprocal transplant experiment, we found local genetic groups exhibit phenotypic characteristics corresponding to the distinct selection forces from different water availability. At the genetic level, the local allele of a major fitness QTL confers h

SUBMITTER: Lin YP 

PROVIDER: S-EPMC8059522 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature