Detecting the footprints of divergent selection in oaks with linked markers.

ABSTRACT: Genome scans are increasingly used to study ecological speciation, providing a useful genome-wide perspective on divergent selection in the presence of gene flow. Here, we compare current approaches to detect footprints of divergent selection in closely related species. We analyzed 192 individuals from two interfertile European temperate oak species using 30 nuclear microsatellites from eight linkage groups. These markers present little intraspecific differentiation and can be used in combination to assign individual genotypes to species. We first show that different outlier detection tests give somewhat different results, possibly due to model constraints. Second, using linkage information for these markers, we further characterize the signature of divergent selection in the presence of g

SUBMITTER: Goicoechea PG 

PROVIDER: S-EPMC3499841 | biostudies-literature | 2012 Dec

REPOSITORIES: biostudies-literature