Neutral and Selective Processes Drive Population Differentiation for Iris hexagona.

ABSTRACT: Gene flow among widespread populations can be reduced by geographical distance or by divergent selection resulting from local adaptation. In this study, we tested for the divergence of phenotypes and genotypes among 8 populations of Iris hexagona. Using a genotyping-by-sequencing approach, we generated a panel of 750 single nucleotide polymorphisms (SNPs) and used population genetic analyses to determine what may affect patterns of divergence across I. hexagona populations. Specifically, genetic differentiation was compared between populations at neutral and nonneutral SNPs and detected significant differences between the 2 types of markers. We then asked whether loci with the strongest degree of population genetic differentiation were also the loci with the strongest association to morpho

SUBMITTER: Hamlin JA 

PROVIDER: S-EPMC4675838 | biostudies-literature | 2015 Sep-Oct

REPOSITORIES: biostudies-literature