Fine-scale genetic differentiation of a temperate herb: relevance of local environments and demographic change.

ABSTRACT: The genetic structure of a plant species is shaped by environmental adaptation and demographic factors, but their relative contributions are still unknown. To examine the environment- or geography-related differentiation, we quantified genetic variation among 41 populations of a temperate herb, Arabidopsis halleri subsp. gemmifera (Brassicaceae). We analysed 19 microsatellite loci, which showed a significant population differentiation and a moderate within-population genetic diversity (global Gst = 0.42 and Hs = 0.19). Our structure analysis and phylogenetic network did not detect more than two genetic groups across the Japanese mainland but found fine-scale genetic differentiations and admixed patterns around the central area. Across the Japanese mainland, we found significant evidence fo

SUBMITTER: Sato Y 

PROVIDER: S-EPMC4262940 | biostudies-literature | 2014 Nov

REPOSITORIES: biostudies-literature