Population genetic diversity and structure of a naturally isolated plant species, Rhodiola dumulosa (Crassulaceae).

ABSTRACT:

Aims

Rhodiola dumulosa (Crassulaceae) is a perennial diploid species found in high-montane areas. It is distributed in fragmented populations across northern, central and northwestern China. In this study, we aimed to (i) measure the genetic diversity of this species and that of its populations; (ii) describe the genetic structure of these populations across the entire distribution range in China; and (iii) evaluate the extent of gene flow among the naturally fragmented populations.

Methods

Samples from 1089 individuals within 35 populations of R. dumulosa were collected, covering as much of the entire distribution range of this species within China as possible. Population genetic diversity and structure were analyzed using AFLP molecular markers. Gene flow among populations

SUBMITTER: Hou Y 

PROVIDER: S-EPMC3164725 | biostudies-literature | 2011

REPOSITORIES: biostudies-literature