Genetic differentiation and delimitation between ecologically diverged Populus euphratica and P. pruinosa.

ABSTRACT:

Background

The fixed genetic differences between ecologically divergent species were found to change greatly depending on the markers examined. With such species it is difficult to differentiate between shared ancestral polymorphisms and past introgressions between the diverging species. In order to disentangle these possibilities and provide a further case for DNA barcoding of plants, we examine genetic differentiation between two ecologically divergent poplar species, Populus euphratica Oliver and P. pruinosa Schrenk using three different types of genetic marker.

Methodology/principal findings

We genotyped 290 individuals from 29 allopatric and sympatric populations, using chloroplast (cp) DNA, nuclear (nr) ITS sequences and eight simple sequence repeat (SSR) loci. Three m

SUBMITTER: Wang J 

PROVIDER: S-EPMC3197521 | biostudies-literature | 2011

REPOSITORIES: biostudies-literature