Phylogeography sheds light on the central-marginal hypothesis in a Mediterranean narrow endemic plant.

ABSTRACT:

Background and aims

Understanding the factors that shape variation in genetic diversity across the geographic ranges of species is an important challenge in the effort to conserve evolutionary processes sustaining biodiversity. The historical influences leading to a central-marginal organization of genetic diversity have been explored for species whose range is known to have expanded from refugia after glacial events. However, this question has rarely been addressed for Mediterranean endemic plants of azonal habitats such as rocky slopes or screes. In this context, this comprehensive study examined molecular and field data from Arenaria provincialis (Caryophyllaceae), a narrow endemic plant of south-eastern France.

Methods

Across the whole geographic range, an investigation

SUBMITTER: Pouget M 

PROVIDER: S-EPMC3806523 | biostudies-literature | 2013 Nov

REPOSITORIES: biostudies-literature