Replicated radiations of the alpine genus Androsace (Primulaceae) driven by range expansion and convergent key innovations.

ABSTRACT:

Aim

We still have limited understanding of the contingent and deterministic factors that have fostered the evolutionary success of some species lineages over others. We investigated how the interplay of intercontinental migration and key innovations promoted diversification of the genus Androsace.

Location

Mountain ranges and cold steppes of the Northern Hemisphere.

Methods

We reconstructed ancestral biogeographical ranges at regional and continental scales by means of a dispersal-extinction-cladogenesis analysis using dated Bayesian phylogenies and contrasting two migration scenarios. Based on diversification analyses under two frameworks, we tested the influence of life form on speciation rates and whether diversification has been diversity-dependent.

Resu

SUBMITTER: Roquet C 

PROVIDER: S-EPMC4001080 | biostudies-literature | 2013 Oct

REPOSITORIES: biostudies-literature