Biogeographic discordance of molecular phylogenetic and phenotypic variation in a continental archipelago radiation of land snails.

ABSTRACT:

Background

In island archipelagos, where islands have experienced repeated periods of fragmentation and connection through cyclic changes in sea level, complex among-island distributions might reflect historical distributional changes or local evolution. We test the relative importance of these mechanisms in an endemic radiation of Rhagada land snails in the Dampier Archipelago, a continental archipelago off the coast of Western Australia, where ten morphospecies have complex, overlapping distributions.

Results

We obtained partial mtDNA sequence (COI) for 1015 snails collected from 213 locations across 30 Islands, and used Bayesian phylogenetic analysis and Analysis of Molecular Variance (AMOVA) to determine whether geography or the morphological taxonomy best explains the p

SUBMITTER: Stankowski S 

PROVIDER: S-EPMC3897969 | biostudies-literature | 2014 Jan

REPOSITORIES: biostudies-literature