Isolation-driven divergence: speciation in a widespread North American songbird (Aves: Certhiidae).

ABSTRACT: Lineage, or true 'species', trees may differ from gene trees because of stochastic processes in molecular evolution leading to gene-tree heterogeneity. Problems with inferring species trees because of excessive incomplete lineage sorting may be exacerbated in lineages with rapid diversification or recent divergences necessitating the use of multiple loci and individuals. Many recent multilocus studies that investigate divergence times identify lineage splitting to be more recent than single-locus studies, forcing the revision of biogeographic scenarios driving divergence. Here, we use 21 nuclear loci from regional populations to re-evaluate hypotheses identified in an mtDNA phylogeographic study of the Brown Creeper (Certhia americana), as well as identify processes driving divergence. Nuc

SUBMITTER: Manthey JD 

PROVIDER: S-EPMC3256251 | biostudies-literature | 2011 Oct

REPOSITORIES: biostudies-literature