Integrating hybrid zone analyses in species delimitation: lessons from two anuran radiations of the Western Mediterranean.

ABSTRACT: Molecular ecologists often rely on phylogenetic evidence for assessing the species-level systematics of newly discovered lineages. Alternatively, the extent of introgression at phylogeographic transitions can provide a more direct test to assign candidate taxa into subspecies or species categories. Here, we compared phylogenetic versus hybrid zone approaches of species delimitation in two groups of frogs from the Western Mediterranean region (Discoglossus and Pelodytes), by using genomic data (ddRAD). In both genera, coalescent analyses recovered almost all nominal taxa as "species". However, the least-diverged pairs D. g. galganoi/jeanneae and P. punctatus/hespericus admix over hundreds of kilometers, suggesting that they have not yet developed strong reproductive isolation and should be

SUBMITTER: Dufresnes C 

PROVIDER: S-EPMC7028994 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature