Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5920674 | Molecular Phylogenetics and Evolution | 2011 | 15 Pages |
Abstract
⺠Natural hybridization among closely related species could facilitate speciation by introducing novel genetic variation. ⺠We examined gene flow and nuclear-mitochondrial discordance in a recent radiation of toads using AFLP and mitochondrial DNA markers. ⺠Phylogenies generated using nuclear and mitochondrial DNA were markedly discordant and gene flow was high between species that occurred in close proximity and shared similar male advertisement calls. ⺠Species in the Anaxyrus americanus group have experienced high levels of gene flow and hybridization may have played a role in their North American radiation.
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Authors
Brian E. Fontenot, Robert Makowsky, Paul T. Chippindale,