Nuclear-mitochondrial discordance and gene flow in a recent radiation of toads.

Abstract excerpt

Natural hybridization among recently diverged species has traditionally been viewed as a homogenizing force, but recent research has revealed a possible role for interspecific gene flow in facilitating species radiations. Natural hybridization can actually contribute to radiations by introducing novel genes or reshuffling existing genetic variation among diverging species. Species that have been affected by...

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