UCE phylogenomics reveals orogenic vicariance and introgression as drivers of diversification in a montane Mexican lizard (Anguidae: Barisia)

We investigated evolutionary relationships among species of the endemic Mexican lizard genus Barisia using nuclear ultraconserved elements (UCEs). We analyzed samples largely overlapping with a previous study based on mitochondrial DNA (mtDNA) and compared topologies to evaluate mito-nuclear discordance. We also examined population structure, introgression, species boundaries, and biogeographic history using molecular dating and ancestral area reconstruction.