Sequential adaptive introgression of the mitochondrial genome in Drosophila yakuba and Drosophila santomea.

Abstract excerpt

Interspecific hybridization provides the unique opportunity for species to tap into genetic variation present in a closely related species and potentially take advantage of beneficial alleles. It has become increasingly clear that when hybridization occurs, mitochondrial DNA (mtDNA) often crosses species boundaries, raising the possibility that it could serve as a recurrent target of natural selection and source...

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