Cytonuclear discordance in the crowned-sparrows, Zonotrichia atricapilla and Zonotrichia leucophrys: a mitochondrial selective sweep?
R. S. Taylor, A. C. Bramwell, R. Clemente-Carvalho, N. A. Cairns, F. Bonier, S. C. Lougheed
The paper investigates cytonuclear discordance between two sparrow species, finding evidence of historical hybridization and mitochondrial introgression rather than recent speciation.
bioRxiv · Aug 20, 2020Evolutionary Biology