Phenotypic divergence but not genetic distance predicts assortative mating among species of a cichlid fish radiation
Stelkens, R. B., & Seehausen, O. (2009). Phenotypic divergence but not genetic distance predicts assortative mating among species of a cichlid fish radiation. Journal of Evolutionary Biology, 22(8), 1679-1694. https://doi.org/10.1111/j.1420-9101.2009.01777.x