Introgressive hybridization between Micropterus dolomieu and Micropterus salmoides was assessed in their invaded South African range using nine microsatellite markers and two mtDNA gene regions. Although M. dolomieu and M. salmoides are distantly related, indicated by the large uncorrected pairwise distances observed between the two species, mitochondrial introgression and unidirectional admixture was detected.
Keywords: Micropterus; freshwater fish; homoplasy; hybridization; invasive; smallmouth bass.
© 2018 The Fisheries Society of the British Isles.