1. Data from: Historical introgression and the role of selective vs. neutral processes in structuring nuclear genetic variation (AFLP) in a circumpolar marine fish, the capelin (Mallotus villosus) Colbeck, Gabriel J, Turgeon, Julie, Sirois, Pascal, and Dodson, Julian J. 2015 Oct 26. The capelin (Mallotus villosus) is a widespread marine fish species for which previous work has identified geographically distinct mtDNA clades, th...