PMC

Outline of the simulated back-crossing, generating F1 hybrids, and subsequent back-crossed generations into the Antarctic and Atlantic pure species

STRUCTURE barplot for the baseline individuals (N = 1101 divided into 11 categories): Inferred ancestry of individuals was calculated after averaging ten STRUCTURE runs with CLUMPP at K = 2 using a) popinfo, and b) without popinfo. ACU stands for the Atlantic B. acutorostrata and BON for the Antarctic B. bonaerensis

Posterior probabilities of belonging to the parental species Atlantic minke whale (ACU), B. acutorostrata, (left column) and Antarctic minke whale (BON), B. bonaerensis (right column) for the 1101 baseline individuals divided into 11 groups. Distribution of the averaged q_i(open circles) and 90% CI (bars) values computed by STRUCTURE after ten runs at K = 2 using popinfo (a, b) and without popinfo (c, d)