Fig 1.
Phylogeny of the three Mysticeti baleen whales analyzed—Fin, humpback, and blue whale, adapted from [2].
Fin+blue whale hybrids are believed to occur at a frequency of one in every 1000 fin whales. In contrast, only one blue+humpback hybrid has been reported. Grey terminal branches indicate species not included in the present study. Illustrations by Binia De Cahsan.
Fig 2.
Admixture comparisons performed using the fin whale as the mapping reference.
A: Sliding window pairwise comparisons. 100kb non-overlapping window identity-by-state, pairwise distance comparisons between each species pair. B: hPSMC plot based on the demographic history of pseudodiploid sequences constructed from different species pairs.