Fig 1. Population structure of North American wolves and wolf-like canids.

A) Ancestry proportions estimated using NGSadmix for K = 5 and K = 15 clusters. B) Astral phylogeny of the 40 samples in the study, plotted to coincide with the admixture plot above, with the local posterior probabilities, computed in Astral, shown at the nodes. C) Principal component analysis of grey wolf individuals identified in the data, with colours matched to cluster assignment in the admixture plot.