Figure 3
From: Genomic evaluation of hybridization in historic and modern North American Bison (Bison bison)
TreeMix estimation of phylogenetic network and relationships among bison populations and domestic cattle with eight migration events. All modern bison were assigned to their respective populations while historic samples were included as individuals. A representative of each of the four cattle breeds (Angus, Charolais, Hereford, and Holstein) were assigned to the cattle population. Of the migration edges five of the eight are between the cattle lineage and bison populations. The migration with the highest weight is shown between cattle and Caprock while migrations of smaller weights can be seen between Cattle and historical wood bison, Elk Island-Plains, Yellowstone and a group consisting of Wind Cave and Santa Catalina. Three additional migration events can be seen between historical wood bison and modern wood bison populations as well as between historical plains and wood bison. These migration events shown agree with the historic documentation of introgression events and movements of bison.
