Fig. 4

Neighbor-join tree constructed using (1-IBS) distance between animals. Cattle was used as an outgroup. Those with close (1-IBS) distances were highlighted with a block with the same color. Of note, the bar of the plot only represented distances between the nodes except tips. The unit distance from a tip to its corresponding closest node was different from the bar. The distance of the cattle’s tip to its corresponding closest node was 0.33 and the average distance of all other yaks’ tips to their corresponding closest nodes was 0.11. The purpose of adjusting the unit distance was to better display the distance between individuals and blocks. The lineage to which each animal belongs was labeled on the right of the tree