Fig. 2
From: Differentiated demographic histories and local adaptations between Sherpas and Tibetans
Principal component analysis (PCA) for SHP, TBN, and their subgroups. PCA of a SHP and TBN within the context of some East Asians, b SHP and TBN, c SHP subgroups, and d TBN subgroups. Subgroups are classified according to their geographic locations. Numbers in parentheses denote variance explained by each principal component (PC). Note that three outliers in d (one in TBN.Nyingchi and two in TBN.Shigatse) were removed when we drew the figure