Figure 3
From: Genetic evidence of a recent Tibetan ancestry to Sherpas in the Himalayan region

Networks of three mtDNA sub-haplogroups (A: M9a1a1c1b1a1; B: A15c1; C: C4a3b1) among Sherpas and Tibetans.
The star-like networks suggest recent population expansion. The complete mtDNA genome sequences were used to construct the networks.