シェルパ
A 2014 study observed that considerable genetic components from the Indian Subcontinent were found in Sherpa people living in Tibet. The western Y chromosomal haplogroups R1a1a-M17, J-M304, and F*-M89 comprise almost 17% of the paternal gene pool in tested individuals. In the maternal side, M5c2, M21d, and U from the west also count up to 8% of people in given Sherpa populations. However, a later study from 2015 did not support the results from the 2014 study; the 2015 study concluded that genetic sharing from the Indian subcontinent was highly limited; a 2017 study found the same.