Multiple origins of Tibetan Y chromosomes.
The genetic origin of Tibetans was investigated using Y chromosome markers. A total of three populations were studied, two from central Tibet speaking central Tibetan and one from Yunnan speaking Kham. Two dominant paternal lineages (>80%) were identified in all three populations with one possibly from central Asia (YAP+) and the other from east Asia (M122C). We conclude that Tibetan Y chromosomes may have been derived from two different gene pools, given the virtual absence of M122C in central Asia and YAP+ in east Asia, with drift an unlikely mechanism accounting for these observations.
Qian
Y
Y
Institute of Medical Biology, The Chinese Academy of Medical Sciences, Kunming, Yunnan, China.
Qian
B
B
Su
B
B
Yu
J
J
Ke
Y
Y
Chu
Z
Z
Shi
L
L
Lu
D
D
Chu
J
J
Jin
L
L
D020087:Alu Elements; D001209:Asia, Central; D044466:Asian People / Q000235:genetics*; D005075:Biological Evolution; D002681:China / Q000208:ethnology; D004641:Emigration and Immigration; D005220:Fathers; D005788:Gene Pool; D005819:Genetic Markers; D006239:Haplotypes; D006801:Humans; D018609:Tibet; D014998:Y Chromosome
D005819:Genetic Markers