Ancient DNA evidence reveals that the Y chromosome haplogroup Q1a1 admixed into the Han Chinese 3,000 years ago

@article{Zhao2014AncientDE,
  title={Ancient DNA evidence reveals that the Y chromosome haplogroup Q1a1 admixed into the Han Chinese 3,000 years ago},
  author={Yongbin Zhao and Ye Zhang and Hongjie Li and Ying-Qiu Cui and Hong Zhu and Hui Zhou},
  journal={American Journal of Human Biology},
  year={2014},
  volume={26}
}
Y chromosome haplogroup Q1a1 is found almost only in Han Chinese populations. However, it has not been found in ancient Han Chinese samples until now. Thus, the origin of haplogroup Q1a1 in Han Chinese is still obscure. This study attempts to provide answer to this question, and to uncover the origin and paternal genetic structure of the ancestors of the Han Chinese. 

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