Phylogeography of Y-chromosome haplogroup Q1a1a-M120, a paternal lineage connecting populations in Siberia and East Asia

Phylogeography of Y-chromosome haplogroup Q1a1a-M120, a paternal lineage connecting populations in Siberia and East Asia

Abstract:

Background:
Previous studies have suggested that the human Y-chromosome haplogroup Q1a1a-M120, a widespread paternal lineage in East Asian populations, originated in South Siberia. However, much uncertainty remains regarding the origin, diversification, and expansion of this paternal lineage.

Aim:
To explore the origin and diffusion of paternal Q-M120 lineages in East Asia

Subjects and methods:
We generated 26 new Y chromosome sequences of Q-M120 males and co-analysed 45 Y chromosome sequences of this haplogroup. We reconstructed a highly revised phylogenetic tree of haplogroup Q-M120 with age estimates. Additionally, we performed a comprehensive phylogeographic analysis of this lineage including 15,007 samples from 440 populations in eastern Eurasia.

Results:
We revealed an ancient connection of this lineage with populations in Siberia. However, this paternal lineage experienced an in-situ expansion between 5,000 and 3,000 years ago in northwestern China. Ancient populations with high frequencies of Q-M120 were involved in the formation of ancient Huaxia populations before 2,000 years ago; this haplogroup eventually became one of the founding paternal lineages of modern Han populations.

Conclusion:
We provided a clear pattern about the origin and diffusion process of haplogroup Q1a1a-M120, as well as the role of this paternal lineage during the formation of ancient Huaxia populations and modern Han populations.

Citation:

  • Wei, LH, Sun, N., Ma, PC., Yan, S., Wen, SQ., Sun, C. (2019). Phylogeography of Y-chromosome haplogroup Q1a1a-M120, a paternal lineage connecting populations in Siberia and East Asia. Annals of Human Biology, -, -.

Source Link:
https://www.tandfonline.com/doi/abs/10.1080/03014460.2019.1632930

Keywords

Peoples: East Asians | Places: East Asia and Siberia | Topics: East Asia, Q1a1a-M120, Siberia, and Y-chromosome | DNA Type: Y-DNA and Y-SNP

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