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Title: Genomic insights into the population history and biological adaptation of southwestern Chinese Hmong–Mien people
Authors: Liu, Yan
Xie, Jie
Wang, Mengge
Liu, Changhui
Zhu, Jingrong
Zou, Xing
Li, Wenshan
Wang, Lin
Leng, Cuo
Xu, Quyi
Yeh, Hui-Yuan
Wang, Chuan-Chao
Wen, Xiaohong
Liu, Chao
He, Guanglin
Keywords: Humanities::General
Issue Date: 2022
Source: Liu, Y., Xie, J., Wang, M., Liu, C., Zhu, J., Zou, X., Li, W., Wang, L., Leng, C., Xu, Q., Yeh, H., Wang, C., Wen, X., Liu, C. & He, G. (2022). Genomic insights into the population history and biological adaptation of southwestern Chinese Hmong–Mien people. Frontiers in Genetics, 12, 815160-.
Journal: Frontiers in Genetics 
Abstract: Hmong-Mien (HM) -speaking populations, widely distributed in South China, the north of Thailand, Laos, and Vietnam, have experienced different settlement environments, dietary habits, and pathogenic exposure. However, their specific biological adaptation remained largely uncharacterized, which is important in the population evolutionary genetics and Trans-Omics for regional Precision Medicine. Besides, the origin and genetic diversity of HM people and their phylogenetic relationship with surrounding modern and ancient populations are also unknown. Here, we reported genome-wide SNPs in 52 representative Miao people and combined them with 144 HM people from 13 geographically representative populations to characterize the full genetic admixture and adaptive landscape of HM speakers. We found that obvious genetic substructures existed in geographically different HM populations; one localized in the HM clines, and others possessed affinity with Han Chinese. We also identified one new ancestral lineage specifically existed in HM people, which spatially distributed from Sichuan and Guizhou in the north to Thailand in the south. The sharing patterns of the newly identified homogenous ancestry component combined the estimated admixture times via the decay of linkage disequilibrium and haplotype sharing in GLOBETROTTER suggested that the modern HM-speaking populations originated from Southwest China and migrated southward in the historic period, which is consistent with the reconstructed phenomena of linguistic and archeological documents. Additionally, we identified specific adaptive signatures associated with several important human nervous system biological functions. Our pilot work emphasized the importance of anthropologically informed sampling and deeply genetic structure reconstruction via whole-genome sequencing in the next step in the deep Chinese Population Genomic Diversity Project (CPGDP), especially in the regions with rich ethnolinguistic diversity.
ISSN: 1664-8021
DOI: 10.3389/fgene.2021.815160
Schools: School of Humanities 
Rights: © 2022 Liu, Xie, Wang, Liu, Zhu, Zou, Li, Wang, Leng, Xu, Yeh, Wang, Wen, Liu and He. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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