Genetic substructure of Guizhou Tai-Kadai-speaking people inferred from genome-wide single nucleotide polymorphisms data

Ren, Zheng; Yang, Meiqing; Jin, Xiaoye; Wang, Qiyan; Liu, Yubo; Zhang, Hongling; Ji, Jingyan; Wang, Chuan‐Chao; Huang, Jiang

doi:10.3389/fevo.2022.995783

Cited by 3 publications

(2 citation statements)

References 42 publications

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“…Ren et al genotyped six TK-speaking populations from Guizhou Province and found that Gelao and Dong people in the north of Guizhou harbored more Han-related ancestry than Dong, Zhuang, Bouyei, and Mulao people in the south. Our newly studied DZGL had a similar genetic profile to Gelao in northern Guizhou reported by Ren et al, and the newly studied KLD had a similar genetic profile to the previously reported Dong in southern Guizhou but not in northern Guizhou (Ren et al, 2022). Chen et al sampled and genotyped Guizhou Maonan people and found their ancestry primarily from Guangxi historical people and minor ancestry from Northeast Asians (Chen et al, 2022).…”

Section: Discussionsupporting

confidence: 83%

The complex genetic landscape of southwestern Chinese populations contributed to their extensive ethnolinguistic diversity

Wang,

Duan,

Sun

et al. 2023

Front. Ecol. Evol.

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The comprehensive characterization of the fine-scale genetic background of ethnolinguistically diverse populations can gain new insights into the population admixture processes, which is essential for evolutionary and medical genomic research. However, the genetic diversity and population history of southern Chinese indigenous people are underrepresented in human genetics research and their interaction with historical immigrants remains unknown. Here, we collected genome-wide SNP data from 20 Guizhou populations belonging to three primary language families [Tai-Kadai (TK), Hmong-Mien (HM), and Tibeto-Burman (TB)], including four groups newly collected here, and merged them with publicly available data from 218 modern and ancient East Asian groups to perform one comprehensive demographic and evolutionary history reconstruction. We comprehensively characterized the genetic signatures of geographically diverse populations and found language-related population stratification. We identified the unique HM genetic lineage in Southwest China and Southeast Asia as their shared ancestral component in the demographic history reconstruction. TK and TB people showed a differentiated genetic structure from HM people. Our identified admixture signals and times further supported the hypothesis that HM people originated from the Yungui Plateau and then migrated southward during the historical period. Admixture models focused on Sino-Tibetan and TK people supported their intense interaction, and these populations harbored the most extensive gene flows consistent with their shared linguistic and cultural characteristics and lifestyles. Estimates of identity-by-descent sharing and effective population size showed the extensive population stratification and gene flow events in different time scales. In short, we presented one complete landscape of the evolutionary history of ethnolinguistically different southern Chinese people and filled the gap of missing diversity in South China.

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Section: Discussionsupporting

confidence: 83%

The complex genetic landscape of southwestern Chinese populations contributed to their extensive ethnolinguistic diversity

Wang,

Duan,

Sun

et al. 2023

Front. Ecol. Evol.

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“…It suggested that the vast mountains and rivers in Southwest China might decelerate the westward expansion of the Southeast coastal rice-farming groups. Previous studies have shown a genetic substructure in Tai-Kadai populations in Guizhou mainly caused by the different proportions of the genetic components from the Yellow River millet-farming groups in the north [50]. In our study, the genetic differences in TBG were caused mainly by the different proportions of the genetic influences from the south.…”

Section: Discussionsupporting

confidence: 50%

Genomic formation of Tibeto-Burman speaking populations in Guizhou, Southwest China

Chen,

Zhang,

Yang

et al. 2023

BMC Genomics

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Sino-Tibetan is the most prominent language family in East Asia. Previous genetic studies mainly focused on the Tibetan and Han Chinese populations. However, due to the sparse sampling, the genetic structure and admixture history of Tibeto-Burman-speaking populations in the low-altitude region of Southwest China still need to be clarified. We collected DNA from 157 individuals from four Tibeto-Burman-speaking groups from the Guizhou province in Southwest China. We genotyped the samples at about 700,000 genome-wide single nucleotide polymorphisms. Our results indicate that the genetic variation of the four Tibeto-Burman-speaking groups in Guizhou is at the intermediate position in the modern Tibetan-Tai-Kadai/Austronesian genetic cline. This suggests that the formation of Tibetan-Burman groups involved a large-scale gene flow from lowland southern Chinese. The southern ancestry could be further modelled as deriving from Vietnam’s Late Neolithic-related inland Southeast Asia agricultural populations and Taiwan’s Iron Age-related coastal rice-farming populations. Compared to the Tibeto-Burman speakers in the Tibetan-Yi Corridor reported previously, the Tibeto-Burman groups in the Guizhou region received additional gene flow from the southeast coastal area of China. We show a difference between the genetic profiles of the Tibeto-Burman speakers of the Tibetan-Yi Corridor and the Guizhou province. Vast mountain ranges and rivers in Southwest China may have decelerated the westward expansion of the southeast coastal East Asians. Our results demonstrate the complex genetic profile in the Guizhou region in Southwest China and support the multiple waves of human migration in the southern area of East Asia.

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Genetic formation of Sui populations in southwest China

Xie,

Hu,

Wang

et al. 2024

J of Sytematics Evolution

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The Sui people living in Guizhou province have a unique ethnic culture and population history due to their long‐time isolation from other populations. To investigate the genetic structure of Sui populations in different regions of Guizhou, we genotyped 89 individuals from four Sui populations using genome‐wide single nucleotide polymorphisms arrays. We analyzed the data using principal component analysis, ADMIXTURE analysis, f‐statistics, qpWave/qpAdm, TreeMix analysis, fineSTRUCTURE, and GLOBETROTTER. We found that Sui populations in Guizhou were genetically homogeneous and had a close genetic affinity with Tai‐Kadai‐speaking populations, Hmong‐Mien‐speaking Hmong, and some ancient populations from southern China. The Sui populations could be modeled as an admixture of 33.5%–37.9% of Yellow River Basin farmer‐related ancestry and 62.1%–66.5% of Southeast Asian‐related ancestry, indicating that the southward expansion of northern East Asian‐related ancestry influenced the formation of the Tai‐Kadai‐speaking Sui people. Future publications of more ancient genomics in southern China could effectively provide further insight into the demographic history and population structure of the Sui people.

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Genetic substructure of Guizhou Tai-Kadai-speaking people inferred from genome-wide single nucleotide polymorphisms data

Cited by 3 publications

References 42 publications

The complex genetic landscape of southwestern Chinese populations contributed to their extensive ethnolinguistic diversity

The complex genetic landscape of southwestern Chinese populations contributed to their extensive ethnolinguistic diversity

Genomic formation of Tibeto-Burman speaking populations in Guizhou, Southwest China

Genetic formation of Sui populations in southwest China

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