Annals of Human Biology ( IF 1.7 ) Pub Date : 2020-06-16 Jiani Lu, Hongling Zhang, Zheng Ren, Qiyan Wang, Yubo Liu, Yingxiang Li, Guanglin He, Jianxin Guo, Jing Zhao, Rong Hu, Lan-Hai Wei, Gang Chen, Jiang Huang, Chuan-Chao Wang
Background: Chuanqing is an unrecognised ethnic group in Guizhou, southwest China. The genetic history of the Chuanqing people is hotly debated due to a lack of available genetic data.
Aim: To infer the genetic structure and population history of Chuanqing people and genetic relationships of the Chuanqing with other East Asians.
Subjects and methods: We collected samples from 14 Chuanqing individuals from Guizhou and genotyped about 690,000 genome-wide single nucleotide polymorphisms (SNPs). We used Principal Component Analysis (PCA), ADMIXTURE analysis, and f statistics to infer the population genetic structure and admixture.
Results: Chuanqing people show a distinct genetic profile from indigenous Tai-Kadai and Tibeto-Burman speaking populations in southwest China, but they are genetically similar to southern Han Chinese, Miao, She and Tujia populations. The Han Chinese characteristic Y chromosomal lineages reach high frequencies in Chuanqing.
Conclusions: The genetic formation of Chuanqing people has been greatly influenced by Han Chinese related populations.