Paternal Y chromosomal genotyping reveals multiple large-scale admixtures in the formation of Lolo-Burmese–speaking populations in southwest China
Paternal Y chromosomal genotyping reveals multiple large-scale admixtures in the formation of Lolo-Burmese–speaking populations in southwest China
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DOI：
10.1080/03014460.2019.1698655
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
王传超
中科院分区：
文献类型：
--
作者：
许冰莹;l李蓝江;王传超
Background: Bai and Yi people are two Tibeto-Burman speaking ethnic groups in Yunnan, southwest.China. The genetic structure and history of these two groups are largely unknown due to a lack of.available genetic data..Aim: To investigate the paternal genetic structure and population relationship of the Yi and.Bai people..Subjects and methods: We collected samples from 278 Bai individuals and 283 Yi individuals from.Yunnan and subsequently genotyped 43 phylogenetically relevant Y-SNPs in those samples. We estimated haplogroup frequencies and merged our data with a reference database including 46 representative worldwide populations to infer genetic relationships..Results: Y chromosomal haplogroup O-M175 is the dominant lineage in both Bai and Yi people. The.Bai and Yi show a close genetic relationship with other Tibeto-Burman–speaking populations with.high frequencies of haplogroup O2a2b1a1-Page23, which is also confirmed by PCA. The frequencies of.the Tai-Kadai specific lineage O1a-M119, the southern China widespread lineage O1b-P31 and the.eastern China enriched lineage O2a1b-002611, are also relatively high in our studied populations..Conclusions: The paternal Y chromosomal affinity of the Bai and Yi with Tibeto-Burman groups is consistent with the language classification. During the formation of the Bai and Yi populations, there were.multiple large-scale admixtures, including the expansion of Neolithic farming populations from northern China, the assimilation of Tai-Kadai–speaking populations in southwest China, the demographic.expansion driven by Neolithic agricultural revolution from southern China, and the admixture with.populations of military immigration from northern and eastern China.
