Phylogenetic structure and paternal migration history of Sichuan Bouyei people revealed by Y-chromosomal STRs

IF 0.9 Q4 GENETICS & HEREDITY

Gene Reports Pub Date : 2025-09-18 DOI:10.1016/j.genrep.2025.102342

Guang-Yao Fan , En-Na Wang , Jia-Xin Han , Xin-Ying Yu , An-Ying Zheng , Ying Zhu

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引用次数: 0

Abstract

This study investigates the phylogenetic structure and demographic history of the Sichuan Bouyei people. Genetic profiles of 37 Y-chromosomal short tandem repeat (STR) loci among 425 Bouyei males from eight regions in Sichuan Province were analyzed. Along with published datasets, multidimensional scaling plots, principal component analysis, and phylogenetic reconstruction were conducted on both an Asia-wide and national scale. Genetic stratification in the studied populations was influenced by linguistic and geographic distribution patterns. Significant genetic differentiation was observed between two predominant Bouyei groups from the counties of Ningnan and Muli. Machine learning-based category prediction was performed among contemporary Bouyei and non-Bouyei individuals using the Linear Discriminant Analysis (LDA) method. The results of the LDA indicated a deep fusion between Tai-Kadai-speaking and Hmong-Mien-speaking populations. The timing of population differentiations was estimated using BATWING. Furthermore, the migration rate between the Sichuan Bouyei and other populations was inferred using coalescence theory in the Migrate-n program. The migration models and directions were evaluated, revealing gene flow of Bouyei people from the Sichuan Muli to Vietnam. The data presented here for the Sichuan Bouyei people will be useful in establishing a more comprehensive Y-STR database, and enrich our understanding of the patrilineal history of Tai-Kadai-speaking peoples in China.

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四川布依族y染色体STRs揭示的系统发育结构与父系迁移史

研究了四川布依族的系统发育结构和人口历史。对四川8个地区425名布依族男性的37个y染色体短串联重复序列（STR）位点进行了遗传分析。利用已发表的数据集，在亚洲和全国范围内进行了多维标度图、主成分分析和系统发育重建。研究群体的遗传分层受语言和地理分布模式的影响。来自宁南县和木里县的布依族两个优势类群之间存在显著的遗传分化。使用线性判别分析（LDA）方法对当代布依族和非布依族个体进行基于机器学习的类别预测。LDA的结果表明，台加泰语和苗语人口之间存在深度融合。利用BATWING估计种群分化的时间。此外，利用迁移-n程序中的聚结理论推断四川布依族与其他种群之间的迁移速率。对布依族的迁移模式和迁移方向进行了评价，揭示了布依族从四川木里向越南的基因流动。本文所提供的四川布依族的数据将有助于建立一个更全面的Y-STR数据库，并丰富我们对中国台加泰族父系历史的认识。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Gene Reports Biochemistry, Genetics and Molecular Biology-Genetics

CiteScore

3.30

自引率

7.70%

发文量

246

审稿时长

49 days

期刊介绍： Gene Reports publishes papers that focus on the regulation, expression, function and evolution of genes in all biological contexts, including all prokaryotic and eukaryotic organisms, as well as viruses. Gene Reports strives to be a very diverse journal and topics in all fields will be considered for publication. Although not limited to the following, some general topics include: DNA Organization, Replication & Evolution -Focus on genomic DNA (chromosomal organization, comparative genomics, DNA replication, DNA repair, mobile DNA, mitochondrial DNA, chloroplast DNA). Expression & Function - Focus on functional RNAs (microRNAs, tRNAs, rRNAs, mRNA splicing, alternative polyadenylation) Regulation - Focus on processes that mediate gene-read out (epigenetics, chromatin, histone code, transcription, translation, protein degradation). Cell Signaling - Focus on mechanisms that control information flow into the nucleus to control gene expression (kinase and phosphatase pathways controlled by extra-cellular ligands, Wnt, Notch, TGFbeta/BMPs, FGFs, IGFs etc.) Profiling of gene expression and genetic variation - Focus on high throughput approaches (e.g., DeepSeq, ChIP-Seq, Affymetrix microarrays, proteomics) that define gene regulatory circuitry, molecular pathways and protein/protein networks. Genetics - Focus on development in model organisms (e.g., mouse, frog, fruit fly, worm), human genetic variation, population genetics, as well as agricultural and veterinary genetics. Molecular Pathology & Regenerative Medicine - Focus on the deregulation of molecular processes in human diseases and mechanisms supporting regeneration of tissues through pluripotent or multipotent stem cells.