Genetic polymorphism investigation of 16 X-STR loci in the Bai ethnic minority in Yunnan Province, Southwest China
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Genetic polymorphism investigation of 16 X-STR loci in the Bai ethnic minority in Yunnan Province, Southwest China Lili Qing 1 & Yi Li 2 & Linlin Liu 1 & Dengyong Chen 1 & Jianli Han 2 & Yuchao Shi 3 & Renwu Huang 4 & Xiufeng Zhang 1,4 & Shengjie Nie 1,4 & Liping Hu 1,4 Received: 9 September 2020 / Accepted: 30 October 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract To investigate the genetic variation and forensic efficiency of 16 X-chromosomal short tandem repeat (X-STR) loci (DX6795, DXS9902, DXS8378, HPRTB, GATA165B12, DXS7132, DXS7424, DXS6807, DXS6803, GATA172D05, DXS6800, DXS10134, GATA31E08, DXS10159, DXS6789, and DXS6810) in the Bai minority, we calculated allele frequencies, forensic parameters, and haplotype frequencies in 424 (202 males and 222 females) unrelated, healthy Bai individuals from Dali Bai Autonomous Prefecture in Yunnan Province, China. We observed a total of 132 alleles; 5–19 alleles were detected in each locus, and the corresponding allele frequencies ranged from 0.0016 to 0.7589. All of the loci detected were highly polymorphic in the Bai population in Yunnan Province, except DXS6800. The values for the combined power of discrimination in females (PDf) and males (PDm) were 0.999999999999996 and 0.999999997487061, respectively. According to a phylogenetic tree, neighboring populations and different nationalities in the same area appeared to have relatively close evolutionary relationships. This study provides and complements X-chromosome genetic polymorphism data for the Bai people in Yunnan Province, Southwest China, and enriches the available reference materials for this Chinese minority population. Keywords Bai ethnicity, . Forensic parameters, . Genetic polymorphisms, . X-STR, . Yunnan Province
The Bai nationality is an ethnic minority with a long history and culture in Southwest China. According to the sixth Lili Qing and Yi Li contributed equally to this work. Supplementary Information The online version contains supplementary material available at https://doi.org/10.1007/s00414-02002454-2. * Xiufeng Zhang [email protected] * Shengjie Nie [email protected] * Liping Hu [email protected] 1
School of Forensic Medicine, Kunming Medical University, Kunming 650500, Yunnan Province, People’s Republic of China
2
Dali Public Security Bureau, Dali, Yunnan Province, People’s Republic of China
3
Dali Bai Autonomous Prefecture Public Security Judicial Expertise Center, Dali, Yunnan Province, People’s Republic of China
4
Judicial Expertise Center, Kunming Medical University, Kunming, Yunnan Province, People’s Republic of China
national census in 2010, the population of the Bai ethnicity was approximately 1,933,510, making it the 15th largest ethnic group in China, and the Bai people are mainly distributed in Yunnan, Guizhou, Hunan, and other provinces [1]. Among these provinces, the Bai population in Yunnan Province is the largest and is mainly found in Dali Bai Autonomous Prefecture, the home of approximately 80% of the Bai ethnic group
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