title: Genetic polymorphism investigation of the Chinese Yi minority using PowerPlex® Y23 STR amplification system.
abstract: Twenty-three Y-STR loci (DYS576, DYS389I, DYS389 II, DYS448, DYS19, DYS391, DYS481, DYS549, DYS533, DYS438, DYS437, DYS570, DYS635, DYS390, DYS439, DYS392, DYS393, DYS458 DYS456, DYS643, Y-GATA-H4, and DYS385a/b) included in the next-generation PowerPlex® Y23 System were first investigated in 311 unrelated, healthy male individuals from the Yi minority population residing in the Liangshan Yi Autonomous Prefecture, Sichuan, China. A total of 179 alleles and 297 haplotypes were discovered in the Yi group. In total, 285 haplotypes among them were unique, and the remaining 12 haplotypes were observed in two or three individuals. Haplotype discrimination capacity and haplotype diversity were 0.9550 and 0.9989, respectively. Genetic diversity ranged from 0.4550 (DYS437) to 0.9556 (DYS385a/b). Population comparisons between the Yi minority group and 10 Asian meta-populations comprising 58 individual populations were performed. Both multidimensional scaling plots and phylogenetic analyses demonstrated that the genetic structure of the Chinese Yi ethnicity was extremely different compared to Taiwan indigenous inhabitants among 10 Asian meta-populations. Additionally, the genetic structure resemblance of the Yi group was obtained from a geographically close population (Xuanwei Han) or similar language family groups (Thai populations). Besides, our study has demonstrated that the PowerPlex® Y23 System has high polymorphism in a Chinese Yi ethnic population and high discriminatory power for forensic purposes. Population data of the 23 Y-STR obtained from a Yi ethnic population has enriched the Chinese ethnic genetic information.
authors.affiliation: Department of Forensic Genetics, West China School of Basic Science and Forensic Medicine, Sichuan University (West China University of Medical Sciences), Chengdu, Sichuan, 610041, China.
authors.forename: GuangLin
authors.initials: G
authors.lastname: He
authors.affiliation: Center of Forensic Expertise, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, 563099, China.|Department of Forensic Medicine, Zunyi Medical University, Zunyi, Guizhou, 563099, China.
authors.forename: PengYu
authors.initials: P
authors.lastname: Chen
authors.affiliation: Department of Forensic Medicine, College of Basic Medicine, Chongqing Medical University, Chongqing, 400016, China.
authors.forename: Xing
authors.initials: X
authors.lastname: Zou
authors.affiliation: Department of Clinical Laboratory, the First People's Hospital of Liangshan Yi Autonomous Prefecture, Xichang, Sichuan, 615000, China.
authors.forename: Xu
authors.initials: X
authors.lastname: Chen
authors.affiliation: Department of Forensic Genetics, West China School of Basic Science and Forensic Medicine, Sichuan University (West China University of Medical Sciences), Chengdu, Sichuan, 610041, China.
authors.forename: Feng
authors.initials: F
authors.lastname: Song
authors.affiliation: Department of Forensic Genetics, West China School of Basic Science and Forensic Medicine, Sichuan University (West China University of Medical Sciences), Chengdu, Sichuan, 610041, China. JingYanscu@163.com.
authors.forename: Jing
authors.initials: J
authors.lastname: Yan
authors.affiliation: Department of Forensic Genetics, West China School of Basic Science and Forensic Medicine, Sichuan University (West China University of Medical Sciences), Chengdu, Sichuan, 610041, China. forensic@scu.edu.cn.
authors.forename: YiPing
authors.initials: Y
authors.lastname: Hou
mesh_terms: D002681:China; D041322:Chromosomes, Human, Y; D005006:Ethnicity / Q000235:genetics*; D005828:Genetics, Population; D006239:Haplotypes; D006801:Humans; D008297:Male; D018895:Microsatellite Repeats; D060885:Multiplex Polymerase Chain Reaction / Q000295:instrumentation; D011110:Polymorphism, Genetic
keywords: Forensic genetics; Phylogenetic analysis; PowerPlex® Y23 system; Y-STR; Yi ethnicity