人类Y染色体36个新STR位点的筛选与鉴定

doi:10.3724/SP.J.1005.2012.01409

遗传 ›› 2012, Vol. 34 ›› Issue (11): 1409-1416.doi: 10.3724/SP.J.1005.2012.01409

人类Y染色体36个新STR位点的筛选与鉴定

彭冬铂^{1, 2}, 姜正文², 孙斯平^{1, 2}, 李才华², 卢大儒¹

1. 复旦大学生命科学学院, 遗传工程国家重点实验室, 现代人类学教育部重点实验室, 上海 200433 2. 上海天昊生物科技有限公司遗传分析中心, 上海 201203

收稿日期:2012-05-14 修回日期:2012-07-13 出版日期:2012-11-20 发布日期:2012-11-25
通讯作者: 卢大儒 E-mail:drlu@fudan.edu.cn

Screening and identification of 36 new STR loci in human Y chro-mosome

PENG Dong-Bo^1,2, JIANG Zheng-Wen², SUN Si-Ping^1,2, LI Cai-Hua², LU Da-Ru¹

1. State Key Laboratory of Genetic Engineering, MOE Key Laboratory of Contemporary Anthropology, School of Life Science, Fudan University, Shanghai 200433, China 2. Center for Genetic Genomic Analysi, Genesky Biotechnologies Inc., Shanghai 201203, China

Received:2012-05-14 Revised:2012-07-13 Online:2012-11-20 Published:2012-11-25
Contact: Lu Daru E-mail:drlu@fudan.edu.cn

摘要/Abstract

摘要： 通过对NCBI数据库中的Y-STR位点和生物信息学预测的新Y-STR位点的分析, 选取了133个位点在48个全球分布的样本中进行检测验证, 获得41个可靠的高频位点, 其中36个为首次发现验证的新Y-STR位点。利用这41个Y-STR位点, 在200个上海随机男性样本中共发现200种单倍型, 实现了人群内个体间100%区分, 并通过对浙江江山一姜氏聚集地的9个5代以内无血缘关系的姜氏个体和7个上海随机人群的姜氏个体的单倍型的分析, 发现6个江山姜氏个体具较近的亲缘关系(彼此差异位点在2~4个之间)。这41个Y-STR位点具备较高的信息度, 能有效区分群体内不同家族来源的个体, 这将有助于群体内个体间近代亲缘关系研究, 并有望在法医学法医个体识别、亲权鉴定, 人类起源、迁徙等研究中发挥重大作用。

关键词: Y-STR, 多态性, 单倍型, 区分度, 近代亲缘关系

Abstract: 133 candidate Y-STR loci were selected from NCBI STS database or by bioinformatics analysis in human Y-chromosome sequence, and were screened among 48 DNA samples around the world. Forty-one Y-STRs with high allelic frequency were validated, 36 of which were first reported. Two hundred haplotypes of the 41 STRs were identified among 200 randomly sampled male individuals in Shanghai, indicating 100% inter-individual discrimination. By network analysis of haplotypes of the 41 STRs among nine Jiang-surname male individuals with no consanguinity within 5 generations from a Jiang-surname individual gathering at Jiangshan, Zhejiang Province, and 7 Jiang-surname male individuals from the random shanghai population, 6 Jiang-surname individuals from Jiangshan were close with only 2-4 STR locus difference. These 41 Y-STR loci provide enough information by which individuals from each other with different early modern family origin can be effectively distinguished. This will promote studies on identification of non-lineal relationship in forensics, ancestry location of oversea Chinese, the surname origin and evolution, origin and migration of modern humans and many other studies of Contemporary Anthropology.

Key words: early modern genetic relationship, discrimination, Y-STR, polymorphism, haplotype

彭冬铂，姜正文，孙斯平，李才华，卢大儒. 人类Y染色体36个新STR位点的筛选与鉴定[J]. 遗传, 2012, 34(11): 1409-1416.

PENG Dong-Bo, JIANG Zheng-Wen, SUN Si-Ping, LI Cai-Hua, LU Da-Ru. Screening and identification of 36 new STR loci in human Y chro-mosome[J]. HEREDITAS, 2012, 34(11): 1409-1416.

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人类Y染色体36个新STR位点的筛选与鉴定

Screening and identification of 36 new STR loci in human Y chro-mosome

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