法医学杂志 ›› 2017, Vol. 33 ›› Issue (4): 388-392.DOI: 10.3969/j.issn.1004-5619.2017.04.012

• 技术与应用 • 上一篇    下一篇

贵州汉族19个STR基因座多态性及法医学应用

赵勤松1,2,任  峥1,张红玲1,戴佳琳1,王  杰1,喻  芳2,黄  江1   

  1. (1. 贵州医科大学法医学院,贵州 贵阳 550025; 2. 贵州省人口和计划生育司法鉴定所,贵州 贵阳 550004)
  • 发布日期:2017-08-25 出版日期:2017-08-28
  • 通讯作者: 黄江,女,教授,博士,硕士生导师,主要从事法医物证学、法医人类学、法医昆虫学教学、科研与检案工作;E-mail:mmm_hj@gmc.edu.cn
  • 作者简介:赵勤松(1986—),男,硕士研究生,主要从事法医物证学研究;E-mail:1032663068@qq.com
  • 基金资助:

    贵州省高校工程技术研究中心资助项目(黔科合KY字[2013] 114号);贵州省现代法医司法鉴定工程研究中心资助项目(黔发改高技[2016] 1345号)

Polymorphisms of 19 STR Loci in Guizhou Han Population and Their Forensic Application

ZHAO QIN-SONG1,2, REN ZHENG1, ZHANG HONG-LING1, DAI JIA-LIN1, WANG JIE1, YU FANG2, HUANG JIANG1   

  1. (1. Department of Forensic Medicine, Guizhou Medical University, Guiyang 550025, China; 2. Guizhou Province Population and Family Planning Institute of Justice, Guiyang 550004, China)
  • Online:2017-08-25 Published:2017-08-28

摘要: 目的 调查19个常染色体STR基因座在贵州汉族人群中的等位基因分布,评估其在法医学中的应用价值。 方法 应用GoldeneyeTM DNA身份鉴定系统20A试剂盒,研究贵州520名汉族无关健康个体19个常染色体STR基因座多态性。用310型遗传分析仪进行毛细管电泳,GeneMapper?誖ID v3.1进行基因分型。 结果 19个常染色体STR基因座的杂合度为0.603 8~0.916 4,个体识别率为0.790 0~0.985 6,非父排除率为0.295 5~0.826 9,多态信息含量为0.553 5~0.908 9,累积个体识别率为1-1.230 0×10-22,累积非父排除率为0.999 999 99。贵州汉族和其他五个地域的汉族两两之间等位基因频率比较,仅贵州汉族与山东汉族、辽宁汉族、山西汉族之间存在基因频率差异具有统计学意义。 结论 D19S433等19个常染色体STR基因座在贵州汉族人群中具有良好的遗传多态性,对群体遗传学和法医物证学研究有应用价值。

关键词: 法医遗传学, 多态现象, 遗传, 短串联重复序列, GoldeneyeTM DNA身份鉴定系统20A试剂盒, 汉族, 贵州

Abstract: Objective To investigate the allelic distribution of 19 autosomal STR loci in Guizhou Han population, and to estimate the forensic application value. Methods The 19 autosomal STR loci in 520 unrelated healthy individuals from Guizhou Han population were studied using GoldeneyeTM 20A kit. The 310 genetic analyzer was used for capillary electrophoresis, and the GeneMapper?誖ID v3.1 for genotyping. Results The heterozygosis, the discrimination power, the probability of exclusion, the polymorphism information content, the cumulative discrimination power and the cumulative probability of exclusion of the 19 STR loci were 0.603 8-0.916 4, 0.790 0-0.985 6, 0.295 5-0.826 9, 0.553 5-0.908 9, 1-1.230 0×10-22 and 0.999 999 99, respectively. Compared with other five Han populations in pairwise allelic frequencies, Guizhou Han only had significant differences with Shandong Han, Liaoning Han and Shanxi Han. Conclusion The 19 autosomal STR loci such as D19S433 have a highly genetic polymorphic in Guizhou Han population, which have application values in the researches of population genetics and forensic genetics.

Key words: forensic genetics, polymorphism, genetics, short tandem repeat, GoldeneyeTM DNA ID 20A Kit, Han population, Guizhou

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