摘要： 为丰富中华民族基因数据库，获取中国吉林省特有少数民族--朝鲜族D3S1358、vWA、FGA、TH01、TPOX、CSF1PO、D5S818、D13S317、D7S820等9个STR基因座的群体遗传数据。采用四色荧光标记STR基因扫描技术，检测91个无关个体血液样本。结果共检出81种等位基因，其基因频率分布在0.0055~0.4615之间；共检出196种基因型，其基因型频率分布在0.0110~0.9890之间。9个STR基因座基因型频率观察值与期望值均符合Hardy-Weinberg平衡定律（P＞0.05）。9个基因座的多态信息量PIC（polymorphic information content）分布于0.6863~0.8807之间，杂合度H（heterozygosity）分布于0.6919~0.8809之间，个体识别力DP（discrimination power）分布于0.8301~0.9670之间，非父排除率PPE（probability of paternity exclusion）分布于0.8590~0.9942之间。研究结果可应用于人类群体遗传学及法医学研究等领域。

Genetic Polymorphism of 9 STR loci in Chaoxian National Minority of China
GAO Ya1,JIN Tian-bo1,LAI Jiang-hua1,CHEN Teng1,ZHENG Hai-bo1,ZHU Bo-feng1,HU Song-nian2,WANG Jian2,LI Sheng-bin1
1.Forensic Laboratory of Ministry of Health of Xi'an Jiaotong University,710061，Xi'an China;
2.Beijing Huada Genomics Institute( Beijing Airport Industrial Zone B-6),101300,Beijing,China
Abstract:In order to enrich the Chinese genetic database,nine polymorphic loci of STR,such as D3S1358,vWA,FGA,TH01,TPOX,CSF1PO,D5S818,D13S317 and D7S820 were studied.Based on STR gene scan marked by fluorescence,91 unrelated Chinese Chaoxian individuals were observed.81 alleles and 196 genotypes were found.The corresponding gene frequency and genotype frequency were 0.0055~0.4615 and 0.0110~0.9890 respectively.The genogypes frequency of nine STR loci was good with the Hardy-Weinberg equilibrium（P＞0.05）.The statistical analysis of nine STR loci showed the following：PIC（polymorphic information content）≥0.6863，H（heterozygosity）≥0.6919，DP（discrimination power）≥0.8301，EPP（probability of paternity exclusion）≥0.8590.The data studied can be used in Chinese population genetic studies and forensic medicine applications.
Key words：Chaoxian groups of China;STRs;gene scan;genetic polymorphism

关键词: 遗传多态性, 基因扫描, STR基因座, 中国朝鲜族