中国牡丹江地区朝鲜族群体九个STR基因座的遗传多态性研究

目的 调查中国牡丹江地区朝鲜族群体CSFIPO,TPOX,TH01,D16S539.D7S820,D13S317,F13A01,FESFPS,vWA 9个短串联重复序列(short tandem repeats,STR)基因座的基因多态性.方法 应用扩增片段长度多态性分型技术,获得等位基因频率分布.结果 X2检验表明9个基因座基因型分布均符合Hardy.Weinberg平衡.总偶合率为5.43595E-09,总个体识别率达0.999999995,三联体累计非父排除率为0.9982,二联体累计非父排除率为0.9711.结论 9个基因座在牡丹江地区朝鲜族群体有较高的非父排除率和个人识别机率,可应用于法医学亲子鉴定和个体识别.中国牡丹江地区和中国延吉地区朝鲜族人群6个基因频率相比较,CSFIPO、TPOX和TP01 3个基因座的基因频率分布差异有统计学意义,D7S820、D17S317和vWA 3个基因座的基因频率分布差异无统计学意义.

Genetic polymorphism of 9 STR loci in Korean population of Mudanjiang

OBJECTIVE: To investigate the genetic polymorphism of 9 short tandem repeats (STR) gene loci, namely CSFIPO, TPOX, TH01, D16S539, D7S820, D13S317, F13A01, FESFPS and vWA in Chinese Korean population in Mudajiang area. METHODS: Amplified fragment length polymorphism (Amp-FLP) method was used to get the allele frequency distribution. RESULTS: The genotype distributions of the 9 STR loci are conformed to Hardy-Weinberg equilibrium by chi(2) test analysis. The total accord frequency, the accumulated total discrimination power and the the accumulative excluding probability of paternity were calculated. CONCLUSION: The result suggested that all 9 gene loci have high power of excluding probability of paternity and individual identification. They can be used in paternity testing and individual identification for forensic medicine. The gene frequencies of CSFIPO, TPOX and TP01 gene loci have significant differences between the Korean population in Mudanjiang area and those in Yanji area, but there is no difference in gene loci of D7S820, D17S317 and vWA.