Objective To establish the northwest database of short tandem repeat(STR) loci in forensic medicine. Methods Bloodstains or whole blood samples were collected from the unrelated prisoners in Xi'an city. Genetic ...Objective To establish the northwest database of short tandem repeat(STR) loci in forensic medicine. Methods Bloodstains or whole blood samples were collected from the unrelated prisoners in Xi'an city. Genetic distribution for 13 STR loci and amelogenin locus were determined in prisons based on GeneScan. One primer for each locus was labeled with the fluorescent by 5 FAM, JOE, or NED. The forensic database were generated by using multiple amplification, GeneScan, genotype, and genetic distribution analysis. Results 113 alleles and 302 genotypes were observed, with the corresponding frequency between 0.0050-0.5250 and 0.0100-0.4100. The mean H was 0.7667. The accumulative DP was 0.9999999,. The accumulative EPP was 0.9999999. The scope of PIC was 0.6036- 0.8562 . PM was less than 10 -11 . The observed and expected genotype frequencies were evaluated using χ 2 test and all were in accordance with Hardy Weinberg equilibrium ( P > 0.05 ). Conclusion STR loci is an ideal genetic marker with powerful polymorphism and stable heredity. It can be used for individual identification and paternity in forensic medicine. The forensic DNA database model can be established successfully.展开更多
利用多重PCR五色荧光（6FAM、VIC、NED、PET、LIZ）自动化检测技术检测西藏自治区藏族人群DSS1179、D21S11、D7S820、CSF1PO、D3S1358、TH01、D13S317、D16S539、D2S1338、D19S433、VWA、TPOX、D18S51、D5S818及FGA共15个STR基因座遗传...利用多重PCR五色荧光（6FAM、VIC、NED、PET、LIZ）自动化检测技术检测西藏自治区藏族人群DSS1179、D21S11、D7S820、CSF1PO、D3S1358、TH01、D13S317、D16S539、D2S1338、D19S433、VWA、TPOX、D18S51、D5S818及FGA共15个STR基因座遗传多态性，获得15个STR基因座的群体遗传学数据。结果显示：15个STR基因座的基因型分布符合Hardy-Weinberg平衡。15个STR基因座的个体鉴别力（Discrimination power,DP）在0．7555～0．9602之间，杂合度（Heterozygosity,H）在0．5651～0．8530之间，多态性信息含量（Polymorphism information content，PIC）在0．5528～0．8456之间，非父排除率（Probability of paternity exclusion，EPP）在0．3811～0．8549之间，累积个体鉴别力为0．999999999，累积非父排除率为0．999999998。15个短串联重复序列基因座适合作为西藏藏族人群的遗传标记，用于人类学、疾病连锁分析、法医学亲子鉴定和个体识别等领域的研究。展开更多
目的：获得15个短串联重复序列（Short tandem repeat, STR）基因座在辽宁地区汉族人群的等位基因频率分布及群体遗传学数据.方法：调查15个STR（D8S1179、D21S11、D7S820、CSF1PO、D3S1358、TH01、D13S317、D16S539、2S1338、D19S433、...目的：获得15个短串联重复序列（Short tandem repeat, STR）基因座在辽宁地区汉族人群的等位基因频率分布及群体遗传学数据.方法：调查15个STR（D8S1179、D21S11、D7S820、CSF1PO、D3S1358、TH01、D13S317、D16S539、2S1338、D19S433、VWA、TPOX、D18S51、D5S818、FGA）在141名辽宁汉族人群中等位基因频率分布.提取基因组DNA,利用多重PCR和五色荧光（6FAM、VIC、NED、PET、LIZ）自动化检测技术,获得基因分型图,然后进行统计分析,获得15个STR基因座等位基因频率及群体遗传学指标.结果：15个STP在辽宁地区汉族人群中具有较高的遗传多态性,15个STR基因座分别检测到5～16种等位基因,共136个,频率分布在0.0035～0.5248之间,DP值在0.7896～0.9528之间,H值在0.6225～0.8534之间,PIC值在0.6140～0.8480之间,EPP值在0.4324～0.8281之间,累积个体鉴别力为0.99999999,累积非父排除率为0.99999999.结论：15个STR位点适合作为辽宁地区汉族人群的遗传标记,用于人类学、疾病连锁分析、法医学亲子鉴定和个体识别等领域的研究.展开更多
目的获得15个短串联重复(short tandem repeat,STR)基因座在四川汉族人群中的群体遗传学数据。方法654份血样采自四川地区无血缘关系的汉族个体。Chelex法提取DNA,PCR复合扩增,自动基因分析仪电泳,收集电泳结果数据,基因扫描分析软件计...目的获得15个短串联重复(short tandem repeat,STR)基因座在四川汉族人群中的群体遗传学数据。方法654份血样采自四川地区无血缘关系的汉族个体。Chelex法提取DNA,PCR复合扩增,自动基因分析仪电泳,收集电泳结果数据,基因扫描分析软件计算扩增产物片段相对大小,基因分型软件进行样本基因型分型。结果全部样本的每个STR基因座都获得了清晰的基因型分型结果。15个STR基因座的基因型分布符合Hardy-Weinberg平衡。15个STR基因座的杂合度介于0.6101—0.8654之间。累计非父排除率和累计个人识别率为0.999998766和>0.999999999。结论经1次扩增电泳可获得15个STR基因座的基因型分型结果,累计非父排除率和累计个人识别率较高,适合作为四川汉族人群的遗传标记,用于人类学、疾病连锁分析、法医学亲权鉴定和个体识别等领域的研究。展开更多
基金ThisworkwassupportedbytheScientificResearchItemofXi’ancity (No .2 0 0 2 3 9)
文摘Objective To establish the northwest database of short tandem repeat(STR) loci in forensic medicine. Methods Bloodstains or whole blood samples were collected from the unrelated prisoners in Xi'an city. Genetic distribution for 13 STR loci and amelogenin locus were determined in prisons based on GeneScan. One primer for each locus was labeled with the fluorescent by 5 FAM, JOE, or NED. The forensic database were generated by using multiple amplification, GeneScan, genotype, and genetic distribution analysis. Results 113 alleles and 302 genotypes were observed, with the corresponding frequency between 0.0050-0.5250 and 0.0100-0.4100. The mean H was 0.7667. The accumulative DP was 0.9999999,. The accumulative EPP was 0.9999999. The scope of PIC was 0.6036- 0.8562 . PM was less than 10 -11 . The observed and expected genotype frequencies were evaluated using χ 2 test and all were in accordance with Hardy Weinberg equilibrium ( P > 0.05 ). Conclusion STR loci is an ideal genetic marker with powerful polymorphism and stable heredity. It can be used for individual identification and paternity in forensic medicine. The forensic DNA database model can be established successfully.
文摘利用多重PCR五色荧光（6FAM、VIC、NED、PET、LIZ）自动化检测技术检测西藏自治区藏族人群DSS1179、D21S11、D7S820、CSF1PO、D3S1358、TH01、D13S317、D16S539、D2S1338、D19S433、VWA、TPOX、D18S51、D5S818及FGA共15个STR基因座遗传多态性，获得15个STR基因座的群体遗传学数据。结果显示：15个STR基因座的基因型分布符合Hardy-Weinberg平衡。15个STR基因座的个体鉴别力（Discrimination power,DP）在0．7555～0．9602之间，杂合度（Heterozygosity,H）在0．5651～0．8530之间，多态性信息含量（Polymorphism information content，PIC）在0．5528～0．8456之间，非父排除率（Probability of paternity exclusion，EPP）在0．3811～0．8549之间，累积个体鉴别力为0．999999999，累积非父排除率为0．999999998。15个短串联重复序列基因座适合作为西藏藏族人群的遗传标记，用于人类学、疾病连锁分析、法医学亲子鉴定和个体识别等领域的研究。
文摘目的：获得15个短串联重复序列（Short tandem repeat, STR）基因座在辽宁地区汉族人群的等位基因频率分布及群体遗传学数据.方法：调查15个STR（D8S1179、D21S11、D7S820、CSF1PO、D3S1358、TH01、D13S317、D16S539、2S1338、D19S433、VWA、TPOX、D18S51、D5S818、FGA）在141名辽宁汉族人群中等位基因频率分布.提取基因组DNA,利用多重PCR和五色荧光（6FAM、VIC、NED、PET、LIZ）自动化检测技术,获得基因分型图,然后进行统计分析,获得15个STR基因座等位基因频率及群体遗传学指标.结果：15个STP在辽宁地区汉族人群中具有较高的遗传多态性,15个STR基因座分别检测到5～16种等位基因,共136个,频率分布在0.0035～0.5248之间,DP值在0.7896～0.9528之间,H值在0.6225～0.8534之间,PIC值在0.6140～0.8480之间,EPP值在0.4324～0.8281之间,累积个体鉴别力为0.99999999,累积非父排除率为0.99999999.结论：15个STR位点适合作为辽宁地区汉族人群的遗传标记,用于人类学、疾病连锁分析、法医学亲子鉴定和个体识别等领域的研究.
文摘目的获得15个短串联重复(short tandem repeat,STR)基因座在四川汉族人群中的群体遗传学数据。方法654份血样采自四川地区无血缘关系的汉族个体。Chelex法提取DNA,PCR复合扩增,自动基因分析仪电泳,收集电泳结果数据,基因扫描分析软件计算扩增产物片段相对大小,基因分型软件进行样本基因型分型。结果全部样本的每个STR基因座都获得了清晰的基因型分型结果。15个STR基因座的基因型分布符合Hardy-Weinberg平衡。15个STR基因座的杂合度介于0.6101—0.8654之间。累计非父排除率和累计个人识别率为0.999998766和>0.999999999。结论经1次扩增电泳可获得15个STR基因座的基因型分型结果,累计非父排除率和累计个人识别率较高,适合作为四川汉族人群的遗传标记,用于人类学、疾病连锁分析、法医学亲权鉴定和个体识别等领域的研究。
