The AGCU X Plus STR system is a newly developed multiplex PCR kit that detects 32 X-chromosomal STR loci simultaneously.These are DXS6807,DXS9895,linkage group 1(DXS10148,DXS10135,DXS8378),DXS9902,DXS6795,DXS6810,DXS1...The AGCU X Plus STR system is a newly developed multiplex PCR kit that detects 32 X-chromosomal STR loci simultaneously.These are DXS6807,DXS9895,linkage group 1(DXS10148,DXS10135,DXS8378),DXS9902,DXS6795,DXS6810,DXS10159,DXS10162,DXS10164,DXS7132,linkage group 2(DXS10079,DXS10074,DXS10075),DXS981,DXS6800,DXS6803,DXS6809,DXS6789,DXS7424,DXS101,DXS7133,GATA172D05,GATA165B12,linkage group 3(DXS10103,HPRTB,DXS10101),GATA31E08 and linkage group 4(DXS8377,DXS10134,DXS7423).A major advantage of this kit is that it takes into account linkage between loci,in addition to detecting more X-STR loci.In order to evaluate the forensic application of 32 X-STR fl uorescence amplifi cation system,PCR settings,sensitivity,species specifi city,stability,DNA mixtures,concordance,stutter,sizing precision,and population genetics investigation were evaluated according to the Scientific Working Group on DNA Analysis Methods(SWGDAM)developmental validation guidelines.The study showed that the genotyping results of each locus were signifi cantly accurate when the DNA template was at least 62.5 pg.Complete profi les were obtained for the 1∶1 and 1∶3 combinations.A total of 209 unrelated individuals from Southern Chinese Han community,consisting of 84 females and 125 males,were selected for population studies,and 285 allele profi les were detected from 32 X-STR loci.The polymorphism information content(PIC)ranged from 0.2721 in DXS6800,to 0.9105 in DXS10135,with an average of 0.6798.DXS10135(PIC=0.9105)was the most polymorphic locus,with discrimination power(DP)of 0.9164 and 0.9871 for the male and female.The cumulative PD_(F),PD_(M),MEC_(trio) and MEC_(duo) valu es were all greater than 0.999999999.There were 78 different DXS10103-HPRTB-DXS10101 haplotypes among the 125 males,and the haplotype diversity was 0.9810.There was no signifi cant difference in the cumulative PD_(F),PD_(M),MEC_(trio) and MEC_(duo) values whether considering linkage or not.In summary,the new X-STR multiplex typing system is effective and reliable,which can be useful in human genetic analysis and kinship testing as a potent complement to autosomal STR typing.展开更多
目的分析、比较广西地区汉族与壮族人群X-STR基因座的分布频率及遗传学参数。方法应用Investigator A r g u sX-12试剂对广西地区1267名健康成年人进行D X S 8378等12个X-S T R分型检测,其中612名汉族作为对照组,另外655名壮族作为研究...目的分析、比较广西地区汉族与壮族人群X-STR基因座的分布频率及遗传学参数。方法应用Investigator A r g u sX-12试剂对广西地区1267名健康成年人进行D X S 8378等12个X-S T R分型检测,其中612名汉族作为对照组,另外655名壮族作为研究组,比较两组间基因座的分布频率以及基因座遗传学参数。结果①两组等位基因分布均符合HardyWeinberg平衡,其中汉族检测出128种基因型,基因分布频率为0.0029～0.7872,壮族检测出145种基因型,基因分布频率为0.003 5～0.658 1。②对照组汉族的多态信息量分布为0.388 6～0.896 6,研究组壮族的多态信息量分布为0.405 9～0.889 3;对照组汉族的杂合度分布为0.3796～0.8091,研究组壮族的杂合度分布为0.5018～0.8255;对照组MECduo与MECtrio的分布频率为0.3677～0.6850与0.4357～0.8421,研究组MECduo与MECtrio的分布频率为0.4233～0.8217与0.4755～0.9128;对照组个体识别力及非父排除率分别为0.5558～0.8722与0.4711～0.8227,研究组的个体识别力及非父排除率分别为0.7874～0.9781与0.5201～0.8647。结论广西地区汉族与壮族的X-STR基因座分布均符合Hardy-Weinberg平衡,但是壮族的X-STR基因座呈现出高度多态性,与汉族有较多差别,对于本地区法医亲权鉴定具有一定的指导意义。展开更多
目的研究山东地区汉族人群15个X-STR基因座的遗传多态性,建立法医学应用数据库。方法采用Primer Premier 5.0软件设计多重PCR引物,用4色荧光(FAM、VIC、NED、TET)进行标记,建立多重PCR体系,对山东地区无关汉族人群481例个体(女性295例,...目的研究山东地区汉族人群15个X-STR基因座的遗传多态性,建立法医学应用数据库。方法采用Primer Premier 5.0软件设计多重PCR引物,用4色荧光(FAM、VIC、NED、TET)进行标记,建立多重PCR体系,对山东地区无关汉族人群481例个体(女性295例,男性186例)的15个X染色体上筛选的STR基因座(DXS10011、DXS101、GATA165B12、DXS6795、DXS6800、DXS6801、DXS6803、DXS7132、DXS7133、DXS7423、DXS7424、DXS8377、DXS8378、DXS9898和HPRTB)进行检测。结果所检测的15个X-STR基因座中,GATA165B12、DXS6800、DXS6803、DXS7133与DXS7423在中国山东汉族人群中具有中度多态性,其余10个基因座都具有高度多态性(PIC>0.5,H>0.5)。群体中男性样本之间没有检测到共享单倍型。结论构建的荧光标记复合扩增体系为建立中国山东汉族人群X-STR基因座群体遗传学数据库及其法医学应用提供了有效的手段。展开更多
文摘The AGCU X Plus STR system is a newly developed multiplex PCR kit that detects 32 X-chromosomal STR loci simultaneously.These are DXS6807,DXS9895,linkage group 1(DXS10148,DXS10135,DXS8378),DXS9902,DXS6795,DXS6810,DXS10159,DXS10162,DXS10164,DXS7132,linkage group 2(DXS10079,DXS10074,DXS10075),DXS981,DXS6800,DXS6803,DXS6809,DXS6789,DXS7424,DXS101,DXS7133,GATA172D05,GATA165B12,linkage group 3(DXS10103,HPRTB,DXS10101),GATA31E08 and linkage group 4(DXS8377,DXS10134,DXS7423).A major advantage of this kit is that it takes into account linkage between loci,in addition to detecting more X-STR loci.In order to evaluate the forensic application of 32 X-STR fl uorescence amplifi cation system,PCR settings,sensitivity,species specifi city,stability,DNA mixtures,concordance,stutter,sizing precision,and population genetics investigation were evaluated according to the Scientific Working Group on DNA Analysis Methods(SWGDAM)developmental validation guidelines.The study showed that the genotyping results of each locus were signifi cantly accurate when the DNA template was at least 62.5 pg.Complete profi les were obtained for the 1∶1 and 1∶3 combinations.A total of 209 unrelated individuals from Southern Chinese Han community,consisting of 84 females and 125 males,were selected for population studies,and 285 allele profi les were detected from 32 X-STR loci.The polymorphism information content(PIC)ranged from 0.2721 in DXS6800,to 0.9105 in DXS10135,with an average of 0.6798.DXS10135(PIC=0.9105)was the most polymorphic locus,with discrimination power(DP)of 0.9164 and 0.9871 for the male and female.The cumulative PD_(F),PD_(M),MEC_(trio) and MEC_(duo) valu es were all greater than 0.999999999.There were 78 different DXS10103-HPRTB-DXS10101 haplotypes among the 125 males,and the haplotype diversity was 0.9810.There was no signifi cant difference in the cumulative PD_(F),PD_(M),MEC_(trio) and MEC_(duo) values whether considering linkage or not.In summary,the new X-STR multiplex typing system is effective and reliable,which can be useful in human genetic analysis and kinship testing as a potent complement to autosomal STR typing.
文摘目的分析、比较广西地区汉族与壮族人群X-STR基因座的分布频率及遗传学参数。方法应用Investigator A r g u sX-12试剂对广西地区1267名健康成年人进行D X S 8378等12个X-S T R分型检测,其中612名汉族作为对照组,另外655名壮族作为研究组,比较两组间基因座的分布频率以及基因座遗传学参数。结果①两组等位基因分布均符合HardyWeinberg平衡,其中汉族检测出128种基因型,基因分布频率为0.0029～0.7872,壮族检测出145种基因型,基因分布频率为0.003 5～0.658 1。②对照组汉族的多态信息量分布为0.388 6～0.896 6,研究组壮族的多态信息量分布为0.405 9～0.889 3;对照组汉族的杂合度分布为0.3796～0.8091,研究组壮族的杂合度分布为0.5018～0.8255;对照组MECduo与MECtrio的分布频率为0.3677～0.6850与0.4357～0.8421,研究组MECduo与MECtrio的分布频率为0.4233～0.8217与0.4755～0.9128;对照组个体识别力及非父排除率分别为0.5558～0.8722与0.4711～0.8227,研究组的个体识别力及非父排除率分别为0.7874～0.9781与0.5201～0.8647。结论广西地区汉族与壮族的X-STR基因座分布均符合Hardy-Weinberg平衡,但是壮族的X-STR基因座呈现出高度多态性,与汉族有较多差别,对于本地区法医亲权鉴定具有一定的指导意义。
文摘目的研究山东地区汉族人群15个X-STR基因座的遗传多态性,建立法医学应用数据库。方法采用Primer Premier 5.0软件设计多重PCR引物,用4色荧光(FAM、VIC、NED、TET)进行标记,建立多重PCR体系,对山东地区无关汉族人群481例个体(女性295例,男性186例)的15个X染色体上筛选的STR基因座(DXS10011、DXS101、GATA165B12、DXS6795、DXS6800、DXS6801、DXS6803、DXS7132、DXS7133、DXS7423、DXS7424、DXS8377、DXS8378、DXS9898和HPRTB)进行检测。结果所检测的15个X-STR基因座中,GATA165B12、DXS6800、DXS6803、DXS7133与DXS7423在中国山东汉族人群中具有中度多态性,其余10个基因座都具有高度多态性(PIC>0.5,H>0.5)。群体中男性样本之间没有检测到共享单倍型。结论构建的荧光标记复合扩增体系为建立中国山东汉族人群X-STR基因座群体遗传学数据库及其法医学应用提供了有效的手段。
