6个STR基因座在宁夏山区回族聚居区的多态性

<正> 128名无关个体血样,取自宁夏回族聚居之南部山区6县。Chelex法提取DNA,按Promega公司试剂盒操作方法进行D16S539、D7S820、D13S317、CSF1PO、TPOX、TH01等6个基因座的复合扩增,并进行聚丙烯酰胺变性胶电泳分离和银染检测,得到基因分型及各基因座等位基因频率分布(表1)。     

浙江汉族人群6个STR基因座的遗传多态性的调查

目的进一步完善浙江省汉族人群STR基因座遗传多态性的调查,为其应用提供基础数据。方法采用AmpF1STRSGMplus和AmpF1STRCoficer反应试剂盒,使用ABI310型基因分析仪对浙江汉族人群200名无关个体血样进行了D16S539、D2S1338、D19S433、TH01、TPOX和CSF1PO6个STR基因座遗传学分析。结果分别发现了9、15、15、11、8、10个等位基因,发现的基因型分别为23、42、35、19、16、17个,其分布经X2检验均符合Hardy-Weinberg平衡定律,并分别统计了6个STR基因座的H、DP、PM、PE及PIC参数。结论6个STR基因座适合法医学应用。     

DNATyper^TM15基因座的研究与选择

目的为研发复合扩增荧光检测试剂盒,对现有的STR基因座进行分析研究并优选新的高鉴别力基因座。方法收集汉族、锡泊族、畲族、壮族、藏族等5个民族群体血样共1200份,提取DNA,应用复合扩增方法检测1200名5个民族群体无关个体的24个基因座的等位基因分布。结果TPOX和TH01基因座的等位基因在5个民族群体中分布不平衡;D2S1338、D6S1043和Penta E等3个STR基因座在5个民族群体中均具有高度遗传多态性,等位基因频率分布均匀,在各群体间无显著差异,而且等位基因传递遵循孟德尔遗传规律。结论确定出DNATyperTM15试剂盒中的14个适合中国人群体遗传学特征和法医学应用的STR基因座。     

亲子鉴定中STR基因座的基因突变分析

目的探讨Identifiler^TM荧光标记复合扩增试剂盒15个STR基因座在亲子鉴定中的基因突变特点。方法应用Identifiler^TM荧光标记复合扩增试剂盒检测676例亲子鉴定案，对其中1～2个突变基因座加做HLA等位基因检测或Y—STR基因座检测。结果在认定亲子关系的676例中，观察1304次减数分裂，Identifiler^TM荧光标记复合扩增试剂盒中的15个基因座确定19例突变，其中D18S51基因座4例，D2S1338基因座3例，D8S1179、D16S539、vWA、D7S820、D13S317基因座各2例，D5S818和TH01基因座各1例，D21S11、FGA、D3S1358、D19S433、TPOX、CSF1P0基因座未见突变；一步突变的17例，二步突变的为1例，四步突变的1例；1个基因座发生突变的18例，2个基因座同时发生基因突变的为1例；突变来自父亲与来自母亲的比例为13：2，4例来源不能确定。结论用Identifiler^TM荧光标记复合扩增试剂盒检测到1—2个基因座发生突变，须增加对其它遗传标记的检测。     

TPOX基因座三个基因的检出及遗传多态性分析

研究 2个群体TPOX基因座遗传多态性及变异。应用PCR扩增、变性聚丙稀酰胺凝胶电泳结合银染技术对TPOX基因座进行检测。在 10 0例中国北方汉族及 93例南非两群体中各检出 7个等位基因 ,个人识别机率与非父排除率分别为 0 7978、 0 46 2 5和 0 914 1、 0 6 12 5。基因型频率分布符合Hardy Weinberg平衡。群体间比较结果显示 ,TPOX基因座存在明显的人种差别。另外 ,在 2个南非黑人个体中 ,各自检出了 3种TPOX基因片段 ,序列分析证实 ,它们在由特异性引物所限定的DNA片段区域内 ,除核心序列重复次数的差别外 ,其余序列完全相同。推测其是由染色体不等交换形成嵌合体所致。研究结果表明 :TPOX基因座属较高鉴别能力遗传标记 ,在法医学及人类遗传学研究中具有重要意义     

哈尔滨(地区)汉族人群F13A01、FESFPS、vWA基因座多态性

参照美国Ｐｒｏｍｅｇａ公司Ｇｅｎｅｐｒｉｎｔ试剂盒提供的方法 ,采用Ｆ13Ａ0 1、ＦＥＳＦＰＳ、ｖＷＡ三基因座复合扩增技术 ,对哈尔滨 (地区 )汉族人群中 16 3个无关个体的 3个基因座进行基因频率分布调查 ,现报告如下。1　结果与讨论通过对 16 3名无关个体的血样经酚、氯仿萃取法提取ＤＮＡ ,ＰＣＲ扩增 ,用标准等位基因作参照物 ,电泳分离 ,银染检测后 ,进行ＤＮＡ分型和统计学分析。Ｆ13Ａ0 1基因座观察到 4个等位基因 ,9个基因型 ;ＦＥＳＦＰＳ基因座观察到6个等位基因 ,13个基因型 ;ｖＷＡ基因座观察到 8个等位基因 ,2 3个基因型 ;…     

PowerPlex~(TM) 16体系在中国人群中罕见等位基因及其类型

目的 分析PowerPlexTM 16体系基因座在中国人群中的罕见等位基因及其类型。方法 应用PCR-STR和DNA序列分析技术,对4650个无关个体在15个STR基因座中的罕见等位基因进行检测。结果 在PowerPlexTM16体系中的D7S820、D16S539、Penta E基因座,检测到2种类型的罕见等位基因,而TH01、D21S11、D5S818、D13S317、Penta D、D8S1179、TPOX、FGA基因座检测出1种类型。其等位基因频率均较低(0.215‰-7.097‰)。结论 超出ladder范围的罕见等位基因序列比相邻等位基因增加(或减少)1个或数个重复单位,因碱基的插入或缺失的罕见等位基因出现在两等位基因之间。     

青岛地区人群CSF1PO-TPOX-TH01基因座的基因频率调查

短串联重复序列（STR）的遗传多态性已成为人类重要的遗传标记系统,为人类遗传学研究提供了丰富的信息量,在人类群体中具有分布广泛,高度多态性,扩增效率高等特点。目前除被用于基因作图及基因连锁分析外,已广泛用于法医学个体识别和亲权鉴定中。本文应用PCR技术进行STR复合扩增,对青岛地区汉族无关个体进行了群体调查,获得CSFIPO、TPOX、TH01三个基因座的基因频率分布,现报告如下：三材料与方法工．回样品ill名汉族无关个体抗凝血由青岛市红十字中心血站提供。l·2实验方法DNA模板的制备同文献［’。1·3PCR复合扩增试…     

多重PCR检测FFv三个基因座在景颇族人群中的遗传多态性

短串联重复序列（STR）是由几个碱基对作为核心单位串联重复形成的一类DNA序列,作者将3个STR基因座在同一反应体系中进行互不干扰的复合扩增,采用高分辨率的聚丙烯酰胺凝胶电泳分离、银染法显影技术,对云南省景颇族的F13A01,FESFPS和vWA等3个基因座等位基因的基因频率进行了调查,获得了满意的结果,显示了广阔的应用前景。F13A01基因座观察到8个等位基因、13个基因型;FESFPS基因应观察到7个等位基因、18个基因型;vWA基因应观察到7个等位基因、21个基因型。     

D3S1358基因座检出三条带分析

法医遗传学；染色体畸变；D3S1358基因座；三条带近年来在法医遗传学方面，已有报道TPOX、CSF1PO、FGA、D7S820、D5S818、D2S11、D16539、vWA和D18S51等基因座出现了三条带模式的等位基因。笔者在工作中遇到D3S1358基因座检出3个等位基因的情况，3个峰信号强度相近，现分析如下。     

Sequence variation in humans and other primates at six short tandem repeat loci used in forensic identity testing

A large number of alleles from the six different short tandem repeat (STR) loci FGA, D3S1358, vWA, CSF1PO, TPOX and TH01, used in human identity testing were sequenced to provide support for the robustness of fluorescent STR DNA typing by allele size. Sequence information for some of these loci (FGA, vWA, TH01) is an extension of published work, whereas no extensive sequence information is available with respect to the D3S1358, CSF1PO, and TPOX loci. Sequencing of alleles at each locus has provided quantitative data with respect to the true nucleotide length of common alleles, and of alleles that vary in length from the common alleles. All alleles that were identified as "off-ladder" alleles through fluorescent typing at these STR loci have proven to be true length variant alleles. Sequencing at the D3S1358 and CSF1PO loci allowed for the establishment of a common nomenclature for these loci. A correlation between percent stutter and the length of the core tandem repeat is demonstrated at the FGA locus. Alleles in which the core tandem repeat is interrupted by a repeat unit of different sequence have a reduced percent stutter. DNA samples from three non-human primates (chimpanzee, orangutan, and gorilla) were compared to the human sequences, and shown to differ markedly across loci with respect to their homology. The effects of primer binding site mutations on the amplification efficiency at a particular locus, and methods used to interpret amplification imbalance of heterozygous alleles at a locus is also addressed.     

云南佤族、怒族和独龙族CTT基因座的遗传多态性

目的 了解云南佤族、怒族和独龙族等3个少数民族的CSF1PO、TPOX和THO1基因座遗传多态性分布。方法 应用3个基因座在同一反应体系中进行互不干扰的多重PCR,采用聚丙烯酰胺凝胶电泳分离、银染法显影技术,对云南3个少数民族的基因座进行遗传多态性调查。结果 获得了云南省佤族、怒族和独龙族3个基因座的基因频率分布资料。结论3个基因座基因频率分布与Hardy-Weinberg平衡吻合良好,在不同群体中发现一些有意义的遗传差异。     

Allele frequencies for nine STR loci in Ovambo population using AmpFlSTR Profiler Kit

Allele frequencies for the nine short tandem repeat (STR) loci D3S1358, vWA, FGA, TH01, TPOX, CSF1PO, D5S818, D13S317, and D7S820 were investigated in 195 unrelated Ovambo (Bantus) population from Namibia. AmpFlSTR Profiler Kit was employed for amplification. For each locus, 6-19 alleles were observed. Comparison between Ovambo population data and that of other African populations was performed. AmpFlSTR Profiler detection system is a useful tool for individual identification in Ovambo population.     

Population study of the CSF1PO,TPOX and TH01 STR polymorphisms in east China

Allele and genotype frequencies of four short tandem repeat loci were determined in a population sample from east China by using PCR and fluorescence techniques. After denaturing PAGE, 9 alleles were identified for CSF1PO, 8 alleles for TPOX, and 7 alleles for TH01. All loci met Hardy-Weinberg expectations. In addition, the theoretical values of these loci for paternity and forensic casework were evaluated.     

广西壮、汉人群3个基因座的遗传多态性

本研究在同一反应体系,对CSFIPO、TPOX和TH013个STR基因应复合扩增,采用高分辨率的聚丙烯酰胺变性胶电泳分离、银染技术,对广西壮、汉人群进行遗传多态性研究.结果表明3个基因应在2个群体均具有较高的Dp值,在法医学个体识别及亲权鉴定方面有重要价值.     

Han nation population in Shangdong province of china data for nine STR loci

Allele frequencies for nine STR loci (D3S1358, TH01, TPOX, CSF1PO, D16S539, D7S820, D2S1338, D8S1179, D18S535) were obtained from a sample of 100/86 unrelated healthy individual born in Shangdong province of China. chi(2)-Test indicated that the distribution of genotypes agreed with Hardy-Weinberg equilibrium.     

STR data (CD4, CSF1PO, F13A01, FES/FPS, MBPB, TH01, TPOX) from North Portugal.

Allele frequencies for seven STRs (CD4, CSF1PO, F13A01, FES/FPS, MBPB, TH01, TPOX) were estimated from samples (sized between 300 and 940) of unrelated individuals born in North Portugal.     

荧光标记复合扩增STR检测技术在法医学中的应用

本研究用荧光标记8个STR位点及性别位点,于同一试管同步进行扩增后,在PE377全自动测序仪于一个泳道内,成功地对各位点进行基因型分离检测.将此方法应用于30多起案件检验,均取得满意结果.     

Population genetics of nine STR loci: TH01, TPOX, CSF1PO, vWA, FESFPS, F13A01, D13S317, D7S820 and D16S539 in a Korean population

Allele frequencies for nine STR loci namely, TH01, TPOX, CSF1PO, vWA, FESFPS, F13A01, D13S317, D7S820 and D16S539 were obtained from a sample of 437 unrelated individuals living in Chungcheong-do, South Korea.     

Population study of six short tandem repeat loci in Antalya,Turkey

Population studies of six short tandem repeat loci were carried out in a sample of unrelated Turkish individuals living in Antalya province, southwest Turkey. After electrophoresis in polyacrylamide gels, 8 alleles could be identified for THO1, 6 for TPOX and CSF1PO, 9 for VWA, 7 for FES, and 14 for F13A01. There was a significant deviation from the Hardy-Weinberg equilibrium between observed and expected values for FES and TPOX loci.