MicroreaderTM 23HS Plex ID System中23个常染色体STR基因座在中国北方汉族人群中多态性调查
doi: 10.12259/j.issn.2095-610X.S20240723
Polymorphism Investigation of 23 Autosome STR Loci in the MicroreaderTM 23HS Plex ID System in Han Population in Northern China
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摘要:
目的 评价MicroreaderTM 23HS Plex ID System试剂盒中包含的23个常染色体STR基因座在中国北方汉族人群中等位基因频率分布,获得群体遗传数据,探究其在法医学中的应用价值。 方法 使用MicroreaderTM 23HS Plex ID System试剂盒对中国北方汉族人群548例无关样本DNA进行检测,收集分型数据,计算各基因座的等位基因频率、样本的杂合度(heterozygosity,H) 、这些常染色体STR基因座的多态信息含量(polymorphism information content,PIC)、个体识别力(power of discrimination,DP)和非父排除率(probability of paternity exclusion,PE)并使用统计软件对各基因座是否符合Hardy-Weinberg平衡进行检验;同时对MicroreaderTM 23HS Plex ID System的累积个体识别能力(CDP)和累积非父排除率( CPE)进行计算。 结果 在548例无关样本中23个STR基因座共计检出260个等位基因,等位基因频率为0.0009~0.5902,H为0.611~0.885,PIC为0.577~0.864,DP为0.815~0.973(平均DP为0.922),PE为0.089~0.406,CDP=1-3.663×10-27,CPE=1-2.668×10-16,所有基因座等位基因的分布符合Hardy-Weinberg平衡。 结论 MicroreaderTM 23HS Plex ID System的23个基因座在中国北方汉族人群中具有良好的多态性,在法医学个人识别、群体遗传学研究、亲子鉴定,特别是复杂亲缘关系鉴定中应用价值较高。 Abstract:Objective To obtain the distribution of allele frequency and population genetic data of 23 autosomal STR loci contained in the MicroreaderTM 23HS Plex ID System kit in the Han population of northern China, and explore its application value in forensic medicine. Methods The MicroreaderTM 23HS Plex ID System kit was used to detect the DNA of 548 unrelated samples which from the Han population in northern China. Then, the allele frequencies, heterozygosity(H) in the samples, polymorphism information content(PIC), power of discrimination(DP), and probability of paternity exclusion(PE) were calculated and Hardy-Weinberg equilibrium was tested on each locus based on the genotyping data of 548 samples we collected. The cumulative individual identification ability (CDP) and cumulative non-paternity exclusion rate (CPE)of the MicroreaderTM 23HS Plex ID System were also calculated. Results A total of 260 alleles were detected in 548 unrelated samples from 23 STR loci which conformed to Hardy-Weinberg equilibrium. And the alleles frequencies ranged from 0.0009 to 0.5902, H ranged from 0.611 to 0.885, PIC ranged from 0.577 to 0.864, DP ranged from 0.815 to 0.973 (mean DP was 0.922) and PE ranged from 0.089 to 0.406. At the same time, the CDP of MicroreaderTM 23HS Plex ID System was 1-3.663×10-27 and CPE was 1-2.668×10-16. Conclusion The 23 loci of MicroreaderTM 23HS Plex ID System have a good polymorphism in the north Chinese Han population, and have high application value in population genetics research, forensic personal identification, paternity testing and complex kinship identification. -
Key words:
- Forensic genetics /
- Genetic polymorphism /
- STR loci
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表 1 23个常染色体STR基因座等位基因频率分布(n = 548)(1)
Table 1. Allele frequency distribution of 23 autosomal STR loci (n = 548)(1)
D10S2325 D11S4463 D13S305 D16S3391 D19S400 基因型 频率 基因型 频率 基因型 频率 基因型 频率 基因型 频率 6 0.0138 9 0.0018 12 0.0037 8 0.0009 7 0.0009 7 0.3226 11 0.0009 13 0.0101 9 0.0419 8 0.1564 8 0.0194 12 0.0583 14 0.0221 10 0.1883 9 0.0505 9 0.0652 13 0.2054 15 0.0419 11 0.0563 10 0.0496 10 0.0991 14 0.3382 16 0.0948 12 0.151 11 0.3507 11 0.1321 14.2 0.0009 17 0.1575 13 0.2852 12 0.1673 12 0.1438 15 0.2613 17.2 0.0009 14 0.2111 13 0.0878 13 0.0991 16 0.1132 18 0.2503 15 0.0534 14 0.069 14 0.0555 17 0.0221 18.2 0.0009 16 0.0037 15 0.0525 15 0.0222 18 0.0027 18.3 0.0009 D18S1364 16 0.0092 16 0.011 D12S391 19 0.2275 基因型 频率 17 0.0009 17 0.0055 基因型 频率 20 0.1371 11 0.0009 D1S2142 18 0.0009 15 0.0129 20.2 0.0009 12 0.0353 基因型 频率 19 0.0009 16 0.0101 21 0.0429 13 0.1906 12 0.3479 19.3 0.0009 17 0.1162 22 0.0092 14 0.1906 13 0.1193 20 0.0027 18 0.2491 23 0.0009 15 0.2031 14 0.041 21 0.0037 19 0.2193 D1S549 16 0.1985 15 0.2077 22 0.0009 20 0.1499 基因型 频率 17 0.0391 16 0.1861 23 0.0009 21 0.0979 9 0.0009 18 0.0838 17 0.0958 25 0.0009 22 0.0729 11 0.0651 19 0.0534 18 0.0101 26 0.0009 23 0.0438 12 0.1531 20 0.0101 D2S1360 27 0.0009 24 0.0175 13 0.1009 D22S1045 基因型 频率 31 0.0009 25 0.0101 14 0.2663 基因型 频率 15 0.0009 D20S161 26 0.0046 15 0.3232 11 0.2406 19 0.0055 基因型 频率 D20S85 16 0.0709 12 0.0037 20 0.0037 15 0.0602 基因型 频率 16.2 0.0009 13 0.0082 21 0.175 16 0.2263 10 0.4301 17 0.0138 14 0.0119 22 0.5902 17 0.378 11 0.0101 D21S2055 15 0.2454 23 0.1235 18 0.1319 12 0.0486 基因型 频率 16 0.2903 24 0.0306 19 0.1245 13 0.0888 9.1 0.0989 17 0.1783 25 0.0259 20 0.0612 14 0.1542 10.1 0.0082 18 0.0175 26 0.0184 21 0.0156 15 0.164 11.1 0.0027 19 0.0064 27 0.0166 22 0.0009 16 0.0898 12.1 0.0018 21 0.0009 28 0.0092 表 2 23个STR基因座群体遗传学参数(n = 548)
Table 2. Population genetic parameters of 23 STR loci (n = 548)
基因座 等位基因数 H PIC DP PE P D10S2325 23 0.837 0.815 0.955 0.860 0.6301 D11S4463 10 0.768 0.722 0.905 0.724 0.173 D12S391 12 0.845 0.820 0.955 0.855 0.6883 D13S305 16 0.832 0.806 0.949 0.838 0.2321 D16S3391 9 0.792 0.775 0.934 0.796 0.8283 D18S1364 10 0.845 0.816 0.953 0.846 0.7616 D19S400 11 0.794 0.776 0.937 0.813 0.4041 D1S2142 7 0.792 0.749 0.921 0.764 0.9114 D1S549 9 0.772 0.748 0.920 0.764 0.3281 D20S161 8 0.763 0.734 0.913 0.752 0.5123 D20S85 9 0.754 0.723 0.910 0.752 0.2897 D21S2055 21 0.885 0.864 0.973 0.911 0.5406 D22S1045 10 0.772 0.728 0.906 0.722 0.4319 D2S1360 13 0.611 0.577 0.815 0.594 0.8615 D2S1776 9 0.755 0.704 0.895 0.709 0.1836 D2S441 12 0.790 0.752 0.922 0.769 0.6277 D3S1545 12 0.774 0.726 0.907 0.730 0.2043 D3S1744 9 0.797 0.797 0.945 0.830 0.4183 D3S2459 11 0.796 0.777 0.934 0.794 0.8106 D4S2408 6 0.750 0.702 0.891 0.686 0.3683 D6S1017 7 0.703 0.671 0.872 0.651 0.3375 D7S1517 16 0.859 0.862 0.971 0.901 0.1698 D9S2157 10 0.796 0.755 0.923 0.770 0.6738 H:杂合度;PIC:多态信息含量;DP:个体识别力;PE:非父排除率;P:Hardy-Weinberg不平衡精确检验的概率值,P > 0.05表明该基因座符合Hardy-Weinberg平衡。 -
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