中国政法大学证据科学教育部重点实验室,北京 100088
徐妍,硕士生,研究方向:法医物证学,E-mail:15732189176@163.com
收稿:2022-03-03,
纸质出版:2022-07-20
移动端阅览
徐妍,刘岩,郝世诚等.北方汉族31个X染色体短串联重复片段突变及遗传多态性研究[J].中山大学学报(医学科学版),2022,43(04):511-521.
XU Yan,LIU Yan,HAO Shi-cheng,et al.Mutation and Genetic Polymorphism of 31 X-STR Loci in Northern Han Nationality[J].Journal of Sun Yat-sen University(Medical Sciences),2022,43(04):511-521.
徐妍,刘岩,郝世诚等.北方汉族31个X染色体短串联重复片段突变及遗传多态性研究[J].中山大学学报(医学科学版),2022,43(04):511-521. DOI: 10.13471/j.cnki.j.sun.yat-sen.univ(med.sci).2022.0401.
XU Yan,LIU Yan,HAO Shi-cheng,et al.Mutation and Genetic Polymorphism of 31 X-STR Loci in Northern Han Nationality[J].Journal of Sun Yat-sen University(Medical Sciences),2022,43(04):511-521. DOI: 10.13471/j.cnki.j.sun.yat-sen.univ(med.sci).2022.0401.
目的
2
调查31个X-STR基因座在中国北方汉族的遗传多态性、连锁不平衡情况和突变率。
方法
2
采集209个中国北方汉族健康志愿者家系样本,用Microreader
TM
19X和AGCU X19 STR荧光检测试剂盒检测,统计基因座的突变率。选取家系中父亲或母亲各207个样本,组成男性和女性无关个体组并进行遗传多态性研究和连锁不平衡检验。
结果
2
共检出344个等位基因,基因频率分布在0.001 6-0.810 0之间。其中多态性信息含量最丰富的基因座是DXS10135(PIC=0.912 4)。个体识别能力在男、女群体中分别为0.330 5-0.918 1、0.534 0-0.987 6。累积个人识别概率在男、女群体中分别为1-4.566 4×10
-19
、1-1.578 4×10
-31
。平均排除概率在三联体和二联体中分别为0.312 7-0.912 4、0.193 5-0.844 6。累积平均排除概率在三联体和二联体中分别为1-2.281 9×10
-17
、1-2.509 0×10
-12
。经分析,有1对X-STR(DXS10103-DXS10101)存在明显连锁不平衡现象。在414次减数分裂中观察到19个X-STR基因座有突变,平均突变率为0.002 3,突变率最高的基因座是DXS10135,为0.012 1。
结论
2
获得的31个X-STR遗传学数据为法医学鉴定提供了基础数据。DXS10103-DXS10101存在连锁不平衡,在应用时需按照单倍型频率分析。应用高突变率基因座时需保持谨慎,不要因为个别基因座不符合遗传规律而排除具有某种亲缘关系。
Objective
2
To investigate the genetic polymorphism, linkage disequilibrium and mutation rate of 31 X-STR loci in the Northern Han Chinese.
Methods
2
A total of 209 family samples of healthy volunteers in the Northern Han Chinese were selected. All samples were detected by AGCU X19 and Microreader
TM
19X fluorescence detection kits and the mutation rate of loci was counted. The mothers (
n
=207) and the fathers (
n
=207) in the families were selected, respectively, to form the group of unrelated male and female individuals for genetic polymorphism studies and linkage disequilibrium test.
Results
2
A total of 344 alleles were detected with gene frequencies ranging from 0.001 6 to 0.810 0. The locus with the most abundant polymorphism information content (PIC) was DXS10135 (PIC=0.912 4). Discrimination power (DP) was 0.330 5-0.918 1 and 0.534 0-0.987 6 in male and female groups respectively. The cumulative discrimination power was 1-4.566 4×10
-19
and 1-1.578 4×10
-31
in male and female groups respectively. Mean exclusion chance (MEC) was 0.312 7-0.912 4 and 0.193 5-0.844 6 in trios and duos. The cumulative mean exclusion chance was 1-2.281 9×10
-17
and 1-2.509 0×10
-12
in trios and duos respectively. After analysis, one pair of loci (DXS10103-DXS10101) had obvious linkage disequilibrium. Mutations at 19 X-STR loci were observed in 414 meiotic divisions, with an average mutation rate of 0.002 3. DXS10135 had the highest mutation rate of 0.012 1.
Conclusion
2
The obtained 31 X-STR genetic data provided basic data for forensic identification. DXS10103-DXS10101 shows linkage disequilibrium, so haplotype frequency could be counted in application. Care should be taken when using loci with high mutation, and don′t rule out some kind of kinship only because individual loci do not conform to the laws of inheritance.
曾祥培 , 李海霞 , 孙宏钰 . X-STR基因座的法医学应用研究进展 [J]. 中国司法鉴定 , 2010 , 1 : 58 - 62 .
Zeng XP , Li HX , Sun HY . The research progress of X chromosome STR loci in forensic genetics [J]. Chin J Forensic Sci , 2010 , 1 : 58 - 62 .
吴小洁 , 孙宏钰 , 张胤鸣 , 等 . 姐妹关系鉴定中X-STR分型的应用2例 [J]. 中国法医学杂志 , 2011 , 26 ( 6 ): 479 - 480 .
Wu XJ , Sun HY , Zhang YM , et al . Two cases of application of X-STR typing in sister relationship identification [J]. Chin J Forensic Med , 2011 , 26 ( 6 ): 479 - 480 .
张胤鸣 , 刘素娟 , 吴小洁 , 等 . X-STR分型用于祖孙关系鉴定1例 [J]. 法医学杂志 , 2012 , 28 ( 3 ): 236 - 237 .
Zhang YM , Liu SJ , Wu XJ , et al . A case of X-STR typing used to identify the relationship between grandparents and grandchildren [J]. J Forensic Med , 2012 , 28 ( 3 ): 236 - 237 .
Liu YX , Zhang WQ , Jia YS , et al . Multistep microsatellite mutation in a case of non-exclusion parentage [J]. Forensic Sci Int Genet , 2015 , 16 : 205 - 207 .
Diegoli TM . Forensic typing of short tandem repeat markers on the X and Y chromosomes [J]. Forensic Sci Int Genet , 2015 , 18 : 140 - 151 .
Hering S , Klimova A , Edelmann J . German population data for 18 X-STRs: a hexaplex PCR adding two clusters of X-STRs to the Argus X-12 set and expanding the German haplotype databases [J]. Int J Legal Med , 2020 , 134 ( 6 ): 2061 - 2062 .
Nakamura Y , Minaguchi K . Sixteen X-chromosomal STRs in two octaplex PCRs in Japanese population and development of 15-locus multiplex PCR system [J]. Int J Legal Med , 2010 , 124 ( 5 ): 405 - 414 .
任峥 , 曾祥培 , 陈文静 , 等 . 十二个X染色体STR基因座荧光标记复合扩增体系的法医学应用 [J]. 中山大学学报(医学科学版) , 2011 , 32 ( 1 ): 109 - 115 .
Ren Z , Zeng XP , Chen WJ , et al . Forensic application of twelve X chromosome strs fluorescence-labeled multiplex amplification system [J]. J Sun Yat-Sen Univ (Med Sci) , 2011 , 32 ( 1 ): 109 - 115 .
He G , Li Y , Zou X , et al . X-chromosomal STR-based genetic structure of Sichuan Tibetan minority ethnicity group and its relationships to various groups [J]. Int J Legal Med , 2018 , 132 ( 2 ): 409 - 413 .
García MG , Gusm OL , Catanesi CI , et al . Mutation rate of 12 X-STRs from investigator Argus X-12 kit in Argentine population [J]. Forensic Sci Inter Gene Suppl , Series 6 2017 : e562-564 .
Diegoli TM , Linacre A , Schanfield MS , et al . Mutation rates of 15 X chromosomal short tandem repeat markers [J]. Int J Legal Med , 2014 , 128 ( 4 ): 579 - 587 .
李运丽 , 宋诚诚 , 郝世诚 , 等 . 高变异Y染色体短串联重复片段检验体系的建立及对北方汉族群体调查 [J]. 中山大学学报(医学科学版) , 2021 , 42 ( 4 ): 550 - 556 .
Li YL , Song CC , Hao SC , et al . Establishment of high mutation Y-Chromosome short tandem repeat multiplex amplification system and investigation on Han ethnic group in northern China [J]. J Sun Yat-Sen Univ (Med Sci) , 2021 , 42 ( 4 ): 550 - 556 .
Brinkmann B , Klintschar M , Neuhuber F , et al . Mutation rate in human microsatellites: influence of the structure and length of the tandem repeat [J]. Am J Hum Genet , 1998 , 62 ( 6 ): 1408 -1415.
Weber JL , Wong C . Mutation of human short tandem repeats [J]. Hum Mol Genet , 1993 , 2 ( 8 ): 1123 - 1128 .
Wu W , Ren W , Hao H , et al . Mutation rates at 42 Y chromosomal short tandem repeats in Chinese Han population in eastern China [J]. Int J Legal Med , 2018 , 132 ( 5 ): 1317 - 1319 .
侯一平 , 丛斌 , 王保捷 , 等 . 法医物证学 [M]. 人民卫生出版社 , 2020 年, 95 .
Hou YP , Cong B , Wang BJ , et al . Forensic genetics [M]. People’s Med Publ Press , 2020 , 95 .
Chen M , Ren H , Liu ZY , et al . Genetic polymorphisms and mutation rates of 16 X-STRs in a Han Chinese population of Beijing and application examples in second-degree kinship cases [J]. Int J Legal Med , 2020 , 134 ( 1 ): 163 - 168 .
Szibor R . X-chromosomal markers: past, present and future [J]. Forensic Sci Int Genet , 2007 , 1 ( 2 ): 93 - 99 .
0
浏览量
288
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621
