福建汉族人群21个常染色体STR基因座的遗传多态性

摘要

目的：调查福建汉族人群21个常染色体STR基因座多态性参数，评估GlobalFilerTM Express试剂盒的法医学应用价值。方法应用GlobalFilerTM Express试剂盒复合扩增检测741名福建汉族无关个体，计算21个常染色体STR基因座的群体遗传学参数。结果21个常染色体STR基因座的基因型分布均符合Hardy-Weinberg平衡（P>0.05），21个STR遗传标记均具有高度多态性，杂合度为0.589~0.914，个体识别率为0.754~0.992，多态信息含量为0.520~0.940，非父排除率为0.278~0.825。其中以SE33基因座多态性程度最高。结论 GlobalFilerTM Express试剂盒的21个STR基因座有较强的系统效能，该试剂盒可应用于福建汉族人群的法医学个体识别及亲权鉴定。%Objective To investigate the genetic polym orphism s of 21 autosom al STR loci of Fujian H an population and evaluate the forensic application value of GlobalFilerTM E xpress kit. Methods A m plified w ith GlobalFilerTM E xpress kit, DNA sam ples were obtained from 741 unrelated individuals of Fujian H an population. The population genetics param eters of 21 autosom al STR loci were calculated. Results The 21 autosom al STR loci were found to be no deviation from Hardy-Weinberg equilibration (P>0.05) and relatively abundant in high polym orphism . H eterozygosity ranged from 0.589 to 0.914, pow er of dis-crim ination ranged from 0.754 to 0.992, polym orphic inform ation content ranged from 0.520 to 0.940, and pow er of exclusion ranged from 0.278 to 0.825. The SE33 locus was the highest degree in poly-m orphism . Conclusion The 21 STR loci of GlobalFilerTM E xpress kit have high value in discrim ination pow er and can be useful in personal identification and paternity test in Fujian H an population.