河北汉族人群四个X染色体短串联重复序列基因座遗传多态性研究

Genetic polymorphism of four X chromosome short temden repeats loci in Hebei Han population

目的调查DXS6800、DXS6797、GATA172D05、DXS9864个基因座在河北汉族人群中的遗传多态性。方法无关个体样本基因组DNA的提取采用酚-氯仿法,家系和腐败降解检材基因组DNA的提取采用Chelex-100法。用PCR和变性聚丙烯酰胺凝胶电泳及DNA序列分析河北汉族150名无关男性及150名无关女性个体DXS6800、DXS6797、GATA172D05、DXS9864个基因座的遗传多态性。结果4个基因座共检测到25个等位基因,男性个体共检出138种单倍型,男性单倍型多样性为0.9986。结论DXS6800、DXS6797、GATA172D05、DXS9864个基因座的多态性数据为X染色体短串联重复序列数据库的建立提供了河北汉族人群的群体遗传学资料。

Objective To investigate the polymorphism of loci DXS6800, DXS6797, GATA172D05, DXS986 four loci in Hebei Han population. Methods The genome DNA of unrelated individuals, the families and rotten materials were extracted with phenol-chloroform method and Chelex-100 method,respectively. The PCR products were detected by the polyacrylamide gel electrophoresis and DNA sequencing analysis. Results Among 150 unrelated males and 150 unrelated females from Hebei Han population, 25 alleles were found in the 4 loci. One hundred and thirty-eight haplotypes of the male were detected. The haplotype diversity reached 0.9986. Conclusion The findings provided the polymorphic data of DXS6800, DXS6797, GATA172D05, and DXS986 loci in Hebei Han population. The four loci are relatively abundant in polymorphic information for identification and the obtained data of Hebei Han population can be applied to the X-STR genetic data bank.