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[Polymorphisms of 19 STR Loci in Guizhou Han Population and Their Forensic Application]
Q S Zhao1,2, Z Ren1, H L Zhang1
1Department of Forensic Medicine, Guizhou Medical University, Guiyang 550025, China.
Objectives:
To investigate the allelic distribution of 19 autosomal STR loci in Guizhou Han population, and to estimate the forensic application value.
Methods:
The 19 autosomal STR loci in 520 unrelated healthy individuals from Guizhou Han population were studied using Goldeneye™ 20A kit. The 310 genetic analyzer was used for capillary electrophoresis, and the GeneMapper®ID v3.1 for genotyping.
Results:
The heterozygosis, the discrimination power, the probability of exclusion, the polymorphism information content, the cumulative discrimination power and the cumulative probability of exclusion of the 19 STR loci were 0.603 8-0.916 4, 0.790 0-0.985 6, 0.295 5-0.826 9, 0.553 5-0.908 9, 1-1.230 0×10⁻²² and 0.999 999 99, respectively. Compared with other five Han populations in pairwise allelic frequencies, Guizhou Han only had significant differences with Shandong Han, Liaoning Han and Shanxi Han.
Conclusions:
The 19 autosomal STR loci such as D19S433 have a highly genetic polymorphic in Guizhou Han population, which have application values in the researches of population genetics and forensic genetics.
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