Genetic polymorphisms of three loci and implication to forensic medicine

To obtain population genetic data of short tandem repeat (STR) locus D2S1327, D1S1390, and D11S2008 and to investigate the disparity of allelic frequency distributions among populations from different regions. Blood samples of 300 unrelated individuals from Chengdu (Han), Bangkok (Thai) and Maint (G...

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Published inSichuan da xue xue bao. Journal of Sichuan University. Yi xue ban Vol. 37; no. 2; p. 200
Main Authors Liu, Zhi-Yong, Zhang, Bao-Hua, Zhu, Yin-Hua, Chen, Guo-Di, Yu, Lin, Han, Jun-Ge, Lü, Mei-Li, Zhang, Lin
Format Journal Article
LanguageChinese
Published China 01.03.2006
Subjects
China
Forensic Medicine
Gene Frequency
Genetics, Population
Genotype
Humans
Microsatellite Repeats - genetics
Polymorphism, Genetic - genetics
China
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Summary:To obtain population genetic data of short tandem repeat (STR) locus D2S1327, D1S1390, and D11S2008 and to investigate the disparity of allelic frequency distributions among populations from different regions. Blood samples of 300 unrelated individuals from Chengdu (Han), Bangkok (Thai) and Maint (Germany) were taken and analyzed with single PCR, polyacrylamide gel electrophoresis and silver staining. In the three loci, 9, 6, and 8 alleles and 32,14, and 22 genotypes were found respectively. The observed heterozygosity of 79%-82%, 63.0%-74.3%, and 72.0%-74.3% and discrimination power of 87.8%-92.6%, 79.6%-82.5%, and 87.6%-89.0% were identified for the three loci respectively. The genotype distributions of the three loci in the three populations fitted well with Hardy-Weinberg equilibrium. There was no significant difference in allelic frequency distributions among the three populations. The methods described in this paper are easy to perform and have high sensitivities. The discrimination power and exclusion
ISSN:1672-173X