Genetic polymorphisms of short tandem repeat loci D4S2368, D6S1043, D9S925 from Korean ethnic group of JiLin / 中华医学遗传学杂志

ABSTRACT

<p><b>OBJECTIVE</b>To understand the allele structure and genetic polymorphism at D4S2368, D6S1043, D9S925 short tandem repeat (STR) loci in Korean ethnic group of Jilin, and to construct a preliminary database.</p><p><b>METHODS</b>The allele frequencies of the three STRs loci in 310 unrelated individuals from Korean ethnic individuals were analyzed by polymerase chain reaction (PCR) and polyacrylamide gel electrophoresis (PAGE).</p><p><b>RESULTS</b>Seven, thirteen, and nine alleles were observed at D4S2368, D6S1043, and D9S925 loci, respectively, and all loci met Hardy-Weinberg equilibrium (except D6S1043). The statistical analysis of 3 STR loci showed the heterozygosities were more than 0.717, the polymorphic information contents (PIC) were more than 0.670; the combined power of discrimination (PD) and the power of exclusion (PE) were more than 0.9995 and 0.952 respectively.</p><p><b>CONCLUSION</b>The three loci in this study are found to have high heterozygosity and polymorphic information content, so they can provide useful markers for genetic purposes. These results could serve as valuable data to enrich the Korean ethnic group genetic database and play an important role in Chinese population genetic application.</p>