Genetic polymorphisms of 17 Y-chromosome STRs in Han population from Henan province of China

Haplotypes and allele frequencies of 17 Y-short tandem repeats (STRs) included in the PowerPlex1 Y systems kit (DYS19, DYS389 I, DYS389 II, DYS390,DYS391, DYS392, DYS393, DYS385, DYS438, DYS439, DYS437, DYS448, DYS456, DYS458, DYS635 and Y GATA H4) were examined in a  population sample of 276 unrelated Han male living in Henan province. A total of 272 haplotypes were observed in the 276 individuals studied, of which 268 were unique and four were found in two individuals. The gene diversity values ranged from 0.5019 (DYS391) to 0.9579 (DYS385a, b). The overall haplotype diversity for the 17 Y-STR loci was 0.9998. Key words: Y-chromosomal short tandem repeats (STRs), haplotype, genetic polymorphisms, Chinese Han population