Population genetics for Y-chromosomal STRs haplotypes of Chinese Tujia ethnic group.

Allele and haplotype frequencies of 11 Y-chromosomal short tandem repeats (STRs) included in the PowerPlex Y Systems (Promega) were determined in a sample of 215 unrelated healthy male individuals of Chinese Tujia ethnic group living in Chongqing (Southwest of China). The gene diversity values of the Y-STRs loci ranged from 0.3757(DYS391) to 0.9170 (DYS385a/b). A total of 195 haplotypes were identified in the Y-STR loci, among which 180 were unique, 11 were found in two individuals, 3 were shared in three individuals and 1 was shared in four individuals. The observed haplotype diversity value and discrimination capacity were 0.9942 and 0.9070, respectively.