Genetic polymorphisms in 16 X-STR loci analyzed in the She population from Zhejiang Province, China

Allele frequencies for 16 X-chromosomal STR (X-STR) loci (DXS6795, DXS9902, DXS8378, HPRTB, GATA165B12, DXS7132, DXS7424, DXS6807, DXS6803, GATA172D05, DXS6800, DXS10134, GATA31E08, DXS6810, DXS6789, and DXS10159) were obtained from a sample set of 296 unrelated individuals from the Zhejiang She population in China. We observed a total of 117 alleles in the group, with allele frequencies ranging from 0.0022 to 0.8143. The most informative marker for the studied population was DXS10134, with a polymorphism information content (PIC) of 0.8547, and the least polymorphic locus was DXS6800 (PIC = 0.3071). The power of discrimination (PD) varied from 0.3244 (DXS6800) to 0.8680 (DXS10134) in males and from 0.5263 (DXS6800) to 0.9693 (DXS10134) in females. The combined PD_M and PD_F was 0.999999996987156 and 0.999999999999993, respectively. The combined MEC_D and MEC_T was 0.999993100252466 and 0.999999973583357, respectively. In the population comparisons, a close relationship between the Zhejiang She and Eastern Han populations was observed. In general, the present findings indicate that the 16 X-STR loci examined are highly genetically polymorphic in the She population of Zhejiang, providing useful information on She for forensic science and population genetic studies.