Genetic Composition of Teochew Population in Chaozhou Revealed by 19 STR Loci: Population Polymorphism and Interpopulation Comparisons.

Aim: To investigate the genetic polymorphisms of 19 STR loci in the Teochew population of Chaozhou. Subjects and methods: Nineteen STR loci of 631 unrelated Teochew people in Chaozhou were detected by using the AGCU Expressmarker 20 kit. Results: The allele frequency ranged from 0.0008-0.5577. The combined power of discrimination and combined probability of excluding paternity is over 0.999,999,999,999,999,999,999,999,999,999 and 0.999,999,992,549,546, respectively. The principal component analysis based on the 11 shared STR loci showed the Teochew population was most genetically related to the Fujian Han population. Conclusion: The results demonstrate the set of 19 autosomal STRs could provide robust genetics information for individual identification, paternity testing and human genetics research in the Teochew population.