[A population study of three Y-STR loci by multiplexing in Han population in Chengdu, China].

OBJECTIVE To establish a better method determining three Y-STR loci. METHODS A multiplex of Y-STRs and amplify simultaneously three Y-STRs loci. RESULTS Establish successfully a multiplexing system of three Y-STR loci (DYS390, DYS391 and DYS393) followed by a population genetic study of Han population in Chengdu, China. CONCLUSION The diversity of haplotype is 0.8965, the value of discrimination and the chance of exclusion chance is 0.8965 with the standard error 0.0081. This established system is one of the good tools in personnel identification and genetic study.