[Analysis of the genetic polymorphism of 17 Y-chromosomal short tandem repeat loci in the Han population in Chengdu].
OBJECTIVE
To obtain the population genetic data of 17 Y-chromosomal short tandem repeat (Y-STR) in the Han population in Chengdu of Sichuan Province.


METHODS
The 17 Y-STR loci were amplified from the blood samples of 111 unrelated Chengdu Han individuals using the AmpFlSTR Yfiler system. The PCR products were genotyped with an ABI 3130 genetic analyzer.


RESULTS
In the loci of in DYS456, DYS389I, DYS390, DYS389II, DYS458, DYS19, DYS385a/b, DYS393, DYS391, DYS439, DYS635, DYS392, Y-GATA-H4, DYS437, DYS438, and DYS448, 3 to 8 alleles were detected in the Han population in Chengdu, and 36 alleles were detected in the locus DYS385a/b, with the minimal gene diversity (GD) value of 0.3970 (DYS391) and maximal value of 0.9561 (DYS385a/b). The DNA samples of 16 women and 7 different species of animals were amplified, but no specific products were found for the 17 Y-STR loci. No mutations of the 17 Y-STR alleles were observed in 20 father-son pairs as confirmed by autosomal STR analysis.


CONCLUSIONS
The 17 Y-STR loci are highly polymorphic and are suitable for personal identification, paternity testing, population genetics and anthropology studies.
Song
Xing-bo
XB
Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, China. songxingbo@gmail.com
Fan
Hong
H
Ying
Bin-wu
BW
Lu
Xiao-jun
XJ
Wang
Jun
J
Ye
Yuan-xin
YX
D002681:China / Q000208:ethnology; D041322:Chromosomes, Human, Y / Q000235:genetics*; D056426:Genetic Loci / Q000235:genetics*; D006801:Humans; D008297:Male; D018895:Microsatellite Repeats / Q000235:genetics*; D011110:Polymorphism, Genetic / Q000235:genetics*