title: [Genetic polymorphism of six short tandem repeat loci in the Han population in Hebei province of China].
abstract: OBJECTIVE
  This article reports a population genetic study on six short tandem repeat(STR) loci, D7S820, D19S253, D12S391, D5S818, D16S539 and D8S1179, in a sample of unrelated Chinese Han individuals(n=122-173) living in Hebei province.
  
  
  METHODS
  DNA extraction from blood samples (200 in number) and multiplex amplification of the above six loci were carried out. Using denaturing polyacrylamide gel electrophoresis and silver stain, the authors investigated the distribution of allele frequencies of the six loci in Han population in Hebei province.
  
  
  RESULTS
  The STR polymorphisms at all of the six loci were observed in Chinese Han population in Hebei province. The observed heterozygosities of D7S820, D19S253, D12S391, D5S818, D16S539 and D8S1179 were 0.828, 0.757, 0.769, 0.837, 0.785 and 0.852, respectively. The measured values of the power of discrimination (PD) were 0.914, 0.919, 0.940, 0.909, 0.917, 0.944; of the mean exclusion chance(MEC) 0.618, 0.740, 0.801, 0.557, 0.655, 0.696 and of the polymorphism information content (PIC) in Chinese 0.771, 0.760, 0.762, 0.708, 0.776 and 0.794, respectively.
  
  
  CONCLUSIONS
  The genotype distributions of the six STR were in accordance with Hardy-Weinberg equilibrium. The numerical values of the PD and MEC are relatively high in Hebei province, and thus can be of significant application in population genetics and forensic medicine.
authors.affiliation: Maternal and Child Health Hospital of Shijiazhuang, Shijiazhuang, Hebei, 050051 PR China.
authors.forename: Ping
authors.initials: P
authors.lastname: Lu
authors.forename: Qing-guo
authors.initials: QG
authors.lastname: Zhao
authors.forename: Yu-lai
authors.initials: YL
authors.lastname: Liu
authors.forename: Yu-lu
authors.initials: YL
authors.lastname: Yu
authors.forename: Ai-ping
authors.initials: AP
authors.lastname: Zhu
authors.forename: Qing
authors.initials: Q
authors.lastname: Li
authors.forename: Shu-lan
authors.initials: SL
authors.lastname: Di
authors.forename: Ji-zhen
authors.initials: JZ
authors.lastname: Feng
authors.forename: Jun-ge
authors.initials: JG
authors.lastname: Zhang
authors.forename: Chong-jie
authors.initials: CJ
authors.lastname: Li
mesh_terms: D044466:Asian People / Q000235:genetics; D002681:China / Q000208:ethnology; D004247:DNA / Q000032:analysis; D005260:Female; D005787:Gene Frequency; D005828:Genetics, Population; D006801:Humans; D008297:Male; D018895:Microsatellite Repeats / Q000235:genetics*; D011110:Polymorphism, Genetic; D044382:Population Groups; D020080:Tandem Repeat Sequences / Q000235:genetics / Q000502:physiology
chemical_list: D004247:DNA