title: [Polymorphism and multiplex amplification of 3 X-chromosome specific short tandem repeat loci].
abstract: OBJECTIVE
  To devise a multiplex PCR system of three X-chromosome specific short tandem repeat (X-STR) loci and study the genetic polymorphism.
  
  
  METHODS
  DXS6799, DXS6804 and DXS6854 were amplified simultaneously using a multiplex system and were typed by polyacrylamide gel electrophoresis and silver staining.
  
  
  RESULTS
  A total of 262 male and 255 female individuals from Guangdong Han population were tested; each locus showed 7 alleles. 73 haplotypes were detected in the male individuals. The haplotype diversity reached 0.9674.
  
  
  CONCLUSIONS
  The 3 X-STR multiplex system is relatively abundant in polymorphic information for forensic identification and paternity testing.
authors.affiliation: Faculty of Forensic Medicine, Zhongshan Medical College, Sun Yat-sen University, Guangzhou, Guangdong, 510089 PR China. qiulinguser@tom.com
authors.forename: Qiu-ling
authors.initials: QL
authors.lastname: Liu
authors.forename: De-jian
authors.initials: DJ
authors.lastname: Lü
authors.forename: Wei
authors.initials: W
authors.lastname: Cui
mesh_terms: D002874:Chromosome Mapping; D041321:Chromosomes, Human, X; D005260:Female; D005784:Gene Amplification; D006239:Haplotypes; D006801:Humans; D008297:Male; D010334:Paternity; D011110:Polymorphism, Genetic; D020080:Tandem Repeat Sequences