The characteristics of polymorphism and gene structure of DYF155S1 locus in Y-specific minisatellite from Chinese Uygur population

Yan Mei Huang, Lei Yu, Da Yue Tong, Gui Qing Cai, Xin Yao Wu

Research output: Contribution to journalArticlepeer-review

Abstract

The study is to reveal the diversity and gene structure of 5' and 3' end of DYF155S1 locus in Y-chromosome minisatellite among Chinese Uygur population. Fluorescent MVR-PCR(minisatellite variant repeat by PCR), Amp-FLP(Amplified fragment length polymorphism) and DNA sequencing methods were used respectively to detect 106 unrelated males among Chinese Uygur population. The polymorphisms of DYF155S1 locus could be revealed in three aspects: (1) polymorphic length: the sizes of amplified fragments ranged from 1405 to 2505 bp. There are 37 types found among the 106 unrelated males. (2) polymorphism at 5' end of DYF155S1 locus, 68 types found among the 106 unrelated males. (3) polymorphism at 3' end of DYF155S1 locus, 23 types found among the 106 unrelated males. In combination of these three aspects of polymorphism, none of the 106 unrelated males tested had the same allele, and the gene diversity (h) was over 0.9999. Seven and two types of modular structure were founded in the 5' and 3' end of DYF155S1 locus, respectively, by DNA sequencing. The alleles at DYF155S2 locus showed yes/no dimorphism and the rate of deletion was 4.7%. The polymorphisms of DYF155S1 locus were fully revealed by using combination of MVR-PCR, Amp-FLP and DNA sequencing methods, and we suggested the nomenclature for alleles of MVR loci. These methods are useful tools and provide basic data for the study of human genetics and forensic medicine.

Original languageEnglish
Pages (from-to)23-30
Number of pages8
JournalYi chuan = Hereditas / Zhongguo yi chuan xue hui bian ji
Volume26
Issue number1
StatePublished - Jan 2004
Externally publishedYes

Fingerprint

Dive into the research topics of 'The characteristics of polymorphism and gene structure of DYF155S1 locus in Y-specific minisatellite from Chinese Uygur population'. Together they form a unique fingerprint.

Cite this