HLA-DQB1, -DQA1, -DRB1 linkage disequilibrium and haplotype diversity in a Mestizo population from Guadalajara, Mexico

L. M. Cortes, L. M. Baltazar, F. J. Perea, M. P. Gallegos-Arreola, S. E. Flores, L. Sandoval, N. Olivares, M. G.O. Lorenz, H. Xu, S. A. Barton, R. Chakraborty, F. Rivas

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

HLA-DQB1, -DQA1, and -DRB1 genes were typed by polymerase chain reaction with sequence-specific primer (PCK-SSP) in 159 healthy volunteers from 32 families living in Guadalajara, Mexico. Three-locus genotype data from all family members were used to infer haplotypes in 54 unrelated individuals of the sample, from which estimate of segregating haplotype frequencies and linkage disequilibrium (LD) between loci were computed. Genotype distributions were concordant with Hardy-Weinberg expectations (HWE) for all three loci, and allele distributions were similar to the ones observed in other Latin-American populations. Of the 56 distinct three-site (DQB1-DQA1-DRB1) haplotypes observed in the sample, the five most common (i.e., with frequencies of five counts or more) were: *0302-*0301-*04, *0201-*0201- *07, *0301-*0501-*14, *0402-*0401-*08, and *0501-*0101-*01. These common three-locus haplotypes also contributed to the majority of the significant two-locus linkage disequilibria of these three sites.

Original languageEnglish (US)
Pages (from-to)458-465
Number of pages8
JournalTissue Antigens
Volume63
Issue number5
DOIs
Publication statusPublished - May 1 2004
Externally publishedYes

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Keywords

  • HLA class II
  • HLA-DQA1
  • HLA-DQB1
  • HLA-DRB1
  • Haplotype
  • Linkage disequilibrium
  • Mexico

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology
  • Biochemistry
  • Genetics

Cite this

Cortes, L. M., Baltazar, L. M., Perea, F. J., Gallegos-Arreola, M. P., Flores, S. E., Sandoval, L., ... Rivas, F. (2004). HLA-DQB1, -DQA1, -DRB1 linkage disequilibrium and haplotype diversity in a Mestizo population from Guadalajara, Mexico. Tissue Antigens, 63(5), 458-465. https://doi.org/10.1111/j.0001-2815.2004.00202.x