Quantitative trait loci for resistance to Heligmosomoides bakeri and associated immunological and pathological traits in mice: comparison of loci on chromosomes 5, 8 and 11 in F2 and F6/7 inter-cross lines of mice

J M Behnke, D M Menge, S Nagda, H Noyes, F A Iraqi, S J Kemp, R J M Mugambi, R L Baker, D Wakelin, J P Gibson

Research output: Contribution to journalArticlepeer-review

Abstract

A comparison of F2 and F6/7 inter-cross lines of mice, derived from CBA and SWR parental strains, has provided strong evidence for several previously undetected quantitative trait loci (QTL) for resistance to Heligmosomoides bakeri. Five QTL affecting average faecal egg counts and/or worm burdens in week 6 were detected on mouse chromosomes 5 (Hbnr9 and Hbnr10), 8 (Hbnr11) and 11 (Hbnr13 and Hbnr14). Three QTL for faecal egg counts in weeks 4 and 6 were found on both chromosomes 5 (Hbnr9) and 11 (Hbnr13 and Hbnr14). Two QTL for the mucosal mast cell protease 1 (MCPT1) response were located on chromosomes 8 (Hbnr11) and 11 (Hbnr13), two for the IgG1 antibody response to adult worms on chromosomes 5 (Hbnr10) and 8 (Hbnr11), two for PCV in week 6 on chromosomes 5 (Hbnr9) and 11 (Hbnr13), and two for the granulomatous response on chromosome 8 (Hbnr12) and 11 (Hbnr15). Our data emphasize that the control of resistance to H. bakeri is multigenic, and regulated by genes within QTL regions that have a complex range of hierarchical relationships.

Original languageEnglish
Pages (from-to)311-20
Number of pages10
JournalParasitology
Volume137
Issue number2
DOIs
Publication statusPublished - Feb 2010

Keywords

  • Animals
  • Chromosome Mapping
  • Chromosomes, Mammalian
  • Crosses, Genetic
  • Feces
  • Immunity, Innate
  • Mice
  • Parasite Egg Count
  • Quantitative Trait Loci
  • Strongylida
  • Strongylida Infections

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