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. 1978 Feb;19(2):416–420. doi: 10.1128/iai.19.2.416-420.1978

Genetic control of murine resistance to Toxoplasma gondii.

D M Williams, F C Grumet, J S Remington
PMCID: PMC414099  PMID: 631881

Abstract

The genetics of murine susceptibility to Toxoplasma gondii was investigated in inbred mice and their F1 and F2 offspring. Among four strains of congenic mice of the B10 background, those with H-2a/a and H-2b/b genotypes were more susceptible than were those with H-2d/d and H-2k/k genotypes. Breeding studies utilizing three of these strains demonstrated linkage between the H-2a allele and greater susceptibility. These data suggest the existence of an H-2-linked gene affecting susceptibility to T. gondii. In challenge of recombinant inbred mice derived from C57Bl/6J (high susceptibility) and BALB/c (low susceptibility) strains, lines BE, BJ, and BK were more susceptible than lines BD, BG, BH, and BI. These data are consistent with the existence of a second disease susceptibility gene linked to the H-13 locus. F1 offspring of the C57B1/6J X B10.D2 mice were significantly less susceptible than either parent. This phenotypic complementary suggests the presence of more than one genetic mechanism of resistance to T. gondii. From these combined data, we conclude that (i) susceptibility to T. gondii in mice is affected by at least two genes, (ii) one of the genes is linked to the H-2 and one to the H-13 locus, and (iii) more than a single mechanism of resistance must be considered to explain the observed genetic controls of susceptibility.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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