Genetic analysis of susceptibility to diabetes mellitus in F2-hybrids between diabetes-prone BB and various MHC-recombinant congenic rat strains

Eberhard Günther, Ulrich Kiesel, Hubert Kolb, Michael Krawczak, Ellen Rothermel, Wolfgang Wurst

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

The occurrence of diabetes mellitus was analysed in F2 hybrids bred from diabetic BB male rats and females of congenic rat strains carrying different major histocompatibility (RT1) haplotypes on the common LEW strain genetic background. Permissiveness for the disease in BB rats is probably determined by class II genes of the RT1 complex, which are also present in normal rats. Class I and class III genes, notably the Hsp70 genes in the class III region, do not appear to be involved. Among the diabetic F2 hybrids, about 90% are shown by DNA analysis to be homozygous for the class II genes of the permissive RT1 haplotype. The segregation patterns are in accord with the action of two independent recessive genes, one of them being RT1-linked.

Original languageEnglish
Pages (from-to)543-551
Number of pages9
JournalJournal of Autoimmunity
Volume4
Issue number3
DOIs
StatePublished - Jun 1991
Externally publishedYes

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