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  • Title: Multifactorial inheritance of neural tube defects: localization of the major gene and recognition of modifiers in ct mutant mice.
    Author: Neumann PE, Frankel WN, Letts VA, Coffin JM, Copp AJ, Bernfield M.
    Journal: Nat Genet; 1994 Apr; 6(4):357-62. PubMed ID: 8054974.
    Abstract:
    Neural tube defects (NTD) in humans have been considered to have a multifactorial aetiology, however the participating genes have not been identified. The curly-tail (ct) mutant mouse develops NTD that resemble the human malformations in location, pathology and associated abnormalities. Moreover, there appears to be multifactorial influence on the incidence of NTD in offspring of curly-tail mice. We now describe a linkage analysis that localizes the ct gene to distal chromosome 4 in mice. Further analysis using recombinant inbred strains demonstrates the presence of at least three modifier loci that influence the incidence of NTD. This study provides definitive evidence for multifactorial inheritance in a mouse model of human NTD.
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