Faculty Research 1990 - 1999

Title

Multifactorial inheritance of neural tube defects: localization of the major gene and recognition of modifiers in ct mutant mice.

Document Type

Article

Publication Date

1994

Keywords

Animal, Base-Sequence, Chromosome-Mapping, Crosses-Genetic, Disease-Models-Animal, Endoderm: pa, Epistasis-Genetic, Genes-Structural, Lod-Score, Mice, Mice-Inbred-BALB-C, Mice-Inbred-C57BL, Mice-Inbred-DBA, Mice-Inbred-Strains: em, ge, Mice-Mutant-Strains: em, ge, Molecular-Sequence-Data, Muridae: ge, Neural-Tube-Defects: ge, Spinal-Dysraphism: em, ge, pp, pa, Stress-Mechanical, SUPPORT-NON-U-S-GOVT, SUPPORT-U-S-GOVT-P-H-S, Tail: ab, em

JAX Source

Nat Genet 1994 Apr;6(4):357-62

Grant

HD28882/HD/NICHD, CA28735/CA/NCI, HD06763/HD/NICHD

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.