Summary |
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Variant origin |
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Variant description |
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Phenotypes |
View phenotypes and curated references for all genotypes (concatenated display).
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Notes |
Mapping and Phenotype information for this QTL, its variants and associated markersJ:102748Loci modifying the dilated cardiomyopathy phenotype of nmd (neuromuscular degeneration) mutant mice were mapped in a population of (B6.CAST-MnmC Ighmbp2nmd-2J x CAST/EiJ)F1 x B6.CAST-MnmC Ighmbp2nmd-2J backcross animals. Genome scan was performedusing 134 polymorphic markers spaced 10 cM - 20 cM intervals apart. Prolonged lifespan was used to measure protection against dilated cardiomyopathy. Cmn1 (cardiac modifier of nmd 1) mapped to 70 cM on mouse Chromosome 9 near D9Mit17 (LOD=5.56). The 95%confidence interval of Cmn1 spans 60 cM - 70 cM. This locus explains 8.2% of the variance. CAST/EiJ-derived alleles at Cmn1 confer resistance to development of dilated cardiomyopathy associated with the Ighmbp2nmd-2J mutation. Cmn2 mapped to 44 cM onmouse Chromosome 10 near D10Mit42 (LOD=7.95). The 95% confidence interval of Cmn2 spans 28 cM - 44 cM. This locus explains 12.1% of the variance. CAST/EiJ-derived alleles at Cmn2 confer resistance to development of dilated cardiomyopathy associated with the Ighmbp2nmd-2J mutation. Cmn3 mapped to 44 cM on mouse Chromosome 16 near D16Mit64 (LOD=4.28). The 95% confidence interval of Cmn3 spans 42 cM - 48 cM. This locus explains 6.2% of the variance. In male animals, CAST/EiJ-derived alleles at Cmn3 confer resistance to development of dilated cardiomyopathy associated with the Ighmbp2nmd-2J mutation, whereas in females the C57BL/6J-derived allele confers resistance.Two suggestive loci with C57BL/6J-derived alleles conferring resistance to dilated cardiomyopathy mapped to mouse Chromosomes 1 (LOD=3) and 5 (LOD=3.3). |
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References |
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Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO) |
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last database update 10/29/2024 MGI 6.24 |
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