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Cmn3CAST/Ei
QTL Variant Detail
Summary
QTL variant: Cmn3CAST/Ei
Name: cardiac modifier of nmd 3; CAST/Ei
MGI ID: MGI:3612510
Synonyms: Cmn3CAST/EiJ
QTL: Cmn3  Location: unknown  Genetic Position: Chr16, cM position of peak correlated region/allele: 34.22 cM
QTL Note: genome coordinates based on the marker associated with the peak LOD score
Variant
origin
Strain of Specimen:  CAST/Ei
Variant
description
Allele Type:    QTL
Mutation:    Undefined
    This allele confers resistance to dilated cardiomyopathy in males animals compared to C57BL/6J. (J:102748)
Phenotypes
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View phenotypes and curated references for all genotypes (concatenated display).
Notes

Mapping and Phenotype information for this QTL, its variants and associated markers

J:102748

Loci 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).

References
Original:  J:102748 Maddatu TP, et al., Dilated cardiomyopathy in the nmd mouse: transgenic rescue and QTLs that improve cardiac function and survival. Hum Mol Genet. 2005 Nov 1;14(21):3179-89
All:  1 reference(s)

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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
11/12/2024
MGI 6.24
The Jackson Laboratory