Mapping Data

Experiment

• Experiment
  TEXT-QTL
• Chromosome
  7
• Reference
  J:72021 Ivandic BT, et al., New Dyscalc loci for myocardial cell necrosis and calcification (dystrophic cardiac calcinosis) in mice. Physiol Genomics. 2001 Aug 28;6(3):137-44
• ID
  MGI:2152565

Genes

Gene	Assay Type
Abcc6	visible phenotype
D7Mit229
Dmwd	reported elsewhere
Dmpk	reported elsewhere
Slc8a2	reported elsewhere
Ckm	reported elsewhere
Calm1	reported elsewhere
Fosb	reported elsewhere
Tnni3	reported elsewhere
Hrc	reported elsewhere
Bax	reported elsewhere

Notes

• Experiment
  135 microsatellite markers were typed in 185 (C57BL/6J x C3H/HeJ)F2 female animals to identify loci associated with dystrophic cardiac calcinosis. Animals were placed on a high fat, high cholesterol diet at 3 months of age to induce the phenotype. Parental strain C57BL/6J is resistant to dystrophic cardiac calcinosis whereas C3H/HeJ is susceptible. A previously mapped locus on mouse Chromosome 7, Dyscalc1, mapped in this study with a LOD score of 14.8 at D7Mit229 (15 cM - 24.5 cM) and 3 novel loci were identified. Dyscalc2 mapped to mouse Chromosome 4 spanning 50 cM - 80 cM (LOD = 4.7 at D4Mit16), Dyscalc3 mapped to mouse Chromosome 12 from 1 cM - 10 cM (LOD = 3.5 at D12Mit37), and Dyscalc4 mapped to mouse Chromosome 14 from 10 cM - 30 cM (LOD = 3.7 at D14Mit133). Additive epistasis between Dyscalc1 and Dyscalc2 was detected. Several potential candidate genes map near Dyscalc1 and include Dmwd, Dm15, Ckmm, Slc8a2, Calm1, Fosb, Tnni3, Hrc, and Bax. Possible candidate genes for Dyscalc2 and Dyscalc4 are Bmp8a and Bmp4, respectively. No candidate genes for Dyscalc3 have been identified.