Lbm2^SJL/J
QTL Variant Detail

Summary

• QTL variant: Lbm2^SJL/J
• Name: lean body mass 2; SJL/J
• MGI ID: MGI:2656824
• QTL: Lbm2 Location: unknown Genetic Position: Chr2, cM position of peak correlated region/allele: 55.14 cM
• QTL Note: genome coordinates based on the marker associated with the peak LOD score

Variant origin

• Strain of Specimen: SJL/J

Variant description

• Allele Type: QTL
• Mutation: Undefined
• This allele confers decreased lean body mass compared to MRL/MpJ.
• Inheritance: Recessive

Notes

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

J:81606

Genome scan was performed on 633 (MRL/MpJ x SJL/J)F2 animals to identify QTLs associated with lean body mass and body length. Parental strain MRL/MpJ exhibits a higher amount of lean body mass compared to parental strain SJL/J. Several lean body mass (Lbm) and body length (Lgth) QTLs were mapped. MRL/MpJ-derived alleles confer increased lean body mass at all Lbm loci. Lbm1, Lbm2, Lgth1, and Lgth2 map to mouse Chromosome 2 at 26.3 cM (LOD=3.6) , 50.3 cM (LOD=9.0), 50.3 cM (LOD=10.8), and 72.1 cM (LOD=9.7), respectively. (Lbm2 and Lgth1 overlap.) Lbm1 is inherited additively while Lbm2 is inherited dominantly. Lgth3 maps to 30.6 cM on mouse Chromosome 4 with LOD=2.7 at D4Mit178. Lbm3 and Lbm4 map to mouse Chromosome 6 at 17.5 cM (LOD=4.7) and 49.2 cM (LOD=4.7), respectively. Lbm3 exhibits a dominant mode of inheritance and Lbm4 exhibits an additive mode of inheritance. Lbm5 maps to 8 cM on mouse Chromosome 7 with LOD=2.9 at D7Mit22 and exhibits an additive mode of inheritance. Lbm6 and Lgth4 both map to 7.7 cM (LOD=7.5 and LOD=4.7, respectively), and Lbm7 and Lgth5 both map to 31.7 cM (LOD=4.7 and LOD=2.3, respectively) on mouse Chromosome 9. Lbm6 and Lbm7 exhibit dominant inheritance. Lgth6 maps to 43.7 cM on mouse Chromosome 11 with LOD=4.8 at D11Mit36. Lbm8and Lgth8 both map to 23 cM (LOD=4.2 and LOD=2.3, respectively), and Lbm9 and Lgth7 both map to 2.2 cM (LOD=3.9 and LOD=2.7, respectively) on mouse Chromosome 13. Lbm8 and Lbm9 exhibit additive inheritance. Lbm10 maps to 40.4 cM on mouse Chromosome 14with LOD=4.7 at D14Mit32 and exhibits additive inheritance.

References

• Original: J:81606 Masinde GL, et al., Quantitative trait loci (QTL) for lean body mass and body length in MRL/MPJ and SJL/J F(2) mice. Funct Integr Genomics. 2002 Aug;2(3):98-104
• All: 1 reference(s)