Bw8^DU6
QTL Variant Detail

Summary

• QTL variant: Bw8^DU6
• Name: body weight QTL 8; DU6
• MGI ID: MGI:2156206
• QTL: Bw8 Location: unknown Genetic Position: Chr5, Syntenic

Variant origin

• Strain of Specimen: DU6

Variant description

• Allele Type: QTL
• Inheritance: Not Specified

Notes

Candidate Genes

J:91835

The correlation between gene expression and dietary interaction was examined in a population of (BALB/cStCrlfC3H/Nctr x VY/WffC3Hf/Nctr-A(vy)/a)F1 animals. A/a and A/A^vy animals were placed on a 70% (calorie restricted) or 100% (non-restricted) diet andliver mRNA levels were assessed for over 18,000 genes using DNA microarrays. Twenty-eight known genes showing statistically significant differential expression between the 70% and 100% calorie diets and A/a and A/A^vy genotypes mapped near known diabesity QTLs. These genes may be considered further for candidate genes.

On mouse Chromosome 5, Pdgfra (42 cM) showed differential expression between A/a and A/A^vy animals on the unrestricted diet. Diabesity QTLs Dbsty2 (45 cM), Bw8 (42 cM), and Bwob (44 cM) map near this candidate gene. Another candidate gene, Shrm (52 cM), showed differential expression between the restricted and unrestricted diets on the A/a background as well as between A/a and A/A^vy animals on the restricted diet. Diabesity QTL Igfbp3q1 (58 cM) maps near Shrm. Mdh2 (78 cM) shows differential expression between the restricted and unrestricted diets on a A/A^vy background. Diabesity QTL Bw13 (81 cM) maps near candidate gene Mhd2.

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

J:49578

F2-intercross pedigree analysis of progeny from crosses between a single male of the outbred mouse line DU6 (selected for high body weight) and a DUKs female (a randomly mated control line) was used to map quantitative trait loci (QTLs). A QTL linked with body weight, Bw8, was placed at 42cM on mouse Chromosome 5. A QTL associated with abdominal fat weight, Afw3, was placed at 61cM. A QTL associated with abdominal fat percent, Afpq3, was placed at 51cM. A QTL associated with liver weight, Lwq2, was placed at 71 cM.

References

• Original: J:49578 Brockmann GA, et al., Quantitative trait loci affecting body weight and fatness from a mouse line selected for extreme high growth. Genetics. 1998 Sep;150(1):369-81
• All: 1 reference(s)