Tgq24^DBA/2J
QTL Variant Detail

Summary

• QTL variant: Tgq24^DBA/2J
• Name: triglyceride QTL 24; DBA/2J
• MGI ID: MGI:3828450
• QTL: Tgq24 Location: Chr13:119602630-119602630 bp Genetic Position: Chr13, Syntenic

Variant origin

• Strain of Specimen: DBA/2J

Variant description

• Allele Type: QTL
• Mutation: Undefined
• Mutation details: This allele confers increased plasma triglyceride concentrations in males after 3 weeks of high fat diet compared to DBA/1J. (J:142770)

Expression

In Structures Affected by this Mutation:

1 anatomical structure(s)

Notes

Tgq24 is male-specific.

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

J:142770

Linkage analysis was performed using a backcross derived from closely related inbred strains DBA/1J and DBA/2J. The genetic composition of these 2 inbred strains differs by just 5.6% at the SNP level. A total of 294 mice from (DBA/1J x DBA/2J)F1 x DBA/1Jand (DBA/1J x DBA/2J)F1 x DBA/2J populations were screened for 6,949 polymorphic SNP markers. Backcross mice were placed on a high-fat diet at 8 weeks of age and phenotyped for plasma triglyceride and HDL concentrations at 8, 11 and 16 weeks of age. Parental strain DBA/2J displays significantly increased plasma triglyceride concentrations on a CHOW diet compared to parental strain DBA/1J. Male DBA/2J animals display significantly increased plasma triglyceride and HDL concentrations after an 8 week high fatdiet compared to DBA/1J males.

Tgq24 (triglyceride QTL 24) mapped to 58 cM on mouse Chromosome 13 with LOD=4.3 at rs3710370 (120.25 Mb) for linkage to plasma triglyceride concentrations in males after 3 weeks on a high fat diet. DBA/2J-derived alleles at Tgq24 confer increased triglyceride levels in males. This locus also displays suggestive linkage to triglycerides on a CHOW diet (LOD=3.7). [Table 2 and 3].

References

• Original: J:142770 Stylianou IM, et al., Differences in DBA/1J and DBA/2J reveal lipid QTL genes. J Lipid Res. 2008 Nov;49(11):2402-13
• All: 1 reference(s)