GeneSet Information

Tier II GS129157 • modifier of hg 1 (Mohg1 Published QTL Chr 2)


QTL associated with modifier of hg 1. The confidence interval is Chr2:76686471-103105635 bp,+strand


QTL-Mohg1-Mouse-Chr 2









Farber CR, Corva PM, Medrano JF


Genome-wide isolation of growth and obesity QTL using mouse speed congenic strains.


BMC genomics May 2006, Vol 7, pp. 102


High growth (hg) modifier and background independent quantitative trait loci (QTL) affecting growth, adiposity and carcass composition were previously identified on mouse chromosomes (MMU) 1, 2, 5, 8, 9, 11 and 17. To confirm and further characterize each QTL, two panels of speed congenic strains were developed by introgressing CAST/EiJ (CAST) QTL alleles onto either mutant C57Bl/6J-hg/hg (HG) or wild type C57Bl/6J (B6) genetic backgrounds.The first speed congenic panel was developed by introgressing four overlapping donor regions spanning MMU2 in its entirety onto both HG and B6 backgrounds, for a total of eight strains. Phenotypic characterization of the MMU2 panel confirmed the segregation of multiple growth and obesity QTL and strongly suggested that a subset of these loci modify the effects of the hg deletion. The second panel consisted of individual donor regions on an HG background for each QTL on MMU1, 5, 8, 9, 11 and 17. Of the six developed strains, five were successfully characterized and displayed significant differences in growth and/or obesity as compared to controls. All five displayed phenotypes similar to those originally attributed to each QTL, however, novel phenotypes were unmasked in several of the strains including sex-specific effects.The speed congenic strains developed herein constitute an invaluable genomic resource and provide the foundation to identify the specific nature of genetic variation influencing growth and obesity. PUBMED: 16670015
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Annotation Information

Genetic Variation (D014644)
Alleles (D000483)
Tissue Donors (D014019)
Chromosomes (D002875)
Prejudice (D011287)
Quantitative Trait Loci (D040641)
Adiposity (D050154)
Foundations (D005582)
Obesity (D009765)
Confidence Intervals (D016001)
no abnormal phenotype detected (MP:0002169)

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