Genetic background (DDD/Sgn versus C57BL/6J) strongly influences postnatal growth of male mice carrying the A(y) allele at the agouti locus: identification of quantitative trait loci associated with diabetes and body weight loss.

Abstract excerpt

BACKGROUND: Mice carrying the A(y) allele at the agouti locus become obese and are heavier than their non-A(y) littermates. However, this does not hold true for the genetic background of the DDD mouse strain. At 22 weeks of age, DDD.Cg-A(y) females are heavier than DDD females, whereas DDD.Cg-A(y) males are lighter than DDD males. This study aimed to determine the possible cause and identify the genes responsible...

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