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Phenotypes Associated with This Genotype
Genotype
MGI:3778284
Allelic
Composition		 Avy/a
Genetic
Background		 involves: C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
a mutation (166 available); any a mutation (468 available)
Avy mutation (4 available); any a mutation (468 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
pigmentation

integument

cellular
abnormal epigenetic regulation of gene expression ( J:82396 )
• this allele is heavily methylated in the sperm of agouti colored males but hypomethylated in the sperm of yellow males

Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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Funding Information
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Send questions and comments to User Support. 		last database update
01/06/2026
MGI 6.24 		The Jackson Laboratory