| Primary Identifier | MGI:2657305 | Allele Type | Spontaneous |
| Gene | a | Inheritance Mode | Other (see notes) |
| Strain of Origin | C57BL/6J | Is Recombinase | false |
| Is Wild Type | false |
| description | This allele is recessive to A and Aw on the dorsum and dominant to all agouti alleles on the ventrum except for Aw from which it is indistinguishable (J:78801) . |
| molecularNote | This spontaneous mutation arose at The Jackson Laboratory. |