Color Modification
Chocolate (bh)
Alternative Names: Brown, Liver, Red, Copper
Chocolate color discovered in the Siberian Husky, also known as "bh," is a variant found in the TYRP1 gene, known as the B locus. This variant is associated with a dog’s darkest color pigment being limited to brown instead of black. Meaning all dark hair, nails and skin (including eye rims, nose and paw pads) will be a shade of brown or chocolate. Eye color is also affected, and is typically gold or amber.
Breeds
Chocolate (bh) is common in:
Siberian Husky
More Info
Did you know?
Chocolate coloration is traditionally termed "red" in Siberian Huskies. This color can come in a variety of shades ranging from dark brown to rusty brownish red to coppery red (orange) to light strawberry blonde.
How it works
To show chocolate coloration a dog must inherit two chocolate variants, one from each parent. This can either be two copies of a particular variant, such as this one (“bh”), or two of any combination of chocolate variants.
Prevalence
1 in 1,800 dogs
has one or more copy of this genetic variant in our testing.
Technical Details
| Gene | TYRP1 |
|---|---|
| Also Called | Brown (B) Locus |
| Variant | G>A |
| Chromosome | 11 |
| Coordinate | 33,317,814 |
All coordinates reference CanFam3.1
References & Credit
Credit to our scientific colleagues:
Van Buren, S.L., Michelson, J.R., Minor, K.M. (2021). A novel TYRP1 mutation associated with brown coat color in Siberian huskies. Anim Genet 52(2), 245-246. View the article