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Brown coat color phenotypes caused by mutations in tyrosinase-related protein-1 (TYRP1) are recognized in many mammals. Brown variations are also recognized in the domestic cat, but the causative mutations are unknown. In cats, Brown, B, has a suggested allelic series, B > b > b1. The B allele is normal wild-type black coloration.
Trait (Associated with Phenotype)
It is a trait and so is tested based on preference, not usually for health concerns.
Mode of Inheritance:
Mamm Genome. 2005 May;16(5):356-66.
Associated Breed(s):Abyssinian, African Short Hair, American Bobtail , American Curl, American Ringtail, American Shorthair, Angora, Asian, Australian Mist , Balinese, Bengal, Birman, Bombay, British Black Tipped, British Longhair, British Red Spot, British Shorthair, Burmese, Burmilla, Calico, California Spangled, Chantilly, Chartreux, Chausie, Chinchilla, Colourpoint Siberian Forest Cat, Cornish Rex, Devon Rex, Domestic Leopard Cat, Domestic Medium / Long Hair, Domestic Short Hair, Don Hairless, Don Sphynx, Egyptian Black, Egyptian Mau, Exotic , Exotic Longhair, Exotic Shorthair, Foreign White, German Rex, Havana Brown, Highland Fold, Himalayan, Japanese Bobtail, Javanese, Khao Manee, Korat, Kurilian Bobtail Short Haired, LaPerm , Maine Coon, Manx , Munchkin Short/Long Haired, Norwegian Forest Cat, Ocicat, Ojos Azules, Oriental , Oriental Long Hair, Oriental Short Hair, Persian , Persian Blue, Persian Colourpoint, Persian Smoke, Persian Tabby, Peterbald, PixieBob, Ragamuffin, Ragdoll, Rex , Russian Black, Russian Blue, Russian White, Savannah, Scottish Fold, Scottish Fold Long Haired, Scottish Fold Short Haired, Scottish Wildcat, Selkirk Rex, Serengeti, Seychellois Short/Long Hair, Siamese, Siberian, Siberian Forest Cat, Singapura, Snowshoe, Sokoke, Somali , Somali Long Hair, Somali Short Hair, Sphynx, Tiffany, Tonkinese, Toyger, Turkish Angora, Turkish Van, York Chocolate,