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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, British Shorthair/Longhair, 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,