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The white spotting gene (S) creates white markings on a solid or patterned cat. The white spotting gene is variable in expression from white locket (face/ paws/legs/white stomach) through to solid white covering 40-60 % of the body to high grade spotting (van pattern) where most of the body is white, other than the head and tail that can resemble dominantno white, however it is rarely associated with deafness. Homozygosity vs heterozygosity for the ws allele appears to have an influence on the degree of white pigmentation. Dominant white (W) masks other colour and pattern alleles hence solid white cats may genetically be solid or patterned cats in any colour. The underlying colour will show up in any offspring that don’t inherit the Dominant white allele.
Trait (Associated with Phenotype)
insertion over 20bp
It is a trait and so is tested based on preference, not usually for health concerns.
Mode of Inheritance:
Frischknecht, M., Jagannathan, V., Leeb, T. : Whole genome sequencing confirms KIT insertions in a white cat. Anim Genet 46:98, 2015. Pubmed reference: 25515300. DOI: 10.1111/age.12246.
Associated Breed(s):Abyssinian, African Short Hair, All Breeds (Feline), American Bobtail , American Curl, American Ringtail, American Shorthair, Angora, Asian, Australian Mist , Balinese, Bambino, Bengal, Birman, Bombay, British Black Tipped, British Longhair, British Red Spot, British Shorthair, Burmese, Burmilla, Calico, California Spangled, Chantilly, Chartreux, Chausie, Chinchilla, Colourpoint Shorthair, 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, Elf Cat, European, 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 , Lykoi, Maine Coon, Mandalay, Manx , Minuet, Mixed Breed / Unknown Breed (Feline), Munchkin Short/Long Haired, Neva Masquerade, 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 Short Hair, Scottish Straight, 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, Toybob, Toyger, Turkish Angora, Turkish Van, York Chocolate,