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The spotting gene is more commonly referred to as the bicolor gene by cat breeders. The dominant spotting gene produces some of the most colorful coats in the feline fancy.
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Tabbies, Smokes/Shaded & Silvers, Bicolors, Pointed cats and Chocolates... Genetically, these wonderful colors of cats are just red, black or tortoiseshell cats, until the addition of a single gene or two changes the color of the coat.
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The European cat registries of Fédération Internationale Féline (FIFe) and Independent (IDP) describe and register bicolor cats by 3 specific color patterns. This article includes descriptions and illustrations.
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Some of the most strikingly marked felines in the cat fancy are the bicolors, calicos and all those other colors of cats "with white" patches on their coat. These beautiful colors are the result of the spotting gene. Learn about its action, inheritance and effect on other genes.
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"Van" is a man-made definition for a specific "with white" coat pattern in bicolor & calico cats. Although we frequently use the word van to suggest that a cat is carrying two bicolor genes (is homozygous for the spotting gene), the definition of a van refers to the distribution and limitation of color on a mostly white cat.
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