![]() The gene responsible is known as cb, the lower case letters tell us that it is a recessive gene. The Burmese cat has a slight variation of the pointed gene, they still have points on the extremities, but the body is darker. Therefore both the mother and father must carry the cs gene for it to be passed on. The gene responsible for the Siamese coloration is known as cs and is recessive. This unusual coat pattern is caused by a gene modifier that prevents the expression of the coat color on warmer parts of the body. The pointed colour is also found in other cat breeds as well as mixed-breed cats. The Siamese is the most well known of the pointed breeds, with its characteristic dark points on a light background. The non-agouti cinnamon and fawn colors are seen most often in the Oriental and British Shorthair. Fawnįawn is dilute of cinnamon (above) and resembles the lilac coat color, but is lighter. The cinnamon coat is a warm-brown shade compared to the rich brown of the chocolate color and is produced by a second recessive allele (variation of a gene) of B (black) which causes an elongation of the pigment granule and is denoted by the symbol b l. ![]() The coat color is a pale grey with a rich pink tone. It is seen most frequently in purebred cats, especially the Burmese, Oriental and British shorthair. Lilac is dilute chocolate and bears the same relationship to brown as blue does to black. Since the B gene is dominant over the locus, cats heterozygous for it ( B/b or B/b l genotype), carry chocolate or cinnamon gene but it cannot be recognized based on phenotype. The chocolate (b) allele is dominant over the cinnamon (b l) allele. Two mutations of the B gene have been identified, b (brown or chocolate) and b l (light brown or cinnamon). Chocolate is frequently referred to as a rare color, but it is quite common in purebred cats, especially Orientals and British Shorthairs. The brown coat color ( b) is a variation of black ( B) coat color and is caused by a mutation that leads to reduced amounts of black pigment which causes them to appear brown and is recessive to black. You can view more beautiful pictures of brown cats in our article “ Why are brown cats rare?“. The British Blue, Russian Blue, Korat and Nebelung are the most well-known breeds with blue coats, but the color can also occur in mixed-breed cats. Black and red are dominant, and therefore only one copy of the gene is needed for the cat to show these colors.įirst, let’s look at relatively rare colors:īlue (grey) is dilute black, the color is chemically black (eumelanin), but melanin granules clump in the hair shaft resulting in colorless areas which allow more light to pass through the hair and lightening the color. Every other coat color is a deviation of those two colors.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |