Piebald: Covered with patches of two colors, typically black and white.
Pigment: A substance, such as chlorophyll or melanin, that produces a characteristic color in plant or animal tissue.
The patching with white colour, caused by gene S, is called Piebald Spotting.
Piebald: Basic white pattern with areas of color.
Pinking up: Nipples turn pink if the cat is pregnant about three weeks after mating.
Piebald cats are colored black and white, often haphazardly and with fascinating results. ... Messy Beast: Beautiful Bicolours - Tuxedo and Magpie...
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Piebald: specifically black and white, but also applied to white spotting with other colors
Pigment: coloring matter
Pinking up: primarily a British term for the characteristic coloring of the queen's nipples about three weeks after a successful mating ...
The ~ spotting gene (partial leucism) appears in other different species (like the horse and the ball python). It also shows up in the common house cat, and other breeds of cat, since the van pattern is merely an extreme expression of the gene.:148 ...
Three elements make it challenging to breed Snowshoes: the white spotting factor (also called the ~ pattern), which is governed by a dominant gene; the pointed pattern, which is governed by a recessive gene; and the body and head type.
The coloration of the Turkish Van, which is considered by many to be the original breed to carry the ~ gene, calls for a white, semi-longhaired cat with colored markings restricted primarily to the head and tail.
Cats with a van pattern carry a ~ gene, which is the same gene that causes the white color on cats with tuxedo (black with a white belly) or bicolor (a color plus white) patterns. The gene is expressed to a greater degree in Van cats, which accounts for the large amount of white on the body.
The Turkish van carries the ~ gene which calls for a white, semi-longhaired cat with coloured markings restricted primarily to the head and tail. Turkish vans have a very unique cashmere-like texture to their coat that makes it water-resistant.
Van Pattern is also called Grade 8 - Grade 9 ~. It is the most extreme of the 'Seychelles' patterns, comprising patches on head at base of each ear; tail same colour as patches, often with darker rings because red and cream are not true solid colours.
A seperate gene for ~ patches which is not related to the sex of the cat creates the white areas to make a calico. The male calico cat actually has a rare condition called Klinefelter's syndrome, which alters the chromosomes.
The Turkish Van is considered by many to be the original breed to carry the ~ gene; because of this, other ~ cats are said to be “van-patterned' after the breed that originally sported it ...
This gene is not completely understood, yet geneticists believe it is recessive and unrelated to the more common dominant "~" or white spotted factor gene. Both parents must carry the recessive gloving gene to produce kittens with white gloves.
Black and white bicolor cats have also been known as ~, pied, parti-colored and even magpie cats, although these expressions are not much used nowadays. Jellicle cat is another term, made popular by T.S. Elliot, that is often applied to tuxedos.
The van is a large white semi longhaired cat with coloured markings on the head and tail. It is referred to a a ~ cat. The coat has a cashmere texture and does not have an undercoat.
These cats come in varying colors. Most common are black, white, blue, smoke, brown tabby, silver tabby, color point, red, and recently, ~s.
INCOMPLETE DOMINANCE - The condition in heterozygotes where the phenotype is intermediate between the two homozygotes. (L/L = short hair, l/l = longhair; L/l could produce medium long or medium short hair.) The ~ form of white spotting is an excellent example of incomplete dominance.
Snowshoes have been around for nearly 5 decades but are still quite rare due to the difficulty of reproducing the correct coat pattern. The marks on the coat are based on recessive genes for color points and on the co-dominant ~ pattern gene, ...
See also: What is the meaning of Coat, Blue, Breeder, Breeding, Turkish Van?