 A tortoiseshell (technically tortoiseshell-and-white) cat. Example of tortoiseshell and white facial markings. The variations in skin tone are clearly visible on the nose. Tortoiseshell and calico describe a coloring found in cats and caused by a combination of specific genetic traits. In female cats, where this trait occurs almost exclusively, it is a result of X-inactivation, in which different patches of fur receive coding for different hair color due to the activation of an X chromosome from either the mother or the father. Calico coloring is a mix of phaeomelanin based colors (red) and eumelanin based colors (black, chocolate and cinnamon). Cats of this coloration are believed to bring good luck in the folklore of many cultures;[1] in the United States these are sometimes referred to as money cats.[2] Image File history File links No higher resolution available. ...
Image File history File links No higher resolution available. ...
Binomial name Felis catus Linnaeus, 1758 Synonyms Felis lybica invalid junior synonym The cat (or domestic cat, house cat) is a small carnivorous mammal. ...
In those species in which sex is determined by the presence of the Y or W chromosome rather than the diploidy of the X or Z, a Barr body is the inactive X chromosome in a female cell, or the inactive Z in a male. ...
Melanin is a polymer of either or both of two monomer molecules: indolequinone, and dihydroxyindole carboxylic acid. ...
Melanin is a polymer of either or both of two monomer molecules: indolequinone, and dihydroxyindole carboxylic acid. ...
Good Luck!! is a 2003 Japanese television drama produced by TBS. Starring Takuya Kimura and KÅ Shibasaki, Good Luck!! topped the Japanese drama ratings with a whopping 35% viewership in 2003. ...
Patterns The mix of colors results in a cat with patches of red and black, chocolate, or cinnamon. The size of the patches can vary from a fine speckled pattern to large areas of colour. Typically, the more white a cat has, the more solid the patches of color. Dilution genes may modify the coloring, lightening the fur to a mix of cream and blue, lilac or fawn. The markings on tortoiseshell cats are usually asymmetrical. Occasionally tabby patterns of eumelanistic and pheomelanistic colours are also seen (these are often then called "torbie" or "caliby").[3] Tortoiseshell also can be expressed in the point pattern. The description "tortoiseshell" (also called "calimanco" or "clouded tiger" in North America) is typically reserved for cats with brindled coats that have relatively little or no white markings, while those that are largely white with red and black patches (rather than a brindled aspect) are described as tortoiseshell-and-white (in the UK) or calico (in the United States). Tortoiseshells and calicos are not specific breeds of cat. The tortoiseshell markings appear in many different breeds. Both calico and tortoiseshell cats are almost always female. This pattern is especially preferred in the Japanese Bobtail breed. A mackerel tabby, with vertical stripes and white socks. The characteristic M can be easily seen on its forehead. ...
Point coloration refers to animal coat coloration with a pale body and relatively darker extremities, i. ...
Galgo Español with light brindle coat This article concerns animal colour. ...
A cat breed is an infrasubspecific rank for the classification of domestic cats. ...
A Calico (called Mi-ke) Japanese Bobtail cat The Japanese Bobtail is a breed of cat with an unusual bobbed tail more closely resembling the tail of a rabbit than that of an ordinary feline. ...
Coat color genetics - Main article: Cat coat genetics
Coat coloration in cats is complex, and controlled by several genes. One gene involved has two alleles: the Orange allele, O, which is the dominant form, (XO), and produces orange fur; and the "Black" allele, "o", which is the recessive form, (Xo), and produces black fur. This cats coat allows it to blend in well with its environment The genetics of cat coat coloration, pattern, length, and texture is a complex subject, and many different genes are involved. ...
For a cat to be a tortoiseshell or calico, it must simultaneously express both of the alleles, O and o, which are two versions of the same gene, located at the same locus on the X chromosome. Males normally cannot do this: they can have only one allele, as they have only one X chromosome, consequently virtually all tortoiseshell or calico cats are females. Occasionally a male is born (the rate is approximately 1 in 3,000 [1]). These may have Klinefelter's syndrome, carrying an extra X chromosome, and will almost always be sterile or they may be a chimera resulting from the fusion of two differently coloured embryos. ‹ The template below (Expand) is being considered for deletion. ...
A scheme of a condensed (metaphase) chromosome. ...
Not to be confused with XXX syndrome. ...
It has been suggested that Chimarism be merged into this article or section. ...
The spotting gene causes white patches to cover the colored fur. Although there is no genetic difference, the amount of white is artificially divided into mitted, bicolour, harlequin, and van, going from almost no white to almost completely white. This cats coat allows it to blend in well with its environment The genetics of cat coat coloration, pattern, length, and texture is a complex subject, and many different genes are involved. ...
The Turkish Van is a rare, naturally occurring breed of cat from the Lake Van region of present-day Turkey. ...
In normal female tortoiseshell cats and in Klinefelter males, the position of the patches depends on which X-chromosome is active in each cell and which is inactivated to become a Barr body. In those species (including humans) in which sex is determined by the presence of the Y or W chromosome rather than the diploidy of the X or Z, a Barr body is the inactive X chromosome in a female cell, or the inactive Z in a male (Lyon, 2003), rendered...
In some cats, mainly calico cats with a prominently white coat, the texture of hair may change between colours.
Gallery of the various types
Tortoiseshell Dark-coloured tortoiseshell | A long-haired tortoiseshell cat Image File history File linksMetadata Size of this preview: 800 × 600 pixelsFull resolution (2048 × 1536 pixel, file size: 664 KB, MIME type: image/jpeg) I, the creator of this work, hereby release it into the public domain. ...
| A medium-haired orange and black tortoiseshell Image File history File linksMetadata No higher resolution available. ...
| A classic tortoiseshell cat Image File history File linksMetadata No higher resolution available. ...
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Tortoiseshell and White | | Classic tortoiseshell & white Image File history File links Size of this preview: 699 × 600 pixelsFull resolution (889 × 763 pixel, file size: 123 KB, MIME type: image/jpeg) picture taken by me, owned by me I, the creator of this work, hereby grant the permission to copy, distribute and/or modify this document under...
| Tortoiseshell & white kitten Image File history File linksMetadata Size of this preview: 800 × 600 pixelsFull resolution (2048 × 1536 pixel, file size: 1. ...
| Orange white and blue point queen Image File history File linksMetadata Size of this preview: 800 × 600 pixelsFull resolution (1552 × 1164 pixel, file size: 619 KB, MIME type: image/jpeg) A faded caliby with with somewhat broken taby pattern Article: Tortoiseshell cat May 2007 I, the creator of this work, hereby release it into the public...
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Calicos Calico with typical eye colour Image File history File links No higher resolution available. ...
| Tunesian wedge-faced calico Image File history File linksMetadata Katze_in_Tunesien. ...
| Long-haired calico cat Image File history File links No higher resolution available. ...
| A rarely-colored calico sleeping on a bed |
Dilute torties Dilute tortoishell tabby cat Image File history File linksMetadata Size of this preview: 800 × 543 pixelsFull resolution (1760 × 1194 pixel, file size: 2. ...
| Long-haired dilute tortoiseshell Image File history File linksMetadata No higher resolution available. ...
| Dilute tortie and mouse Image File history File linksMetadata Size of this preview: 800 × 600 pixelsFull resolution (1024 × 768 pixel, file size: 330 KB, MIME type: image/jpeg) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Tortoiseshell cat Talk:Tortoiseshell cat Metadata...
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Torbies/Caliby Tabby-patterned and red torbie Image File history File links Size of this preview: 800 × 600 pixelsFull resolution (1024 × 768 pixel, file size: 162 KB, MIME type: image/jpeg) Photographer: Kris Miller from Issaquah Title: Coca Taken on: 2004-11-25 19:56:54 Original source: Flickr. ...
| Lynx-patterned torbie asleep Image File history File linksMetadata Size of this preview: 800 × 600 pixelsFull resolution (2048 × 1536 pixel, file size: 706 KB, MIME type: image/jpeg) My photo of cat Trippa when is sleeping. ...
| Caliby with tabby pattern Image File history File linksMetadata Size of this preview: 800 × 600 pixelsFull resolution (2048 × 1536 pixel, file size: 1. ...
| Torbie-striped tortoise Image File history File links No higher resolution available. ...
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Tortoishell points A tortoiseshell-point Siamese cat Tasha, my tortie-point Siamese. ...
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External links Wikimedia Commons has media related to: Wikimedia Commons has media related to:
References Cats Are Not Peas: A Calico History of Genetics - by Laura Gould, Copernicus Books, ISBN 0-387-94796-5 John Russell Rickford is the Martin Luther King, Jr. ...
The headquarters of the Cambridge University Press, in Trumpington Street, Cambridge. ...
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