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Description

This tutorial is out of date. Please see more information here .

There are multiple cat genetics tutorials about, but they tend to only cover the basics (base colors, dilutions, tabby, white-spotting, pointism, & tortie/orange). In-depth cat genetics tutorials tend to be lacking. So thus, this. I have no idea how long this will take to be completed. Hopefully before 2016.

At long last, part 7. Amber is a late color change first recorded in Norwegian Forest Cats. The gene mutation is caused by an extension gene that essentially causes melanin (black pigment) to gradually be restricted only to the skin and not show in the hair, thus leaving behind pheomelanin and creating a reddish cat. They are born with full pigmentation, but at around 3 months 0f age they start to change color, starting with a patch on the back that expands to cover the entire cat. Since it is red pigment, tabby striping is seen when they finish their color change. It is caused by a recessive gene that has thus far only been identified in Norwegian Forest Cats. Russet is a color only identified in a few Burmese cats, and thus far has only been seen in chocolate and seal points. They are born as 'odd looking lilacs', but then start to grow darker (maintaining a lighter underside and tail tip throughout their lives). After that, they gradually turn redder until they are what appears to be a red ticked tabby (even if they do not carry agouti) with pink nose, paw pads, and lighter underbelly and tail tip. It takes about one and a half years for this color change to finish. The first image shown is based off newborn kittens, the second off a 12 week old kitten, and the third upon a six month old kitten.

Part 1 (Base Colors):
Cat Genetics Tutorial Part 1 (Base Colors)

Part 1.5 (Torties):
Cat Genetics Tutorial Part 1.5 (Torties)

Part 2 (Dilutions):
Cat Genetics Tutorial Part 2 (Dilutions)

Part 3 (Tabby):
Cat Genetics Tutorial Part 3 (Tabby/Agouti)

Part 4 (White-Spotting):
Cat Genetics Tutorial Part 4 (White)

Part 5 (Pointism & Albinism):
Cat Genetics Tutorial Part 5 (Pointism & Albinism)

Part 6 (Silver & Gold Series):
Cat Genetics Tutorial Part 6 (Silver & Gold Series)

Part 7 (Color Changes):
Cat Genetics Tutorial Part 7 (Color Changes)

Part 8 (Weirdos):
Cat Genetics Tutorial Part 8 (Weirdos)

Part 9 (Hair):
Cat Genetics Tutorial Part 9 (Hair)

Part 10 (Tail):
Cat Genetics Tutorial Part 10 (Tail)

Part 11 (Ears):
Cat Genetics Tutorial Part 11 (Ears)

Part 12 (Other):
Cat Genetics Tutorial Part 12 (Other)

Description

This tutorial is out of date. Please see more information here .

There are multiple cat genetics tutorials about, but they tend to only cover the basics (base colors, dilutions, tabby, white-spotting, pointism, & tortie/orange). In-depth cat genetics tutorials tend to be lacking. So thus, this. I have no idea how long this will take to be completed. Hopefully before 2016.

At long last, part 7. Amber is a late color change first recorded in Norwegian Forest Cats. The gene mutation is caused by an extension gene that essentially causes melanin (black pigment) to gradually be restricted only to the skin and not show in the hair, thus leaving behind pheomelanin and creating a reddish cat. They are born with full pigmentation, but at around 3 months 0f age they start to change color, starting with a patch on the back that expands to cover the entire cat. Since it is red pigment, tabby striping is seen when they finish their color change. It is caused by a recessive gene that has thus far only been identified in Norwegian Forest Cats. Russet is a color only identified in a few Burmese cats, and thus far has only been seen in chocolate and seal points. They are born as 'odd looking lilacs', but then start to grow darker (maintaining a lighter underside and tail tip throughout their lives). After that, they gradually turn redder until they are what appears to be a red ticked tabby (even if they do not carry agouti) with pink nose, paw pads, and lighter underbelly and tail tip. It takes about one and a half years for this color change to finish. The first image shown is based off newborn kittens, the second off a 12 week old kitten, and the third upon a six month old kitten.

Part 1 (Base Colors):
Cat Genetics Tutorial Part 1 (Base Colors)

Part 1.5 (Torties):
Cat Genetics Tutorial Part 1.5 (Torties)

Part 2 (Dilutions):
Cat Genetics Tutorial Part 2 (Dilutions)

Part 3 (Tabby):
Cat Genetics Tutorial Part 3 (Tabby/Agouti)

Part 4 (White-Spotting):
Cat Genetics Tutorial Part 4 (White)

Part 5 (Pointism & Albinism):
Cat Genetics Tutorial Part 5 (Pointism & Albinism)

Part 6 (Silver & Gold Series):
Cat Genetics Tutorial Part 6 (Silver & Gold Series)

Part 7 (Color Changes):
Cat Genetics Tutorial Part 7 (Color Changes)

Part 8 (Weirdos):
Cat Genetics Tutorial Part 8 (Weirdos)

Part 9 (Hair):
Cat Genetics Tutorial Part 9 (Hair)

Part 10 (Tail):
Cat Genetics Tutorial Part 10 (Tail)

Part 11 (Ears):
Cat Genetics Tutorial Part 11 (Ears)

Part 12 (Other):
Cat Genetics Tutorial Part 12 (Other)