(homozygous dilution, represented as 'dd', whereas non dilute is represented as DD and non-dilute, carrying the dilution Calico and the white spotting gene So that explains how we get torties in the various colours. A cat with this genetic combination could have non-dilute kittens and dilute kittens IF the other parent also has the dilution gene. Dd = non-dilute, carrying the dilution gene.A cat with this genetic combination will only ever have non-dilute coloured kittens. A cat with this genetic combination will always pass a dilution gene onto his or her offspring. When we write down the dilution genes, we represent them like this: So a blue cat is a black cat, with less pigment in each strand of fur, which makes it appear blue (grey). It reduces the amount of pigment in the fur of the cat. It is a genetic mutation, which is totally harmless. The dilution gene is a clever little gene. If the cat has two dilution genes, then black becomes blue, chocolate becomes lilac and cinnamon becomes fawn.
#Dilute calico Patch#
If you look closely at the chin you can see a tiny patch of cream. You can see how the cream is so finely stippled across her body that you can barely see it. The image above is a blue tortie kitten, sometimes referred to as a blue-cream. Torties can come in any of the British shorthair colours: black, chocolate and cinnamon. Tortie cats are two colours, and the colours are randomly, finely stippled across the cat's coat. Which is quite helpful when sexing kittens: any tortie kitten is a girl. As a result, calico cats can only ever be female. That makes a calico a tortie cat - a cat that has a non-red gene and a red gene. But on top of that the cat has a red gene from its mum. Calico British Shorthair GeneticsĮssentially a calico cat has its normal colour (black, chocolate, cinnamon etc). Their base colour and cream/red appear in patches of colour across the cat, and the white usually presents itself as a standard bicolour pattern (face mask, tummy and paws become white). their base colour (black, blue, chocolate, lilac, cinnamon or fawn) They are essentially tortie cats with the addition of white, so they are 3 colours: Calico British Shorthair appearanceĬalico British Shorthairs are sometimes called tricolour cats. Calico British Shorthair cats do make particularly cute little kittens, especially when they are super chunky (and most importantly healthy).
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