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Do you have a good full body photo of colorpoint cats are progression that happens on cats? :]
I wanted to use it for genetics and art design.
Here are a couple i found, i hope they work for you
Lots of ragdolls in the comments here. I especially like this one, the way the white spotting on the body reveals itself:
This one is really dramatic:
Some tabbies as well
do we know why the dilution gene turns black into cool gray (blue) while pointing turns black into a warmer brown (seal)?
Yeah, we actually know quite a bit of what dilution and point restriction does biochemically.
The dilute mutation makes the pigment molecules clump together, resulting in bigger, unevenly distributed granules. I have to think this changes the light absorption/reflection properties of the hair, which is a kind of magic i don't dare to dabble too deeply (for now).
The point mutation makes one of the critical enzymes in pigment production fold wrong (resulting in a dysfunctional peptide) under a certain temperature, so the pigment molecules themselves are the same, only there's less of them. And this is where one of my fixations comes up: eumelanin is fundamentally brown. Black cats are really really dark browns. I think in points this brownness is what becomes apparent due to the reduced pigment concentration.
Question in particular for OC/storytelling purposes but I'm also curious!
Is it normal for a seal point cat to get really dark brown, nearly black, within a year of being born? He lives outside in a marshy environment and definitely isn't in the best shape, his ribcage is visible, but it's not that cold outside. He was born pure white.
Is this a sign of health problems, internal temperature regulations? I know points will get toastier as they age... But I've only ever seen older points get so dark, especially senior cats.
Hm, i'm not that well experienced with points, but it sounds plausible to me. (Although i'll mention, body weight affects the color in the opposite direction: the more fat - so: insulation - the cat has, the darker it'll get.)
This cat is one year old and lives indoor
This one is 1.5 years old on the second picture
We got colorpoint/ temperature sensitive albino cats, rats, mice, rabbits, dogs, guinea pigs, squirrels, even saw a bird example. What's keeping us from colorpoint horses? Is that something we could theoretically genetically engineer, similar to how the albino anole was made? You could almost have a colorpoint pet of every common mammal at this point (ha)
The gene-edited anoles article was very interesting, thank you for bringing it to my attention!
Making an albino is generally easier than making a colorpoint, because knocking out a gene is easier than editing a single nucletide - but it can be done! Single base editing exists. So yeah, at the very least we could try to replicate the mutations of other colorpoint animals is a horse, and see if they turn out pointed here too.
This cat is a mink!
...Is it tho?
Differentiating between minks and points on the darker side is often difficult. Both being temperature-dependent, they have a wide range of shades and the darkness levels of the adult cats overlaps greatly.
Let's see the tricks that i found the most useful for deciding if a cat is a point (cscs, siamese-type color restriction) or indeed a mink (cbcs, tonkinese-type color restriction)!
First; eye color, of course. The eye of a pointed cat is very rarely anything but clear (although not necessarily intense) blue. Minks are less determined, but their eyes usually noticeably lean towards a more greenish color which is called aqua. Here's a detailed description of it.
black tabby point, lilac mink
Second; and this is less tangible, but it's what i noticed: points, however dark they get, are always have less even coloring, the difference of the lightest and darkest shades is bigger. Most notably, they usually remain lighter around their necks.
A point and a mink: both darkened to the extremes. If anything, the point might be actually darker brown on the flanks. However it still has an almost off-white collar!
Blue eyes, great body-point color contrast, especially light around the neck: this infographic used a pointed (= siamese) cat for representing mink (=tonkinese).
do you know of any animals displaying some kind of acromelanism besides cats/guinea pigs/rabbits/rats/dogs? I think I saw a picture of a colorpoint kangaroo or wallaby or something the other day, and seeing the ask about colorpoint squirrels reminded me of it.
Yes! Other than what you've listed, i have a canary, a hamster, a mink and a baboon in my TYR posts, and here are some more, without identified mutations:
colorheaded dove
maybe this was your colorpoint kangaroo?
and a roe deer
I heard people talking online about a colorpoint squirrel existing. But I cant find a pic. Do you know anything about it or where I can find the image?
I found one candidate in this article:
And this one:
I heard there's a new gene, Mocha. What's up with that?? I heard it's co-dominant with the other genes like sepia and the normal point.
How do I recognise it and its variants like Siamocha, and Burmocha??
What does mocha look like in other colours like blue, chocolate, fawn, or red and etc????
Mocha is a tyrosinase allele just like sepia and point, and it seems to be intermediate with them. It produces a cat that's lighter than sepia and more even than point.
You can see all kind of colors here:
Dr. Douglas Schar Located near Washington, DC To contact us, scroll down to the contact form or email [email protected]
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Blue siamocha mother with various kittens
