r/CatGenetics • • Dec 25 '23

General Genetics Question Just curious if you can guess her breed (we have papers)

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696 Upvotes

r/CatGenetics • • Oct 11 '25

Coat Color Is this a common coat mutation?

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564 Upvotes

This is Smigol, I've had him for 7 or 8 years. I adopted him from a completely normal litter, with his mother being a calico cat.


r/CatGenetics • • Dec 02 '23

Coat Color What are my cats genetics??

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545 Upvotes

r/CatGenetics • • Aug 22 '26

Coat Color Update for y’all since it’s been a while!

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501 Upvotes

Logan is around 4 months now. :) His coat seems to be shifting away from earlier grey-ish tones toward brown-ish. As his adult coat is starting to come in, flecks of lighter hair are appearing all over his coat. Still proving himself a very fun genetic study subject.


r/CatGenetics • • May 10 '26

General Genetics Question What’s going on here???

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488 Upvotes

r/CatGenetics • • Dec 14 '23

Coat Color Can anyone tell me about my cat’s genetics?

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485 Upvotes

I’ve had him for 2 years now. He’s deaf, but sometimes seems to be hearing in random spurts. I’m wondering what y’all can tell me about him.


r/CatGenetics • • Nov 12 '23

Genetic Parentage Question I have no clue who my cat’s parents are. Got any clues?

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404 Upvotes

Ill add some pics, maybe yall can help me?


r/CatGenetics • • May 30 '26

Coat Color Foster update #1

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393 Upvotes

We made it to 5 weeks old! Still not sure what’s genetically going on here - interestingly, markings do seem to be getting more prominent with age rather than fading. Pretty cool for a dumpster kitty


r/CatGenetics • • Sep 28 '26 Heartwarming

Coat Color My red-on-blue girl, Pippi!

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391 Upvotes

Red-on-blues pop up in here, so I wanted to show you my Pippi, an example of a heterozygous red-on-blue ticked tabby. She’s featured on the Messy Beast page (ironically, the place that enabled me to identify her coloration long before I met her), and was born a shelter cat in Iowa.

Something I hadn’t noticed until recently is that she also has a sprinkling of black hairs in her coat, mixed in with the orange and grey!


r/CatGenetics • • Nov 11 '23

Genetic Parentage Question Found this baby as a stray 6 years ago. any guesses on her parents?

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351 Upvotes

honestly i don’t know much about cat genes lol. let me know what you think!


r/CatGenetics • • Dec 20 '24

My cat lost his markings over time

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350 Upvotes

Top photos show my cat about 2 years ago, while bottom ones show him earlier today. He should be about 4 years old now. From reading online, I think he is a blue classic tabby. But I'm curious why his markings are so faint nowadays, especially compared to other photos of classic tabbies I see online. In some lightings I can still see a faint version of the white ring he used to have, but it's nothing compared to what it looked like when he was younger. Is it typical for patterns to change with age?


r/CatGenetics • • Oct 16 '25

General Genetics Question vet says he’s a male calico!

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346 Upvotes

I recently posted on r/cats and was recommended this sub! I took my kitten (5 months) to the vet for his first check up yesterday and the vets were so in love with him because of his black and white spots. I was told that it would be a good idea to get an ultrasound to make sure he isn’t intersex and doesn’t have any hidden ovaries that will cause him to potentially go into heat as he gets older.

There were a lot of great people in the replies of my initial post that were educating me on chimeras, the different chromosomes, and more! Unfortunately, I didn’t think to post more pictures, especially ones of his white spots. I don’t know the exact breed of his father, as he was a street cat, but the mother is a calico. He is the only orange cat in the litter, the rest were black and I think one or two had some white spots.

I tried to include all of his markings that I’ve noticed in the pictures- • black fur on his paw that extends lightly to his back, with the black spot. On his paw, the skin can also be seen to be black spotted along with the peach color. • some white fur on his neck and the majority of it being in his crotch area • he has one black whisker, which I find very interesting

last picture for sillies! thank you so much in advance🙏


r/CatGenetics • • Jun 25 '26 Heartwarming

Coat Color Genetics of new kitty’s unusual coat?

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338 Upvotes

Hi, I was referred to this sub from another to get some insight into my new DSH kitty’s unusual coat. She’s a former stray (no chip, not spayed, no owners found) so we decided to give her a home. She has maybe the most unusual coat I’ve ever seen on a cat. She has white fur with gray/black tips on her back, and her chest/belly is orange. She has tabby stripes and spots on her sides (almost look like rosettes), and she has solid black toe beans (not tortoiseshell).

Can anyone provide some insight into her genetic makeup and how a coat like this comes about? At first I thought she was a tabbico but she’s so uniformly gray on top but gold on bottom with solid toes. I can’t imagine what her parents would have to look like!


r/CatGenetics • • 3d ago

Coat Color Not sure about the coat color

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312 Upvotes

Picked up this girl and 2 of her brothers ~4mo ago as they were actively dying on a pile of rubble. The two brothers are "simple", both are fake(dark tabby) tuxies

But this girl is weird, her color is consistent with a dilute tortie but with a bunch of really black spots

The last picture is her after a week in our care hehe, she was tiny


r/CatGenetics • • Sep 15 '26

General Genetics Question ginger tabby with complete heterochromia, any ideas on the genetics?

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311 Upvotes

there’s a tortie that hangs around in my relatives’ garden. she recently gave birth to 5 kittens and we dont know who the father is but one of the kittens is a ginger tabby with complete heterochromia. how could this occur in a ginger cat? i thought heterochromia was linked to white fur gene. are there any genetic explanations for this? (mother and the other kittens on slide 4)


r/CatGenetics • • Oct 22 '25

Coat Color I pulled a kitten out of a bush, and is brown?

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311 Upvotes

I didn’t know brown cats existed until 2 months ago, and I’ve been trying to do research into the cat genetics, such as how all cats are black cats or orange cats(genetically) with different gene variations. What is the gene type for brown cats? She also has a white chest floof/white bikini bottom. She has been getting random white furs pop up on her body as well. She also has barely visible stripes. What kind of cat is she?


r/CatGenetics • • Jul 04 '26

Coat Color Mystery coat kitten update #3

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294 Upvotes

10 weeks old now!
There is a slight red-ish hue to his coat that seems to be coming through more.
His eyes took unusually long to turn from kitten blue but now seem to be heading toward green.
He has also been officially adopted by me last weekend 🎉 and is getting along with my 3 year old flame point girl great.


r/CatGenetics • • 11d ago Mindblown

General Genetics Question chimera cat genetics

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293 Upvotes

good afternoon!

i own an XY/XY male chimera cat that exhibits solid black, black tabby, orange, and white. how is this possible if he is not XX/XY?

we are chalking it up to either a somatic mutation or a possible 3rd distinct set of DNA. we are working closing with Texas A&M to have a skin biopsy done.

we have done karyotyping along with DNA testing. any thoughts?


r/CatGenetics • • Jun 19 '26 Heartwarming

Coat Color Mystery coat foster update #2

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288 Upvotes

7/8 weeks old. Pretty certain we’re smoke now? He changes and gets cuter every day.


r/CatGenetics • • Jan 06 '24

Coat Color What do you call this type of fur pattern/colour?

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284 Upvotes

r/CatGenetics • • Nov 18 '23

Coat Color What's his fur pattern is called

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283 Upvotes

r/CatGenetics • • Feb 13 '24

Specific Gene Question blindness

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278 Upvotes

this is my girl miya, she was the only cat born with glaucoma in the litter. Her eyes had to eventually be removed.

would mother cat (all black) be likely to birth more blind cats ? or miya herself be more likely ??

i am not planning to, she will be stellerized later, but very curious as to how this works.


r/CatGenetics • • Sep 30 '25

Coat Color Recently took in a stray with a unique coat pattern

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269 Upvotes

This lovely lady showed up at our house a couple months ago (bearing gifts!) She has such an interesting and unique coat. We've always wondered what this would be called?


r/CatGenetics • • Oct 12 '26

Coat Color Meet Adara, my true albino girl — showing her natural ruby eye glow in ambient lighting (no flash).

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260 Upvotes

Meet Adara, my true albino girl — showing her natural ruby eye glow in ambient lighting (no flash).


r/CatGenetics • • 4d ago

Coat Color Help us ved med folks out!

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255 Upvotes

So everything that I thought I knew about chimeras apparently is false. Can you lovely color nerds break this down for us? What are we even looking at?