Pim
Member
Posts: 346
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Post by Pim on Nov 7, 2020 16:10:47 GMT -8
Update it is called even marked. This pattern is standardized in the show aspect of mice so it might be possible that it is a genetic mutation that someone has found. I'll read some more and get back to you.
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Post by Shooting Star on Nov 8, 2020 5:34:18 GMT -8
Update it is called even marked. This pattern is standardized in the show aspect of mice so it might be possible that it is a genetic mutation that someone has found. I'll read some more and get back to you. Even marked is just selectively bred piebald (ss). Another white spotting mutation, not applicable in this case.
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Post by beachbumgerbils on Nov 8, 2020 5:57:24 GMT -8
I guess we're back to being patient and seeing what happens! The patches seem to be spreading a little bit. I will take frequent pictures.
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Post by betty on Nov 8, 2020 7:43:09 GMT -8
Back to being patient!
A skill I possess - even if I don't like it!!!
Thanks for clarifying the sciency and easy to follow 'rules' for eliminating those three conditions Shooting Star. I have written those facts down to try to get them to sink in my head.
You didn't update on hormonal though - is that because it is so unlikely it wasn't worth a comment?
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Post by beachbumgerbils on Nov 9, 2020 19:20:16 GMT -8
Any way that prolonged extreme temperature could play a role? Seems unlikely, but I know the ambient temperature affects colorpoints. This girl lived outside through the heat of a South Carolina summer (routinely over 90 degrees F). Just brainstorming!
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Post by betty on Nov 10, 2020 2:50:56 GMT -8
Certainly another theory - especially if she has something unique going on inside her that it could be due to environmental factors.
It would certainly be possible if that 'thing' was triggered by temperature at the time of hair formation - and therefore has stayed in the coat even though the temperatures are now in a lower range?
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Post by Shooting Star on Nov 10, 2020 14:37:31 GMT -8
betty - Hormonal is actually one of the most likely explanations in this case, I've just never seen it on a Black to this degree. Something temperature-triggered is theoretically possible. If she was outside though, sunlight could definitely cause fading. Happens in horses. And people! colorgenetics.info/equine/gallery/black/camelia-wb
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Pim
Member
Posts: 346
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Post by Pim on Nov 14, 2020 11:53:05 GMT -8
Interesting, I need to look into this! I love genetics but haven't really looked into anything.
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Post by betty on Dec 8, 2020 15:52:24 GMT -8
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Post by beachbumgerbils on Dec 10, 2020 13:42:00 GMT -8
Disappointingly, but unsurprisingly, her patches faded pretty rapidly. However they did just fade. In the right light (difficult to capture on camera), you can still notice a slight brown tinge in those areas. I haven't noticed a molt yet, so I suspect it is hormone related.
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Post by betty on Dec 10, 2020 14:59:04 GMT -8
Yes, well the hair changes colour just before a moult anyway - usually getting darker as the hair completes its growing cycle. So it is possible that a moult is imminent?
If they were hormonally linked to comething specific at the time of last moult start, then we may not see them again.
But, if they are something else - them they could come back all afresh with the new hairs!
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Post by beachbumgerbils on Dec 15, 2020 9:04:39 GMT -8
I'm planning to keep her at least for the next couple of months, so I'll definitely let you know if anything exciting happens!
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Post by betty on Dec 15, 2020 9:56:17 GMT -8
We ALL want to know if anything exciting happens...
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Post by betty on Feb 10, 2021 7:29:23 GMT -8
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Post by beachbumgerbils on Feb 12, 2021 13:07:51 GMT -8
I do still have her and the patches are much lighter, but still present. Because she's black and wiggly, it's really hard to get good pics now that the pattern is more subtle. I'm planning to keep monitoring her for a few more months. If the patches remain, I will probably breed her and then breed her to a son and see what happens.
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