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OopsDotCom · May 24, 2022 5:25 PM

I want to turn this white into chestnut or some other color that will show the satin shine. But chestnut isn't in the list of genes that can be modified.

G4 11pt9 sasa 15708163

Cavalynn · May 24, 2022 5:38 PM

Modifying the chestnut won't help the satin shine show. You need to remove some of the white. Since the dam is homozygous for tobiano, you can't remove that. But you could remove the splash or turn the white 8 into sabino 1, or reduce the white factor. I think I'd reduce the white factor and if there was still too much white covering up the base coat, remove the splash.

Cavalynn · May 24, 2022 5:41 PM

Just to note, the horse is already chestnut, and you won't find "chestnut" by name as a gene to modify. Chestnut is a phenotype, not a gene. The gene you would look at is Extension (e or E) and if it's homozygous recessive (e/e), the horse is chestnut, assuming there's no cream or some other gene affecting it.

OopsDotCom · May 24, 2022 6:54 PM

I removed the white factor altogether and she's beautiful. I think if you click on the picture it refreshes it.

OopsDotCom · May 24, 2022 8:32 PM

So e/e is chestnut as long as there's nothing else to interfere? Does it matter whether A/A or A/a or a/a?

Cavalynn · May 24, 2022 8:37 PM

That's right. AA, Aa, or aa make no difference on a chestnut because they only affect how black pigment is distributed, and ee has no black pigment.

OopsDotCom · May 24, 2022 11:07 PM

Thanks ;)

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