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Submitted on
July 17, 2010


1,760 (1 today)
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Hey there! Having trouble with horse genetics? Confused or lost or how they are passed onto offspring, or will develop with age?

Well, :icondilute-rpg: is here to offer their knowledge of Equine Genetics!

What we can offer....

Genotype: Your horses genetics.     ie: Aa/ee/Dd.
Phenotype: Your horses visual Colour.     ie: Red Dun
Allele: The reference letter for a colour.     ie: Dun = Dd/dd/DD.

Homozygous: Your horses is dominant for a gene. ie: DD
Heterozygous: Having two different Alleles for a single gene. ie: Dd

:bulletyellow::bulletyellow::bulletyellow: I have a Horse, but I don't know what color they are! :bulletyellow::bulletyellow::bulletyellow:

No worries, just send us a link via a comment of you horse(s) and we can tell you :) We'll provide both possible Genotype and Phenotype.


We're happy to educate and offer answers to any question your have about genetics :)

:bulletyellow::bulletyellow::bulletyellow: Useful links and sites :bulletyellow::bulletyellow::bulletyellow:

Coat Calculator
Equusite: colors and patterns
White Horse productions; colors and patterns
Sea Spirit of the Forest; Horse colors and markings
Champagne & Champagne combo's
New Dilutions
More info on Pearls

:bulletyellow::bulletyellow::bulletyellow: Useful links on :bulletyellow::bulletyellow::bulletyellow:
The Universal HARPG Color Code Part 1
The Universal HARPG Color code part 2
The Universal HARPG Color Code part 3

Hidden comments are merely things unrelated to this journal. Journals may have been reused.
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Odyssey-Studios Feb 10, 2014  Professional Artist
What would my horse Rockey by Odyssey-Studiosand Ref Sheet: Scars of a Broken Heart by Odyssey-Studios
AniaJag Feb 11, 2014  Hobbyist General Artist
The black QH would be E_aa, with the space being either E or e. Depends on if you want her to only have black-based babies or not; if you want her to be able to have chestnuts, it would be Eeaa.

The bay TB would be E_A_ and I think his white markings look like heterozygous splash, so the complete geno would be E_A_SPLn. Of course if the markings are a different pinto pattern SPLn would be replaced. If you want him to have only bays, EEAASPLn. If you want bays, blacks, and chestnuts, EeAaSPLn. Bays and chestnuts? EeAASPLn.

Hope this helps!
Odyssey-Studios Feb 11, 2014  Professional Artist
Thank you! That really helped a lot.
J-Dove Nov 20, 2013  Hobbyist General Artist
what about calculating the foal's genotype? I have a mare and a stallion with their genotypes anyway you can tell what the foal's outcome could be?

Mare is a silver chestnut tovero leopard. ee/Aa/nZ/nTb/nO/nLp
Stallion Sooty buckskin dominant okapi dun tobiano Ee/aa/nCr/nSty/OkOk/nT
AniaJag Nov 21, 2013  Hobbyist General Artist
This is a great site to use:…
For your foal, there 192 options, so I can't really list them all LOL  (this link should bring them up, but if it doesn't just use the link above… )
Idk how the Okapi passes on in his breed.
J-Dove Nov 21, 2013  Hobbyist General Artist
wow 192 options! this site is awesome, thanks.
AniaJag Nov 22, 2013  Hobbyist General Artist
You're welcome!
HorseLuvv Oct 5, 2013  Hobbyist General Artist
thanks :D
HorseLuvv Sep 26, 2013  Hobbyist General Artist
It's  a bay leopard appaloosa
AniaJag Sep 26, 2013  Hobbyist General Artist
It would be at least E_A_LP_PATN1. The blank spots are determined by the parents, but this is the least the genotype can be. A good place to play with is…
Hope this helps!
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