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6. Also, what makes this horse appear so red even though it's a buckskin?

http://www.huntandjump.com/horse.php?horseid=3883228

1. This ties in with your third question, At is the new brown, a horse that is Ata E? Sty? will express as brown, it can still show on some horses as well, and will show when AtAt. An AtA horse will express as bay.

A+ is the wild gene and will create a wild bay/buttermilk buckskin with one copy plus E.

2. Splash 2 is one of the 3 splash genes in game, it is homozygous lethal and lethal with Splash 3 (Splash 3 is LE)

3. See above :D

4. Yes, not too well versed in it yet but the LP gene is still leopard and will cause the spots, the ECA3P is like the pattern gene, and Ammit will yell at me for referring to it like that, but more of the ECA3P the bigger the blanket. LPLP is snowcap as it was years ago. It's fun to experiment with, as the appaloosa patterns are now totally dynamic and none are the same, spot and blanket size is inheritable, it's awesome!

5. Like I said in 2, Splash2 is homozygous lethal and lethal with 3. All whites are lethal together as they had been, Sb3 plays nice with everything but Sb1 and 2 are lethal with white 1 and 2. There's a nifty document on the facebook page with all of the lethal combos!

6. That's another cool aspect of the new appy, bronzing, which I haven't figured out yet, but it really distorts base colors and causes dark spots

OH and DP is new, it's a non-testable gene that causes red based horses to show darker. Chestnuts with DP may show as Liver chestnut. A chestnut horse that is DPdp StySty will express as liver, and a DPDP StySty will express as liver and look black (DPDP and Sty? will show as liver too)

The changes/additions to the agouti gene are pretty complex. Here's a complete run down;

A+: Wild Bay, is the most dominant allele and will override all of the other three alleles. It's most observable sign at the moment is a lightening of the legs. They appear more grayish than black and the gray is patchy rather than solid.


A: normal dominant Agouti, which creates the standard Bay with strongly black points.

At: Brown, is recessive to Wild Bay and normal Bay, and so does not show in combination with these alleles. Homozygous AtAt horses will be lighter than Ata horses. When paired with the recessive agouti, a, it darkens the coat significantly, especially on the neck, which will appear solidly darker brown.


a: the recessive allele which has no effect on black pigment at all.

Beautiful horse fantasy

If it is a chestnut and has SstySsty and is at least DPdp, or SstyS and DPDP, it will color test as Liver chestnut. If it has two copies of both these darkening alleles a chestnut horse will still be called a Liver Chestnut, but it will appear black.

Palominos with similar sets of darkening genes will be called Chocolate Palominos. When they have four copies of darkening genes, they will be quite dark, but not black.

Any horse can carry DP, but it will not affect black horses since it only influences red pigment, which black horses don't have. With experience you can learn to recognize it in Champagnes, Bays, and Bay Duns. Red duns with at least 3 darkening copies will test as Liver Red Duns.

For lined horses, the same testing results will be returned under similar circumstances for Chestnuts, Palominos and Red Duns. Otherwise you will have to depend on appearance and knowing the genesets of the parents.

If a horse is homozygous for DP, all its foals will be at least heterozygous for DP, even if they don't have two Ssty alleles to make them liver. If both parents are homozygous for DP then the foal will definitely be homozygous for DP. If one parent is homozygous DP and the other is heterozgous DP, the foal has a 50/50 chance of inheriting DP from the heterozygous parent. If both parents are heterozygous DP, the foal has a 25% chance of being homozygous DP, a 50 % chance of being heterozygous DP and a 25% chance of being dpdp.

So does this horse have any DP?
http://www.huntandjump.com/horse.php?horseid=4766232

Wow SandyCreekAcres! Thank you for your detailed explanations and answers. This helped shed alot of light on genetics for me!

Good info!