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KerredansCorral · Mar 31, 2017 3:39 PM

I created this mare today, and found it interesting of how dark she is. She is from a Heterozygous Brown HH, so I'm wondering if it is the brown gene that makes her seem a bit dark, but I don't know if it effects red based horses or not. She has no Sty, and yet she is about a dark as a StySty horse. If the brown doesn't effect red, then she probably is DP DP. She definitely has to have at least 1 DP gene.

Kc HetBrwn SS HM3

ConfluenceFarms · Mar 31, 2017 4:27 PM

I have seen lots of chestnuts with A+ that are this shade. It is just a TAD bit more brown/tan than orange/red like the chestnuts without the A+. I keep meaning to do a trial breeding to one, and see if I can figure out about the DP, but I always forget!

KerredansCorral · Mar 31, 2017 5:38 PM

Yes, but she is not A+, she is At, which is brown, not wild. So does brown darken chestnut too, or do you think that she may be Homozygous DP?

supersarah · Mar 31, 2017 6:02 PM

Guessing a bit, but maybe the ff flaxen makes the contrast seem darker. I think any horse can hide DP. I hope you let us know how she produces, very interesting.

KniKna · Mar 31, 2017 6:10 PM

As far as I know, none of the agouti alleles affect chestnut. Could be wrong. Looking at the genetics guide, I seriously suspect your mare is hom DP.

http://www.huntandjump.com/geneticsguide/?page_id=135

ConfluenceFarms · Mar 31, 2017 7:35 PM

Derp, I meant At!

ObsidianKitsune · Mar 31, 2017 9:37 PM

Hm....was looking at the base colours list and in the DP section there was no example I could find of a brown horse with no sooty and DP. The only way I can think of to know for sure is to breed this girl to double sty, double DP boys and if she throws livers, she has at least 1 DP. If she ONLY throws livers with those boys, she has 2 copies of DP.

Maribo · Apr 1, 2017 1:34 AM

Brown (or any of the other agoutis) does not show on red horses. Agouti restricts black pigment, and red horses to not have black pigment. The OP horse is homozygous DP.

High Five Acres · Apr 1, 2017 6:05 AM

I have a recommendation - Click to change her DP status in the gmt lab. If she is DP DP, then it should so up as the following message.

Your horse has the ? allele for this Dense Pheomelanin gene.
Dense Pheomelanin is an untestable gene. You will always see the option to modify on an untestable gene but will only be charged if that horse does not already have that gene. No edits are available for this gene

I just checked it out with my hom dp foundation colt and that is the message I got for both "?" genes. :)

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