Question for our colour experts :)

[Truly]

Please can anyone explain how the Agouti gene effects the shade of buckskin?

I've got 3 bay mares in foal to my cremello boy Electrum.. he is AA but I only know the agouti status of one of my mares ..she is Ee AA , the other two are Ee A?

I know the foals will be either Buckskin or Palomino, but if buckskin can you tell what shade from their agouti status?

Thanks in advance

[HeadlessHorseman]

HH

[HeadlessHorseman]

sorry I got excited and did a double post....

I can't wait to read...

HH

[Truly]

Hope you bought a big bag of popcorn HH...I'm still waiting for an answer lol

[HeadlessHorseman]

No PROBLEM



HH

[color]

it is not affecting the shade. It is like with Palomino, you have them from very light to very dark and the same exists in Buckskins.

AA on chestnut is not visible and it means homozygous for Agouti, which means never a smoky black, only buckskin or palomino will result from this.

[Truly]

I thought that too Gwen but according to someone on the Horse and Hound forum agouti affects the shade of buckskin.
I think it has something to do with the brown gene being common and the difference with bay and brown?

I could post my question on H&H but just wanted to find out more from our colour experts on here

[color]

I do not see what the H+H people would mean. Agouti IS the gene that is giving you the buckskin color, without Agouti present you have a horse of black color. On Chestnut its not visible and therefore also not on the Palomino nor Cremello as you can clearly see from Electrum who is an AA Cremello. It does NOT affect the chestnut based colors, it only works on Black and if present makes a black horse a bay horse. Aa on Black is Bay heterozygous and AA on Black is Bay homozygous. It has NOTHING to do with the shade. There is only one exception which is the At and called Brown or Seal Brown that is the darkest version and when you have a buckskin based with that it looks almost just like a dark bay with golden muzzle, golden around the eyes and golden flanks and thats it. All other buckskins like palominos have their different shades of light to darker coloring like bays have different shades and chestnuts have different shades.

[Truly]

As I said that is what I thought but they didn't just refer to the brown/tan gene but the agouti gene.....so I wondered if being homozygous or heterozygous made a difference?
I'm only talking about shade of buckskin not palomino btw

[color]

I know you do not talk about Palomino. There is no difference if heterozygous or homozygous for Agouti.

[RiddleMeThis]

There is possibly a difference if the horse is homozygous or heterozygous for the Brown (At) Agouti. Regular bay agouti is the same in heterozygous or homozygous form.


There usually IS a color difference between A (bay agouti) and At (brown agouti.)

[color]

that was what I wrote, a difference in shade between At (dark buckskin with just some golden parts, I do have two of such and sold one to USA, Yeager GF) and A (normal bay), did I not make that clear enough? sorry if so.

[Truly]

That may be what they meant but it sounded like the agouti had an effect on shade too.
Thanks for the input

[Bellissima]

No PROBLEM



HH

I know it's off topic, but I absolutely LOVE these little smiley guys!!!!

Now, back to regularly scheduled programming......

[HeadlessHorseman]

I find a lot of emoticons on Photobucket...super easy...just cut and past the IMG line....



Give it a try..

HH