Question about Homozygous stallions and mares colour

Vickijay

Vickijay

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Hi,

For colour buffs I think this will be a very simple question so sorry about that!!

If I put my mare to a homozygous stallion how does her colour come into it?

I like Sempers spirit and Ringo.

My mare is classed as brown but to all purposes she is black, just the few brown hairs on her nose.

So how does her colour come into it?? Is it the same as when I bred my spottie foal from a few spot knab and he made her spotty and my mare added the colour??

Thanks,

Vicki
 
I'm sure a clever colour person will be along shortly, but basically I think the base colour (black/red)is worked as always depending on what genes foal gets from both mum and dad. Then any modifiers it inherits (bay,creme etc), then dad adds white splodges over the top! Not very technical sorry, but I think that's the gist of it!
 
Her color comes into it in the same way that all of her other genes come into the equation. To fully understand the possibilities of color combinations, you need to know the color of her parents and the color status of the stallion. Color is modified by all the other color genes, so, for example, a dilute stallion will throw foals that are buckskin, palomino, smokey black or smokey cream or smokey brown depending on the status of his other color genes and your mares genes (the stallion is homozygous for cream as he is a dilute stallion, but is he a cremello or a perlino? Does he carry agouti or brown? etc etc). There is a website where you can enter the colors and get % probabilities

http://www.animalgenetics.us/CCalculator1.asp

If the stallion is homozygous for pattern, the you *will* get that pattern. Pattern can be modified too, but let's not go there....
 
it depends as well if your mare carries the chestnut gene and if the stallion you use carry a chestnut gene then you could get bay & white if no Agouti then Black and white if no chestnut is involved from only one side ie it would not matter if your mare was chestnut if either of the stallions are not chestnut carriers.
 
as said to you on PM - both SS and GS are homozygous for the coloured and the black gene....which means no matter what you will emd up with a black and white oir bay and white foal. No Chestnuts.
 
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