I think I can help here we have been studing color genetics for years now.
A palomino horse has a cream gene and a red gene
A chestnut has two red genes
There is a very seldom chance you will get a dun because niether horse has a black gene.
The chances for a palomino depends completly on wether or not the sire passes on the cream gene.
You have a slighly greater chance for a chesnut bit like eveyone else says its just a crap shoot on what color your goin to get. The best way to get a palomino is breed to a cremello stallion (almost 100%) breeding to a perlino gives you a slight chance for a dun or buckskin. The way to garantee a buckskin or dun is to breed to a perlino stallion that is homozygous for the black gene. There is only one stallion I know like this and his name is RFF Starbuck.
Yeh I agree with up above a palomino is a di-looted Chestnut it has a red gene as well as a cream as above has said so if you were to want a pally id say defenently go with breedin her to a cremello it has both cream gene and is more defenent to through a pally.
But yeh if you were to breed he with a pally then I would say she would probly through a chestnut but when the foal grows up and you want to breed that then you could hav a slight chance of gettin a pally out of that but it would only be slight.
But yeh id still say 50/50 between pally and chestnut but more aiming to chestnut
I agree with the mostpart. It depends on the stallion. We know your mare throws the red factor. The question is does the stallion throw his dulite or is he dominant to throw the red factor instead of his dulite??? That is a very tricky thing to do is guess color. Genitics are tricky sometimes. But with the coat calculator this id what he will throw.
I love these color questions,,Keep them coming,,,LOL
Ok you have a 50/50 chance of palomino or chestnut. You can not have a dun or buckskin because neither the mare or the stud have the bay gene which is needed to have a buckskin.
A cremello or perlino (double dilutes) crossed with a chestnut will ALWAYS give you a palomino. Or with a homozygous bay (bay gene not black gene) will always give you a buckskin.
The chestnut has to be homozygous or it wouldnt be chestnut.
Punnet squares are not always square. The chestnut has 2 of the same genes which means it is homozygous, we know this because chestnut are always homozygous. S you can use 1 C to represent the mare. The stud has the chestnut gene and the dilute gene because it is a palomino so you need a C and a D if you put these in the column area of a graph paper and the mare's C in the first rom you can multiply them so you would end up with CC or CD so that is 50/50 for chestnut or palomino
I have once done a table about getting palomino ..
There are used only Chestnuts, palominos and cremellos.. The four "foals" are four parts, and then you can see how much possibility there should be for any color..