Colour genetics - what might I end up with?

[HorseMaid]

This is purely a bit of fun, I have zero plans currently to put my mare in foal although I'd like to in the very distant future. An advert for a perlino stallion has popped up on my FB and it got me wondering what I'd likely end up with if I happened to choose such a horse to pair with my mare. My mare is Bay, her sire was palomino (Sameon Amber Eclipse). I have no idea about colour genetics but would love to know!

 

[I'm Dun]

https://www.animalgenetics.us/equine/ccalculator1.asp

 

[Roasted Chestnuts]

Well both my boys parents were bay, with the vast majority of both his parents line being bay, couple of chestnuts, blacks and a dun.

He’s flaxen chestnut ??‍

So I think sometimes is just chance, probably some degree of predictability but if I’d bred two bays with mostly bay and black in their lines I think I’d have said bay ?

 

[ester]

So you know from parentage that the mare is Ee (and then either AA or Aa)
you're guaranteed a cream dilute so buckskin (most likely) palo or smoky black but knowing the E status of the sire and the agouti status for both would narrow it down

 

[HorseMaid]

Thank you Ester. I've done some further research (boggles my brain!) and it seems that a cremello stallion could also end up producing a cream dilute, I guess she already carries a palomino gene?

 

[rabatsa]

Thank you Ester. I've done some further research (boggles my brain!) and it seems that a cremello stallion could also end up producing a cream dilute, I guess she already carries a palomino gene?

No. If she carried the palomino then she would be a dilute herself.

 

[Cloball]

So there isn't a palomino gene as such a palomino is a red/chestnut base (eeCrn) with a single cream gene, a cremello is a red base with two cream genes (eeCrCr) because cream is an incomplete dominant expression.

A cremello stallion will also produce a dilute foal as when the chromosomes divide you will always get a cream gene. A palomino will only produce a cream dilute foal 50% of the time because he only has one cream gene not two.

If you know the genes of each you can draw a punnet square and work out the possibilities in a simple way.

 

[Cloball]

Thank you Ester. I've done some further research (boggles my brain!) and it seems that a cremello stallion could also end up producing a cream dilute, I guess she already carries a palomino gene?

A buckskin still has the cream gene too but with a bay base (E_ACrn) and a perlino has two cream genes but also a bay base (E_A_CrCr).

 

[Cloball]

http://www.whitehorseproductions.com/equinecolor.html
This is quite a good website for getting started I find it all fascinating.

 

[Elf On A Shelf]

And this where having a long line of black shetlands comes into its own ???

 

[ester]

cremello/perlino and smoky black all have double cream so all will guaranteed a single cream gene offspring.

As others have stated there is no 'palomino' gene, that is cream. Cream doesn't affect black pigment so just with base colours/no other modifiers a black horse + cream just looks black. A chestnut + cream = palo and a bay + cream = buckskin.