What do you think we'll get? Just bred a solid sorrel paint mare (both parents were sorrel, sire was a paint) to our bay stallion. His sire was a bay and dam was grey. He has thrown all colors. This is our first time breeding the mare, so we have no idea what she throws. Any guesses?
Life is hard. After all, it kills you. - K. Hepburn
We have a TB tobiano yearling filly I am excited about....have yet to break the news to Sharon White who rides for us though...despite her predilection for orange, her idea of wild color in horses is gray....
p.s. This is a GREAT conversation to have today because I just saw on Google that it is the birthday of Gregor Mendel - father of genetics!
I find the whole color thing very interesting. Last year we bred a black mare to a black stallion and was blessed with a liver chestnut filly LOADED with bling (full blaze, 4 full stockings). Bred the same black mare to a chestnut stallion and had a black filly this year. Go figure!
I too have gone to the U C Davis website for a better understanding but the whole color genetics thing is beyond me. Just glad that they're healthy!
Bred the same black mare to a chestnut stallion and had a black filly this year. Go figure!
I had a homozygous black stallion and a homozygous black mare so there was no possibility of a 'red' gene in either. I have found in breeding the homozygous blacks (just my personal experience and not a huge number statistically) that my best chance for a black foal was when I bred homozygous black to chestnut ... obviously no chance for chestnut but it also seems there is less chance for bay.
In your case, both mare and stallion in the first breeding have to carry a red gene since the filly was chestnut so although the second stallion was chestnut, the mare simply didn't pass on her chestnut gene in the second breeding (50/50 odds on that).
Chestnuts can hide Agouti (gene that turns black to bay) and may have 0, 1, or 2 copies. Obviously black x black won't produce bay, but HZ black x black will always give black
The law of averages says most chestnuts are probably Aa in their Agouti status, but obviously can be AA or aa. HZ black x that aa chestnut will always be black. X the Aa chestnut is a 50/50 shot. X that AA chestnut is always bay.
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Yep....my perlino QH stallion is HZ black/agouti/cream. Try explaining THAT to someone standing there looking at a pale cream colored horse with blue eyes! Yeeaaaahhhh...uh hu.....sure LOOKS like he has two black genes!
I was interested, when doing research on what to expect the year we bred our Haflinger mare to a chestnut and then again this year when we bred her to a black stallion, to find that Haflingers are not true Palominos but are, rather, light or flaxen Chestnuts. Pic of Mom and 1st baby. She is bred to a heterozygous black stallion for next year.....