Even if this is proven to be true...to breed a positive to a negative still gives that small chance for the gene to be passed on to the other generation. This is true of other genetic mutations such as HYPP, so I would think it possible with dwarfism.So once we know the genetics, as long as we breed a horse we know is positive for it to a horse we know is negative for it, wouldn't that solve the problem of no longer producing dwarfs?
The way I see it, two positives give a 50% chance of a dwarf foal, but a positive bred to a negative would still have a 25% chance of passing the gene on. Even if that resultant foal is tested, (and they all should be if a positive parent is involved) and people know it too is a carrier...how can we erradicate this gene if we continue to breed it at all?
Oh I see now. Thanks for that information Sue. I thought the only way you get a dwarf is by BOTH parents having the gene. I didn't realize there was still a chance if only one had the gene. And I never thought about it being passed on to the foal. Makes sense.