I've noticed in paints, it seems to be difficult to find tobianos of wonderful quality..seems most fall into one or more overo patterns. I'm guessing because tobiano is easier to "skew the eye" into seeing faults due to how the color falls. So people don't breed them as much.
In the past, a tobiano was not as desired because of the tendency to have so much white. And you are correct, there were not as many of great quality, as there were of the overo patterned horses. Since many QHs carry some type of overo gene, although recessive and not expressed, the best quality paints began to emerge as "crop outs" from the best quality QH stock. As we have continued to breed, we have developed better and better quality. You will definitely now find some modern day tobianos that are fabulous as well. There are even a few very nice homozygous tobis, which is far more rare to find quality in. Even today, though, you will find that many breeders/exhibitors/judges prefer the minimal white overo in the show pen, to the loudly expressed overo or tobiano. This is even more true now that we are able to dbl register some paints as QHs.
I've noticed that friends of mine that are breeders really want those minimal overo marked foals to show. One got a dominant white foal (GQ Santana offspring)...and she was all white..she never got shown, but was a super nice filly. But she was "too white". LOL
Funny huh? I personally think that they are beautiful, although I wouldn't want to show one due to the way that they are treated in the show pen. It doesn't always happen, but enough that it's not worth taking the mostly white horse over the minimal white horse to the show. Show many of us breed for the dbl registered now, that we cringe when we see much white!
I understand the genes perfectly well. What irritates me is that people continue to lump them all under the term 'overo' when they are caused by different genes. They are on DIFFERENT alleles. Just because breed societies continue to use the term, does not mean that those of us that are educated about the differences should. We shouldn't lower ourselves to their level
Then UC Davis are still catering to the lowest common denominator. Sabino is more closely related to tobiano than to splash or frame. Frame is on a different locus, and the test for splash (as far as I know) is not available yet as they haven't found the Spl gene, they are just theorising that it is there.
From the amount of white hairs she has now as a yearling, she could be a light grey about the time she is 6 or 8 years old, or she could grey out slower, and may never actually get super light. I have seen late teenage grey tobiano horses that were really neat looking with a light to medium grey color pattern. Only time will tell :) Posted via Mobile Device