Originally Posted by trailhorserider
So can a horse ever express frame phenotypically and NOT be a carrier for lethal white (assuming it is not a mistaken identity on the color pattern)?
Okay, so the above is really a "no" (unless it's mistaken identity).
The lady I was discussing this with is actually a breeder of Paint horses, and she was fantasizing about breeding a mare of hers (that to me) looks obviously frame to the stallion I originally linked, and when I asked if she was worried about lethal white she just sort of paused and said she's sure the stallion has been tested and she can always test her mare.
I guess I am kind of afraid I have a better understanding of lethal white than she does.
I think she's been safe so far because her stallion is tobiano. But several of her mares look frame (to me). Hopefully if she breeds to an outside stallion the breeder will inform her of the risk. That would be the responsible thing to do.