Because the current test is a marker test and not a direct gene test, I don't know how useful the test would be. This is a question you would have to ask directly to the researchers.
@dmcarty:
re: puppy mills and testing only one parent - I know for a FACT that at one place the sire of several years of litters was not the sire - it was a male who had good papers so his name was listed even though he was DEAD. One of the PM's males was the sire of several litters attributed to this OTHER dog. (I happen to know the person who owned the substitute sire)
So it is unfortunate but the testing will only be as ethical as those who provide information to the test.
Geez I hate to even say that but I am afraid that it's true.
No doubt about that… and another reason to only look at AKC who has a DNA parentage program for high volume breeders...