Thanks for that.. interesting that no one else in the Basenji Fancy is aware of this… ... sorry, but unless this is linked to the breed, I would wonder as the U of Mo that did all the Fanconi tested to get to the direct gene is the one that have been getting DNA samples from PRA dogs and/or offspring/families
Drs Acland and Aguirre have been collecting DNA samples from PRA dogs and their families since the 1980's. Everett and Karen Pashley did test breedings for them in the 1980's and 1990's, and Everett wrote many articles on it.
In the 1990's and 2000's, I worked with breeders with a variety of bloodlines to help put together related clusters. This effort included having the Drs A speak, arranging clinics for eye exams and and blood collection, and driving dogs up to Kennett Square, where Dr Acland also works. Dr Acland spoke at the 1996 National, and had a large and well attended eye clinic there where they took blood samples. We have had organized attendance at their other eye clinics, not just at Nationals, and they've taken DNA samples there. I wrote several articles for it and for a while we had a special PRA committee dedicated to raising funds and collecting samples. If you remember the Basenji PRA pins that Damara Bolte created, that was part of that effort.
In the late 90's or early 2000's, Betty White, Toni Ackerman, I think Carolyn Rollins, and I drove a large number of dogs - not our own dogs, but dogs related to specific dogs the researchers were interested in - up to PA. That trip was sort of a Basenji PRA express, with dogs collected from pet owners and breeders across a fairly wide area, picked up, driven to Kennett Square, examined and sampled, and then dropped back off.
Several breeders have been working with them steadily for many years. The Drs A have collected samples of any dog of interest.
I would guess they have the largest collection of Basenji PRA DNA samples in the world. Things have been quiet for a long while, but they certainly have the sample set to do impressive research.
Parenthetically, the doctor speaking at Nationals is Acland, not Aguirre.