Although one gene with simple recessive transmission has been identified, other genes affecting penetrance and expression the gene could be identified.
My EIC tested "affected" bitch does not collapse. She was bred to a tested "carrier" before any testing was done. They did produce one offspring that does
collapse so far. I don't know why she doesn't collapse herself. Maybe there is another factor, but
I don't care to take a chance.
Since I ask which test you all use just want to be clear, this Ann is not me. I have not tested up until now, but that is why we are testing. Want to know where we stand going forward. It has been a very eye opening adventure. Have learned right much and still learning. Thanks for others input. Thanks to the stud owner who put it out there. Testing my girls so I can go to carriers if I wish without fear.