Original sentence: As ASD is found in non-silver representatives of the breed, it is thought to be physically close to the silver gene and to have come from a silver dapple, ASD-affected founder
Edited sentence: As ASD is found in non-silver representatives of the breed, it is thought to be physically close to the silver gene and to have come from a silver dapple, ASD-affected foundation ancestor, thus is an example of the Founder effect