RetrieverTraining.Net - the RTF banner

New dog DNA test to determine breed

1440 Views 9 Replies 9 Participants Last post by  subroc
Our local news has had several stories on a Maryland company that has developed a new canine heritage DNA test that can determine breed composition of mutts. The company, MetaMorphix (also developed the pedigree DNA test AKC uses), says it can identify 38 different breeds from a cheek swab. The test will be available to the public in about a month, according to the press information.

Hmmm....wonder if silver Lab breeders are quaking in their boots?
1 - 1 of 10 Posts
subroc said:
If the test shows 6, 8 or 10 generations back a dog with 25% something else was bred into your line are you going to contact AKC and have your registration rescinded? Would anyone contact everyone they sold a pup to and return their money?
It doesn't work like that. Dogs have 78 chromosomes, getting 39 from each parent. At the sixth generation, they inherit _on_average_ 1/64 of the genetic makeup from each ancestor, or _on_average_ about one chromosome. Because of the way chromosomes are reshuffled in breeding, though, farther back than the parents there is no way of knowing how much, if anything, a given individual contributed to your dog. In principle it is possible for a grandparent (2nd generation) to have contributed nothing. It is *probable* that one or more dogs in the sixth generation contributed nothing.

There are also spontaneous mutations. I know someone who had a mismatch at one locus on the DNA profile of a puppy she bred. The other 9 1/2 matched, and the AKC or whoever was responsible certified parentage on the puppy. She contacted them and they said they inferred the mismatch was the result of a mutation.

Amy Dahl
See less See more
1 - 1 of 10 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.