dog genetic testing

The Truth About Dog Genetic Testing

dog genetic testing

If you are a purebred dog aficionado, chances are you know what diseases to watch for as your dog ebbs and flows through life. For example, Cocker Spaniels are more prone to certain diseases, like IMHA (immune-mediated hemolytic anemia), than other breeds, so this is something this Cocker mom watches for and hopes never occurs.

What happens if you have a mixed breed dog? When a dog arrives at a shelter, shelter workers can only guess at what breeds comprise the dog. Sometimes a history is available at owner surrender time, but in other cases, dogs of uncertain heritage are frequently mislabeled.

Years ago, I interviewed the CFO of a doggie DNA company, at the time called Metamorphix. At the time, he told me, “Dogs may appear to look like a certain breed but genetically might be a much different animal. Sometimes owners try to break a dog of a certain habit and may not realize that trait was bred into him. Once owners find out their dog’s DNA and breed heritage, their lives change. We consider ourselves advocates for the dog.”

Woof? Bark? Huh?

“What an unusual bark!” Fido’s guardian was dumbfounded. After spending nearly $800 in veterinary bills and fearing throat cancer, dog genetic testing the rescue. With the simple swipe of a soft-bristled brush inside Fido’s cheek, the strangulated bark had a reason: Fido’s DNA revealed Basenji composition, a breed known for its unusually raspy sounding wail.

Beyond curiosity, DNA testing for breed identification extends into the healthcare spectrum. There is a strong correlation between certain ailments and disease with particular breeds. For example, Labrador Retrievers are prone to hip dysplasia and Collies are prone to blindness. Once breeds are revealed from DNA testing, veterinarians can institute preventative care from a health maintenance and preventative perspective. This goes way beyond curiosity of breed identification.

dog DNA
Actual dog DNA in artwork.

“CSI: Canine Sequencing Investigation”

Dr. Marta Castelhano, a research associate at the Cornell College of Veterinary Medicine in Ithaca, New York, told me how clinically valuable canine DNA is.

During a previous interview she shared, “We opened our DNA bank in 2006 because we saw the potential for disease identification based on our clients. With about 5500 animals enrolled in the DNA bank, we have listed for 155 diseases and are hoping to genetically map and find the gene(s) contributing to these diseases.”

Coupled with a grant from the National Institutes of Health (NIH), Cornell hopes that advancements in canine genetic diseases will complement their human counterparts. “We are also using healthy Labrador Retrievers to provide a control group for gene discovery of various diseases. The DNA from these healthy dogs will help improve the quality of life for future generations of Labradors. After this study, we’ll move on to another breed,” Castelhano disclosed.

Can We Cure Cancer?

With all of this canine DNA, just who is helping to cure canine cancer? The Morris Animal Foundation’s Canine Cancer Campaign ran from 2007 to 2012. This was an awareness and fundraising initiative to give scientists genetic tools to study cancer, to help researchers test treatments and determine ways to prevent cancer, and to train new canine cancer researchers.

Thanks to the support of dog lovers throughout the country, Morris Animal Foundation provided more than $5 million in funds for more than 45 canine cancer studies during the five-year period. Many of these studies are still under way and already completed studies have helped create inroads for dogs to beat this disease.


All-American Mutts

Mixed breed guardians rejoice with your purebred counterparts! The AKC decided that in April of 2010, it would allow mixed breeds to compete in its existing agility, obedience and rally events. Canine Heritage is the company testing the mixed breed background of these dogs. Animals can look the same and be genetically completely different. Similarly, dogs that look dissimilar may have the same genetic composition. It’s not as black and white as people might think.

I was front and center for history in the making in 2014 when the mutts took front and center at the Westminster Kennel Club Agility competition.

“We are so excited to welcome these dogs for the first time ever to Westminster Kennel Club,” Director of Communications and “Voice of Westminster,” David Frei told me during a backstage interview.

In the end, two dogs were awarded: A Border Collie named Kelso rocketed to a win in the Westminster Kennel Club’s new agility competition Saturday night while a Husky mix named Roo! took the title given to mixed breed dogs at the show. You can read our full report on the Agility Championship here.

Guess What?

What a Christmas present to a dear friend, several years ago I gifted her with a doggie DNA test kit. Her dog was a “drug bust” dog in that she was confiscated when authorities raided a drug house. My friend was fortunate to adopt Zola from the shelter.

Can you guess any of the four breeds that comprise this cutie’s DNA? Results revealed at the end of the article.


cute dog

DNA Matters

Beyond breed identification, scientists around the world are studying mutations responsible for inherited diseases in several breeds of dogs. When mutations are identified, responsible dog breeders would avoid breeding dogs to prevent future generations of the breed from being affected.

So yes, DNA matters, testing counts, and the sooner we can identify mutations of disease, the better off our canines are in the long run.

For those playing along, scroll down to see what four breeds comprise the DNA that is Zola:




Main: Rottweiler

Secondary: Labrador Retriever, Chow, and Akita.

Amazing, right? No German Shepherd. And she is the sweetest little girl.

Would you/have you ever had your dog’s DNA tested?

medicine versus mom

In an effort to bring our readers the most up-to-date health and wellness information for dogs, this installment of Medicine vs. Mom includes the always fabulous, Rachel Sheppard of My Kid Has Paws blog with her side of the story on this hot topic. A former vet tech, check our Rachel’s take on dog DNA genetic testing here.



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  1. Soooo interesting! We got a sibling pair from the local shelter, and since they were a raid on a house with a billion dogs we arent’ really sure what they are! They are listed as beagle and mini pincher, because the puppies were nursing off a Beagle mama. BUT they look soooooo much like dachshund. I would soooo do a DNA test!

  2. That swipe for DNA is great! I didn’t even know that could be done. The Morris Animal Foundation should be applauded too, that’s a great deal of money they’ve raised for support, and big kudos to them for it.

  3. Mom so wants to have me tested but dad is way against it! We know I am mostly Dachshund but how much not sure and what the other breed its. Truthfully, she doesn’t want to find out that I am part Beagle, a dog she isn’t fond of, but my nose kind of gives it away! Love Dolly

  4. Wow, this was super interesting!!
    ღ husky hugz ღ frum our pack at Love is being owned by a husky!

  5. Aweeee those faces are so adorable. This is so interesting and awesome if it helps pet lovers take better care of our fur babies. LOVE the artwork made out of real dog DNA!

  6. I never knew there was generic testing for Dogs. I’m sure this will be great to help with diseases like cancer for the Dogs. This was a very informative post

  7. Dog DA testing sounds fun. This is a good way to find out a dog’s breed, usually people are very interested in knowing. I would have never guessed rotti in Zola.

  8. It’s great that they are able to do so much with collected DNA. I hope as more genetic info becomes available, it will be easier to stop diseases.

  9. I had no idea that dog DNA could be so convoluted. It makes total sense when you think of it in human terms though! We have a purebred St Bernard…and he has all of the typical traits. lol…but, you never know…I’d be curious about his DNA swab!

  10. I would have never thought of getting our dogs genetic testing but it makes a lot of sense. If we can have our fur babies with us longer than that would be awesome.

  11. You could have fooled me that your dog had no German Shepherd in her! She has all the markings of one! She is cute either way!

  12. I can’t say for sure that both my dogs are purebreds, but I love them both no matter what! I love the DNA artwork though! That’s awesome!

  13. And if they can cure canine cancer, who knows what else they might be able to do? What a great organization.

    1. I know, right? I am thinking of getting our friend the updated one on the market now and see what results it merits.

  14. Great article, Carol! I’ve thought about doing DNA testing for both Sophie and, now, Jasper. What I found amazing is that Zola has what she has in her. I never, ever would’ve guessed. Maybe Jasper doesn’t have terrier DNA, even though he looks just like one, and Sophie has more hound in her than she looks!

  15. I did this with my purebred rescued German Shepherd – he came back full shepherd. I also have a number of clients who DNA test just to see what their pups have in them 🙂

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