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Surprising DNA results!

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    Surprising DNA results!

    I decided to DNA test my older dog too, when I sent in the kit for my new puppy ( who is German shepherd/hound/pit bull/lab). I had always thought she had to have at least 4 different breeds, and that one of them was pit bull (seemed like less than 50%). She is 9 years old and 45 pounds and has fairly short hair which has greyed a lot. It turns out she has big, hairy dogs on one side of the family (golden x great pyrenees), and a major mistake on the other side (rottweiler x Boston Terrier), but her biggest percentage is boxer. I can see the influence of the boxer and boston terrier in her shorter than average snout, but I don't really see any strong characteristics of any of these breeds, and after assuming some pit bull for 8 years, it's hard to unsee! The boxer influence does explain her tendency to grow lumps, though


    Edit: In case the pictures are hard to see, she's 30.4% boxer, 25% golden retriever, 19.1% great pyrenees, 11.8% Boston terrier, 7.8% rottweiler, and 5.9% supermutt, which may include trace amounts of dogo argentino or American bulldog. Click image for larger version

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    #2
    I see the boxer, but you have to look for it!

    Comment


      #3
      The chances that there was ever a Rottweiler x Boston Terrier cross is quite slim. I think most of these results are best guesses and probably both sides were mixes to begin with.

      I don't really know how they are designed to work, but I cannot believe there is a "DNA profile" of my breed that is known to be accurate, because I have to believe that registries and parent clubs would use it for breed verification if there was.

      They are interesting, but probably not really breed x breed lineage in the sense that "mom was a Golden, dad was a Pyr." That's just highly unlikely. More like mom was part golden and so was dad. (Not surprising, since they are very popular). And there is some Pyr thrown into the mix.

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        Original Poster

        #4
        Originally posted by S1969 View Post
        The chances that there was ever a Rottweiler x Boston Terrier cross is quite slim. I think most of these results are best guesses and probably both sides were mixes to begin with.

        I don't really know how they are designed to work, but I cannot believe there is a "DNA profile" of my breed that is known to be accurate, because I have to believe that registries and parent clubs would use it for breed verification if there was.

        They are interesting, but probably not really breed x breed lineage in the sense that "mom was a Golden, dad was a Pyr." That's just highly unlikely. More like mom was part golden and so was dad. (Not surprising, since they are very popular). And there is some Pyr thrown into the mix.
        I agree that the parental lineage part is probably a best guess, but apparently the DNA types have gotten much more accurate now. That's why I never tested her before. In the section that shows you "relatives" all of this dog's "Close Family As related as human half-siblings, aunts/uncles, and grandparents" are purebred boxers, sharing 22% of her DNA. At least two of them have profile pictures showing them as show dogs. I'm not sure why you'd test a dog registered as a purebred, but maybe the company offered free tests to help build their DNA type libraries.

        My other dog found a full sibling sharing 47% of DNA. I messaged them based on the town they got the pup and the age, and confirmed it's another puppy from the same litter. Their puppy and mine had slightly different guesses at parental lineage, because theirs had 10% ACD and 5% Am. Staff, and mine didn't. They both had German shepherd, coonhound, bloodhound, pit bull and lab. Mine had about 9% "supermutt" and theirs had the ACD and Am Staff instead. I would think the DNA companies would use sibling data to help fine tune their findings, but who knows. This was with Embark, which seems widely known as having the most accurate results of the DNA tests out there. All of her other "close family" matches were pure German Shepherds.

        Comment


          #5
          Mango you have 2 All American dogs with all those breeds. you'd be surprised at all the owners of supposed purebred GSDs
          that have them tested just because they're not sure that's what they bought. I guess they just want to be sure they got their money's worth.
          my understanding is not all siblings get the same genes when it comes to mixes. just like in humans some of us have more of our grandparents genes than our siblings did.
          Your older gal is very cute w/ her silver whiskers.
          "There is no fundamental difference between man and animals in their ability to feel pleasure and pain, happiness, and misery." - Charles Darwin

          Comment


            #6
            Those tests are entertainment, as there is no DNA test that can accurately determine dog breeds. Cute dog, most likely a Lab mix.
            "Argue for your limitations and you get to keep them."
            -Richard S. Bach

            Comment


              #7
              He’s very square and that flat broad chest rings a bell, but I can’t put a finger on it.
              Those toes though, they’re pretty distinctive. Those look boxer to me.
              Not that I’m an expert.

              Comment


                #8
                So: the Entertainment Test, told me that my girl is: 25% Shepherd, 1/8 each - boxer, chow, staffordshire terrier and retriever. 25% OTHER. Click image for larger version

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                  #9
                  And the little bug is pretty clear: 26 lbs of dachshund and some herding dog Click image for larger version

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                    #10
                    While a money maker for the ones selling the tests I find no validity in the results, but look more to them as a way to entertain the one who is waiting for results.

                    Kind of like the human ones. Mom got one for Christmas and well the results were entertaining, but highly inaccurate!

                    Comment


                      #11
                      There is valid science behind at least the Embark tests. Embark is affiliated with of Cornell University Veterinary School.
                      Besides your own dog DNA they also match up unknown siblings from the same litter. That's been interesting. My dog has a fairly close relative that was born in Hungary and is now a police/security dog in the Phillipines.

                      Also DNA tests have allowed Law Enforcement to trace relatives and find murderers. Like the Golden State Killer. Took 30 some years but that's how they caught him through one of the Ancestor.Com sites.
                      "There is no fundamental difference between man and animals in their ability to feel pleasure and pain, happiness, and misery." - Charles Darwin

                      Comment


                        #12
                        Originally posted by Marla 100 View Post
                        There is valid science behind at least the Embark tests. Embark is affiliated with of Cornell University Veterinary School.
                        Besides your own dog DNA they also match up unknown siblings from the same litter. That's been interesting. My dog has a fairly close relative that was born in Hungary and is now a police/security dog in the Phillipines.

                        Also DNA tests have allowed Law Enforcement to trace relatives and find murderers. Like the Golden State Killer. Took 30 some years but that's how they caught him through one of the Ancestor.Com sites.
                        I tried to find how they were identifying DNA for each breed and it does not say on their website.

                        Since every breed was originally a mixture of many breeds, I'm not sure how they are doing it. Also, I would think that they would work (for example) with parent clubs to possibly obtain several versions of long-known purebred breeding lines - but am positive this did not happen in my parent club. So, how would they obtain the purebred sample by which they are comparing others to?

                        I do believe it is possible to find siblings; that's another issue entirely. AKC has a database of DNA for proof of parentage. All of my dogs are in it. But I'm not sure how they identify each breed genetically.

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