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DNA test Hayzel en Kiara

Een forum voor algemene onderwerpen over honden en vragen over honden.

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KKiara
Zeer actief
Berichten: 731
Lid geworden op: 29 mar 2005 16:16
Mijn ras(sen): Welsh Corgi Cardigan en 2 kruisingen
Aantal honden: 3

DNA test Hayzel en Kiara

Ongelezen bericht door KKiara »

Ondanks dat ik weet dat het met een korreltje zout genomen moet worden heb ik een DNA test van Hayzel en Kiara laten doen.
Puur uit nieuwsgierigheid en omdat ik het leuk vind. Omdat wij zelf verwachtte dat er in Hayzel Garafiano zou zitten (ivm plaats van herkomst en uiterlijke kenmerken die ze heeft), hadden we nog wat vragen gemaild nadat we de uitslag van Hayzel hadden gekregen. Als extra service hebben ze toen nog hertest met Zuid Europse profielen. Hieronder is alles te vinden, misschien dat iemand nog leuke op of aanmerkingen heeft mbt tot genetica?

Kiara (hond links in onderschrift)

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Hayzel (hond rechts in onderschrift)

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Gebruikersavatar
KKiara
Zeer actief
Berichten: 731
Lid geworden op: 29 mar 2005 16:16
Mijn ras(sen): Welsh Corgi Cardigan en 2 kruisingen
Aantal honden: 3

Re: DNA test Hayzel en Kiara

Ongelezen bericht door KKiara »

Hier ook nog een foto van de vader en moeder van Kiara

Vader
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Moeder
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En de uitleg van het lab waar de tests gedaan worden met betrekking tot de uitslag van Hayzel

Dear Pauline,

Thank you for contacting Mars Veterinary, the creators of Wisdom Panel® DNA tests, the best-in-class test for breed identification in dogs. All breed determinations are made solely by our proprietary computer algorithm. With each tested dog’s DNA, more than 7 million repetitive comparisons are made using a complex statistical algorithm. The algorithm scans the 321 genetic markers collected and looks for matches to breed signatures, providing a marker by marker certainty score for each breed match. The computer then selects the single best combination of breeds and relative amounts of breeds detected that best match the tested DNA sample from the comparison against our extensive database of purebred dog breed signatures. The Wisdom Panel® test’s breed signatures are defined by markers that are consistent with the presence of the breed, but not necessarily markers associated with physical appearance. Therefore, a mixed-breed dog could be a combination of three or four breeds but have few traits that are visible from one or more of the called breeds.

When evaluating Hayzel’s results, we see that the quality of her sample was good and that it yielded a very good genetic signature that found she had a grandparent Rottweiler and German Shepherd with a trace great grandparent German Shepherd. The rest of her ancestors are a mix of mixes. When we run her sample against the panel that includes additional sighthound breeds (several popular in Spain), we see that the results are the same and no additional breeds are detected with confidence. As we do not test for the Garafiano, we cannot speak to this breed’s presence or absence in Hayzel’s ancestry.

From the pictures provided we can see that Hayzel exhibits a short coat which is a dominant trait meaning she only needed to inherit a single copy of each gene from any of her ancestors to express it. Both of the called breeds are short coated. From the picture, it appears that she has upright (prick) ears though as she is running in the picture, we cannot rule out that motion is causing them to appear prick eared. This is a recessive trait meaning she had to inherit this from both sides of her tree to express the prick ears. As we see German Shepherd on both sides of her tree, it is not surprising that she is prick-eared. Similarly, her yellow coat is recessive but both the Rottie and German Shepherd carry yellow though she does not exhibit a saddle or black and tan pattern. As these are both recessive, it is not surprising given the random nature in which genes get passed down.

The overall shape and size of the ears, their position on the head, as well as the overall facial structures such as muzzle length and brow width are an average of the various breeds’ influences working together towards the average. Thus, it is not surprising that she exhibits a slightly larger than average ear size with an moderately elongated muzzle and intermediate brow width. Size is determined by a variety of environmental factors that influence adult size. Early life nutrition, dam’s nutritional status during gestation, as well as early life challenges such as parasitism and illness will impact the growth of a puppy. Genetics also impact adult size and a gene that is thought to be a major contributor to adult size is located on chromosome 15. In Hayzel’s case, the Rottweiler and German Shepherd both appear to likely each have contributed a copy of IGF1.

Thus, as you can see, Hayzel is the unique result of the various genes received from her varied pure and mixed ancestors. I hope that I have been able to shed light on your question and answer your inquiry. If you have any additional questions, please do not hesitate to contact me.
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