The world of dog is not alien powers to DNA. He has also used its "services" for many years. And this, in two major areas of application: the detection of genetic diseases on the one hand, and the parentage of the other.
350 genetic diseases in dogs
There are about 350 dogs hereditary defects (against 5,000 in humans). Research – three laboratories in France working in the field of canine genetics – allowed for certain defects develop markers. These help to identify a male or a female for breeding (and competing standard) is free or affected by a particular pathology.
The status of the parents tested "negative" may be affixed to the pedigree, official document of the dogs.
Through these tests, the breeder who performs thorough job selection may evict reproductive individuals carrying. Some dogs may be healthy carriers, that is to say, be affected by a disease without showing symptoms, however, while being able to pass it. The tests may be required by a breed club within its rating scale, a sort of "ranking" of the best subjects.
A guarantee for the future master
However, there is still no test for all diseases, but susceptible breeds are available in which they can expect to see and decrease the spread of genetic diseases in their livestock.
The usefulness of such tests, when available, also benefits the future master. In its efforts to acquire a puppy, it can ensure that parents are free, which is an additional safeguard to avoid having to deal with a puppy who in turn will present a pathology. Genetic diseases, like all those reported before the purchase of an insurance animal health within the scope of exclusions of reimbursement, it is therefore a significant caution.
The DNA also allows traceability of pups in a litter. Thus, one can know with certainty that they are from the cross of like father and mother like her.
This is the official club of the breed English bulldog in this area which was the forerunner in introducing a DNA test to determine parentage in 1998. SCC (Societe Centrale Canine) which manages the LOF (Book of French origin) in France while an estimated three pedigree had at least one false statement. "It was a success in terms of ranchers who wanted to stand out from the merchants of dogs," says Helene Denis, president of the club's English bulldog. "To date we have over 1,000 bulldogs identified which quarter with controlled descent for both parents," she says.
The last important point, and not least, among the genes identified in dogs, several are directly relevant to humans. Some studies conducted in canine genetics can be transposed in human medicine and help advance research.
Proof once again that the dog outside of his abilities for the company and its role at times of carer, may hold promise of hope in our health.
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