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Modern dog breeds genetically not associated with the ancestors

An international team of scientists analyzed genetic data of modern dogs based on the assessment of the remains found all over the world, and found that modern breeds genetically have little in common with their ancestors.

Dogs were the first domesticated animals and the researchers say that their findings eventually lead to the understanding of the origin of dogs and the development of early human civilizations.

Despite the fact that many modern breeds have a form similar to the form of dogs depicted in ancient books or the Egyptian pyramids, mixed breeding, which lasted thousands of years, suggests that it is wrong to call any of the modern breeds “ancient”, the researchers said.

The study showed that because of mixed breeding such breeds as the Akita inu, Afghan hound and Chinese Shar-Pei, called “ancient”, not closer to the first domesticated dogs than any other dog breeds.

Other effects, affecting the genetic diversity of domestic dogs include the footprint of human actions and strong influence on the size of the dog population events such as two World Wars, the researchers added.

The findings were published may 21 in newchemical “the activities of the National Academy of Sciences of the United States” (“PNAS”). Led by a team from Durham University study was conducted by scientists from several universities, including Uppsala University, the Swedish University and the University broad in the United States.

In total, studies have analyzed genetic data 1375 dogs of 35 different breeds. Also examined genetic samples of wolves, as well as recent genetic studies suggesting that dogs are descended exclusively from the gray wolf.

Leading author, Dr. Greger Larson, evolutionary biologist in the Department of Archaeology of Durham University, says that the study shows that there is still much we do not know about the early history of dog domestication including where, when it happened and how long it took.

Dr. Larson Added, “We really love our dogs and they accompanied us on every continent”. “Ironically, the ubiquity of distribution of dogs combined with their ancient history makes obscure their origin and makes the way for us to know how dogs became man’s best friend.

All dogs have been through so a considerable amount of krovososy that we could not still trace their roots.”

Some breeds, including Basenji, Salyukov and Dingo, have different genetic traits that were identified in previous research, the undoubted inheritance of the ancestors.

Be that as it may, the study showed that unique traits transmitted genetically, these dogs have nothing to do with the heritage handed down to them by ancient dogs. Instead, these breeds have genetic differences because they were genetically isolated and was in the Victorian kennel Club 19th century that engaged in breeding of dogs of those breeds that today are our Pets.

The study also suggested that during the domestication of dogs, which lasted for 15,000 years, dogs have been kept as Pets only 2,000 years ago, and before that the majority of dogs used for executing various works.

Dr. Larson said, “And behavior, and the appearance of modern breeds would be very surprising to our ancestors who lived just a few hundred years ago. And therefore the study of modern breeds are not yet allowed us to understand how, where and when dogs and humans started their relationship.”

The researchers added that DNA technology is faster and cheaper than other methods of research, and may soon lead to further discoveries concerning the domestication and evolution of dogs.”

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