Tuesday, January 19, 2016

From the birthplace of dog chromosome analysis instead of Europe or China

  As we all know, after the domestication of dogs from wolves in human beings a species that evolved slowly. However always ask is: where was the world's first dog domesticated? On this question, experts have argued dozens of even hundreds of years. Compared with the mainstream of the two statements is: the dog is born in Europe or China. However, the latest research has shown that, in fact, these two places are not.

From the birthplace of dog chromosome analysis instead of Europe or China

  The answer is wrong? Maybe to you it is hard to imagine, is a sparsely populated region of Central Asia. The traditional point of view, is 5 Stan in Central Asia (Tajikistan, Kazakhstan, Kyrgyzstan, Uzbekistan and Turkmenistan) and Afghanistan parts of the composition. From a historical perspective, influence in the region is clearly far worse than China, Europe and India, civilized area in the traditional sense, however, does not mean it is impossible.

From the birthplace of dog chromosome analysis instead of Europe or China

  From the Cornell University team created a gene called linkage disequilibrium features, by 38 countries and 161 species of 4,676 purebred dogs for sample analysis. By using mitochondrial DNA and chromosomes to form a database of more than 180,000 of the dog genome-wide, through the data collected in the past, they found that: the oldest and primary genome have dogs, basically from Central Asia.

  Also, they found that the oldest of the true meaning of dog chromosomes produces about 16,000 years ago, at the time, humans are still in the early stages of civilization is basically have no fixed residence, often with changes in the environment and migration. Is in this migration, the dogs as hunting assistants will be gradually brought to Europe and China, and as the environment changed and evolved in different species.

From the birthplace of dog chromosome analysis instead of Europe or China

  For the time being, the credibility of this statement is quite high, because the evolution of wolves in the Central Asian region is very much into dogs, temperate steppe climate is very suitable for the survival of this species. Human ancestors arrived in Central Asia during the migration process, some people continue to migrate, part of the permanent settlement in the area, this is a very reasonable thing. Paul Frank iPad Air 2 Case Paul Frank iPad Air 2 Case

From the birthplace of dog chromosome analysis instead of Europe or China

  Of course, this may not be supported by all scholars, after all, academic research, the experts are usually against a.

[Article correction]

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Tags: Science and technology And anecdotes

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