The geographical distribution atlas of male evolution of our country is drawn

The geographical distribution atlas of male evolution of our country is drawn
The geographical distribution atlas of male evolution of our country is drawn
It is reported ' Reporter Li TianShu) The research results of human molecular genetics support the mankind to go out of the African theory, but the route moved has disputes. A few days ago, the heredity of the Chinese Academy of Sciences and biological researcher of research institute of development succeeded in drawing out our country's male evolution geographical distribution atlas, support the hypothesis of south line. Find the direct evidence for the hypothesis of north line for the first time at the same time. This research has announced Chinese crowd makes up the complicated reason. It is reported, each of Y - chromosome form is carrying " hereditary signal " ,Each and mitochondrial SNP research of Y - chromosome form in the past showed, horbored to the modern mankind in East Asia, its ancestor enters Arabia after leaving Africa, enter Southeast Asia (including Yunnan of our country) along the coastline of the Indian Ocean ,Expanded to the northern hinterland gradually later, namely the crowd in East Asia migrated from the south to the south line hypothesis of the north. But meanwhile, the academia still stores in the hypothesis of north line, namely the prehistoric mankind enters the area of the east of the Mediterranean from north African, then enter Central Asia and Europe separately along things. But the hypothesis of south line can't explain the hereditary difference of the South and the North of the existing crowd in East Asia in an all-round way, the hypothesis of north line lacks the effective evidence. As to this, the heredity of Chinese Academy of Sciences and biological research institute of development develop the biological horse of research center moistens forest seminar's researchers, through each of high density Y - chromosome form,etc., 116 areas and North Korea amount to 3826 male DNA samples within the territory of measuring China, construct meticulous Y - the intersection of chromosome and the intersection of form and each, evolve atlas of geographical distribution. Ma RunLin introduces, studies have suggested, each for 4 main Y - chromosome forms existing in the crowd in East Asia accounts for and measures about 93% of number of people, this mean, pass Y - the intersection of chromosome and the intersection of form and times of groups of this " The genetic code " ,Every 100 Chinese philtrums, 93 people keep the same with hereditary signal height of the crowd of south line, studying the evidence supports the prehistoric crowd's hypothesis of the south line. At the same time, researchers find too in the people of East Asia, about 7% have hereditary signal of Central Asia and Europe, indicate not to contribute small the population composition of East Asia too in the north line. The crowd from north line has strengthened the hereditary difference of the southern and northern crowd in East Asia.


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