Chinese Academy of Sciences, Yunnan University Cell published a paper: Unlocking the genetic map and adaptive genetic evolution of East Asian populations in the Ice Age

Speaking of the Ice Age tens of thousands of years ago, we immediately think of the ancient human images in the animated film series "Ice Age" and the cartoon images of extinct animals such as mammoths and saber-toothed tigers that coexisted with them at that time

May 27, 2021, Fu Qiaomei's team from Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences and Zhang Hucai Research Group of Yunnan University (The first author is associate researcher Mao Xiaowei, Institute of Paleospine, Chinese Academy of Sciences, and the corresponding author is Fu Qiaomei, Institute of Paleospine, Chinese Academy of Sciences Researcher and Professor Zhang Hucai of Yunnan University) jointly published an article entitled "The deep population history of northern East Asia from the Late Pleistocene to the Holocene" in Cell magazine

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The research used the most cutting-edge ancient genome experimental technology to obtain the ancient genome data of 25 early human samples from 33000-3400 years ago in Heilongjiang Province in Northeast China (11 of which are more than 10,000 years old, Figure 1), covering the entire The last glacial maximum filled the relevant time gap in the genetic history of the populations of northern East Asia

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The study pointed out that the genetic composition of the AR33K individuals living before the last glacial maximum and about 33,000 years ago is similar to that of the Tianyuandong people 40,000 years ago

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In order to further explore how climate change during the Last Glacial Maximum affects the populations of northern East Asia, this study conducted an analysis of the ancient genomes of AR19K individuals who lived at the end of the Last Glacial Maximum 19,000 years ago

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　　After the last ice age, what was the flow of people in northern East Asia? This study obtained 16 individual genome data from Heilongjiang after the last glacial maximum (about 14,000 to 9,000 years ago), and found that the genetic continuity of the population in the Heilongjiang River Basin may have begun as early as 14,000 years ago, which is higher than the previous hypothesis.

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　　The study also explored the adaptive genetic variation of the populations of northern East Asia

　　With the continuous advancement of ancient genome technology and genetic analysis methods, and the vigorous development of multilateral and interdisciplinary cooperation between domestic professional teams and archaeological institutions, ancient genome research for East Asian populations has ushered in a moment of rapid development