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    Home > Food News > Food Articles > Chinese scientists deciphered the entire genome of ancient wheat from about 3800 years old

    Chinese scientists deciphered the entire genome of ancient wheat from about 3800 years old

    • Last Update: 2021-02-22
    • Source: Internet
    • Author: User
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    News Agency, Changchun, June 1 (Reporter Zhang Jian) How wheat spread after entering China. Chinese scientists have recently made great progress in the field of ancient wheat research, successfully measuring and analyzing the first full genome sequence of wheat dating back about 3800 years, proving the close relationship between ancient wheat and the existing local varieties of ordinary wheat in southwest China, and proposing the diffusion route of ordinary wheat from the edge of the Qinghai-Tibet Plateau to the Yangtze River basin.
    is the first attempt at ancient wheat genome research, providing direct evidence across time dimensions for understanding cultural exchanges between East and West and agricultural transmission.
    Yinqiu, a professor at Jilin University's School of Life Sciences and Jilin University's Frontier Archaeological Research Center, said hexalycery wheat is one of the world's most important food crops. The domestication of ordinary wheat began about 10,000 years ago in the new moon of the Near East, and then spread westwards to Europe and eastwards to East Asia. However, the route of wheat into China remains unclear.
    To solve the mystery, the researchers overcame the difficulties of extremely low DNA content and severe degradation damage in ancient plants, successfully extracted their genome DNA from a single wheat seed from 3800 years old provided by the Xinjiang Antiquities and Archaeology Study, and used a new generation of sequencing technology to sequence and sequence the entire genome of seven ancient wheat seeds unearthed in xiaohe and ancient tombs in Xinjiang, China.
    Cui Yinqiu, genomic data analysis and morphological observations have proved that the wheat unearthed is hexaplate common wheat, and through systematic developmental analysis with RNA-seq (transcription group sequencing) data from modern hexaplate wheat varieties from China and around the world, the close relationship between ancient wheat and existing local wheat varieties in southwest China is proved.
    found that the allephic gene frequency of modern local varieties in the Qinghai-Tibet Plateau is similar to that of ancient wheat, which provides a more direct and powerful molecular basis for the southwest route of wheat transmission to the plateau. At the same time, the study also proposed the spread route of ordinary wheat from the edge of the Qinghai-Tibet Plateau to the Yangtze River basin.
    experts believe that the results of the study provide important information on the origin, diffusion and genetic improvement of existing wheat varieties grown in China.
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