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    Home > Food News > Food Articles > Chinese scientists "draw" the most genome-wide map of soybeans

    Chinese scientists "draw" the most genome-wide map of soybeans

    • Last Update: 2021-02-26
    • Source: Internet
    • Author: User
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    June 17, The Journal of Cell published online the latest advances in the soybean pan-genome by researcher Tian Zhixi, a researcher at the Institute of Genetics and Developmental Biology of the Chinese Academy of Sciences. The results break through the traditional linear genome storage form, the first time in the plant to achieve the construction of a graphical structure-based genome, will lead a new generation of genomics research ideas and methods, the reviewers called "the milestone work of genomics."
    , we found that there are large genetic variations between different soybean species resources, and that a single or minority genome does not represent all genetic variations in the soybean population. "Whether it's basic research or molecular design breeding, new genomic resources are needed that represent different soybean-based materials.
    Tian Zhixi team joint
    genetic development institute Liang Chengzhi and Zhu Baoge research team,
    molecular plant science innovation center of excellence Han Bin academician team, Shanghai Normal University Huang Xuehui team, etc., from the world's main soybean production The country's 2,898 soybean species materials were deeply resequenced and group structure analyzed, and 26 of the most representative soybean species materials were carefully selected, including 3 wild soybeans, 9 farm species and 14 modern cultivar varieties.
    Using the latest assembly strategy, the researchers assembled and accurately annotated 26 soybean-based materials from the beginning, carried out a systematic genome comparison, constructed a high-quality graphical-based structure pan-genome, and excavated a large number of large-scale structural variations that could not be identified by traditional genomes.
    analysis, the researchers found that these structural variations played an important role in the regulation of many important agro-features. For example, the structural variation of
    gene regulates the change of soybean skin brightness, and the structural variation of wild and cultivated soybean
    gene clusters is the main cause of domestication of skin color from black to yellow, and so on.
    materials selected by the Pan-Genomics Research Institute are not only representative of genetic diversity, but also have important breeding and production value. Tian Zhixi believes that the release of the pan-genome and related genetic variation of 2898 kinds of material provides an extremely important resource and platform for soybean research, and will vigorously promote soybean molecular design and breeding, and help realize the soybean "green revolution".
    it is understood that soybean domestication originated in China, and then spread widely around the world, providing mankind with major vegetable oils and protein resources, is an important food cash crop. However, compared with rice and wheat, the average yield of soybeans in the past 60 years has not been significantly higher than other staple crops. China's soybean demand is high, so it is urgent to strengthen soybean research and improve soybean production capacity.
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