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    Home > Biochemistry News > Biotechnology News > My scientists proposed a new route for rapid domestication of four-fold wild rice

    My scientists proposed a new route for rapid domestication of four-fold wild rice

    • Last Update: 2021-02-10
    • Source: Internet
    • Author: User
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    "Although China has made brilliant achievements in rice breeding, there is still an urgent need for new strategies to meet future food challenges.
    ," said Li Jiayang, a member of the Chinese Academy of Sciences and a researcher at the Institute of Seed Innovation/Genetics and Developmental Biology of the Chinese Academy of Sciences.
    the current cultivation of rice is a double wild rice after thousands of years of artificial domestication, the domestication process in improving important agro-artistic character at the same time also caused a large loss of genetic diversity.
    in addition to the medesic cultivation of rice, there are 25 other wild plants in the genus, which can be divided into 11 categories according to genomic characteristics, including 6 types of double genomes and 5 types of fouroid genomes.
    , heterogenous four-fold wild rice has the characteristics of large biomass, the advantages of hybrids and strong environmental adaptability, but it also has the characteristics of non-domestication and can not carry out agricultural production.
    to overcome the problem of cultivating new crops of polypic rice, researchers have for the first time proposed a new route for rapid domestication of heterogeneic four-fold wild rice from the head.
    " We first collect and screen out the best comprehensive heterogeneum wild rice chassis quality resources, and then establish a rapid head-to-head domestication technology system of wild rice, and then carry out molecular design and rapid domestication of varieties, the future will promote the promotion and application of new rice crops.
    co-author of the paper and an associate researcher at the Institute of Seed Innovation/Genetics and Developmental Biology of the Chinese Academy of Sciences, explained.
    In accordance with this technical route, the researchers realized material collection, overcome the technical bottleneck, successfully created a variety of genome editing heterogeneous four-fold wild rice materials with reduced granulation, shorter mango length, lower plant height, longer grain length, thickened stems, and shortened spike time to varying degrees, proving that the heterogenous four-fold wild rice rapidly domestication strategy is highly feasible, and is of great significance for the future creation and cultivation of new crop species.
    (Reporter Lu Chengguang)
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