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    Home > Food News > Food Articles > Research found a new mechanism for soybean salt tolerance

    Research found a new mechanism for soybean salt tolerance

    • Last Update: 2021-07-27
    • Source: Internet
    • Author: User
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    Research found a new mechanism for soybean salt tolerance
    Research has discovered a new mechanism of soybean salt tolerance Research has discovered a new mechanism of soybean salt tolerance

     

    The team of Zhang Jinsong, a researcher at the Institute of Genetics and Development of the Chinese Academy of Sciences, discovered a new mechanism for soybean salt tolerance
    .
    Researchers have discovered a member of the nuclear factor Y complex, GmNFYA, which is involved in the regulation of histone acetylation modification, thereby promoting the expression of downstream salt-tolerant genes, thereby improving the salt tolerance of soybeans

    .
    Related results were recently published in "Journal of Plant Biotechnology"

    .

    Abiotic stresses such as salinity and drought are the main environmental factors restricting agricultural production
    .
    These stress environments are not conducive to crop growth, resulting in reduced yields and even plant death

    .
    Soybean is an important crop, and more than 80% of China's demand needs to be imported

    .
    Improving the salt tolerance of soybeans will help enhance the resistance of soybeans to disasters.
    It can also use low-salinization land to increase soybean planting area and increase yield

    .

    The researchers found that there is no difference in the coding region of the GmNFYA gene among various soybean varieties
    .
    Regardless of whether it is cultivated soybean or wild soybean, when exposed to salt stress, the expression of this gene will increase significantly, suggesting that the salt stress response of soybean is closely related to the expression of this gene

    .
    Overexpression of GmNFYA gene in the cultivated soybean variety JACK can significantly improve the salt tolerance of genetically modified soybeans

    .

    The author's in-depth study found that GmNFYA protein can interact with FVE, a component of histone deacetylase complex, and FVE can interact with HDA13
    .
    GmNFYA can compete with HDA13 for binding to FVE protein

    .
    Reducing the expression of FVE and HDA13 genes can improve the salt tolerance of soybean plants

    .

    They speculated that under normal conditions, the FVE/HDA13 complex deacetylated histone H3K9, causing nearby salt-tolerant genes to be "turned off"
    .
    After salt stress, GmNFYA accumulates and competitively binds to FVE with HDA13 to release HDA13, which helps maintain the acetylation state of nearby histone H3K9, activates the expression of downstream salt-tolerant genes, and improves soybean salt-tolerance

    .

    Further analysis also identified an excellent haplotype of the GmNFYA promoter.
    This haplotype gene is significantly activated by GmNFYA protein under salt stress, so this haplotype can be selected in future breeding practices

    .
    This study reveals the mechanism by which soybean GmNFYA improves salt tolerance by regulating histone acetylation, which has important reference and potential application value for soybean stress tolerance breeding

    .

    The research was funded by the Key Deployment Project of the Chinese Academy of Sciences and the National Natural Science Foundation of China
    .
    (Source: Feng Lifei, China Science News)

    Chinese Academy of Sciences

    Related paper information: https://doi.
    org/
    10.
    1111/pbi.
    13668

    https://doi.
    org/
    10.
    1111/pbi.
    13668
    10.
    1111/pbi.
    13668
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