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    Home > Food News > Food Articles > The study found a new gene for anti-cotton yellow wilting disease

    The study found a new gene for anti-cotton yellow wilting disease

    • Last Update: 2021-03-16
    • Source: Internet
    • Author: User
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    recently, Li Fuguang, a researcher at the Cotton Research Institute of the Chinese Academy of Agricultural Sciences, conducted a systematic study of the function and mechanism of the land cotton rnucose protein gene GhRPL18A-6 in the cotton anti-yellowing disease process. The findings were published online in Industrial Crops and Products.
    the team found that the gene regulates the expression of disease-resistant pathline genes such as cell wall synthesis and lyonin synthesis, and improves the resistance level of genetically modified cotton at multiple stages of growth. This study provides ideas for analyzing the resistance of cotton yellow wilt disease, and provides new disease-resistant genes and species resources for molecular breeding of disease-resistant varieties.
    is the most important natural fiber material in the world. Cotton yellow wilting disease can be called cotton "cancer", prevention and treatment is very difficult, the annual loss due to yellow wilt disease up to billions of dollars, to overcome yellow wilt disease has become the primary task of sustainable development of cotton. Land cotton has a narrow genetic background and lacks the resource materials of yellow withering disease resistance, so it is difficult to cultivate resistant varieties in a short period of time through traditional breeding methods. Therefore, it is of great significance to excavate the anti-yellow withering gene to improve the resistance of cotton-growing varieties to yellow wilt disease.
    researchers confirmed that GhARPL18A-6 was involved in the disease-resistant regulation of cotton by interfering with the expression of the GhARPL18A-6 gene, which made cotton sensitive to jaundish bacteria (Dali rogi) and combined with the expression patterns of the gene under bacterial infection. The seedling anti-yellowing disease identification of genetically modified plants and the two-year disease bed-forming disease resistance identification showed that the excessive expression of GhARPL18A-6 can enhance the resistance of cotton to yellow wilt disease. Further research found that under the infested conditions of Dali Trobe, the genetically modified material was more obvious than the affected material, the woody and reactive oxygen explosion of the thin-walled tissue cell wall of the woody part, the amount of colonization of Dali mycobacteria in the stem and root was less, and the expression of some labeled genes associated with disease resistance was more obvious upward expression. The expression spectrum analysis showed that the genetically modified material caused the upward expression of cell wall synthesis, ligand synthesis, sucrose metabolism and other related pathline genes different from the control group after the inoculation of Dali rogi.
    research is supported by the National Natural Science Foundation of China and the Chinese Academy of Agricultural Sciences science and technology innovation project. (Source: Li Chen, China Science Journal)
    relevant paper information:
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