A new gene for the development of rice spikes was cloned

) Recently, Wan Jianmin, a researcher at the Crop Science Research Institute of the Chinese Academy of Agricultural Sciences and a member of the Chinese Academy of Engineering, cloned OsPEX5, a new gene for the development of rice spikes, and conducted an in-depth study of the molecular mechanisms that regulate the development of rice spikes. The findings were published online in The New Botanist.
is a unique structural unit of the flower sequence of the undergraduate plant, and its normal development determines the yield and quality of rice. It is of great theoretical value and practical significance to study the molecular regulation mechanism of rice spike development.
the team identified osPEX5, a protein gene that encodes peroxidases, using a map cloning method based on the developmental malformation mutants of rice spikes. OsPEX5 protein can be exchanged with the 12-oxygen-plant ddoleic acid reductase in the biosynthetic pathway of jasmine acid, and affect its peroxidase body positioning, resulting in a decrease in jasmine acid content in mutants, and the recovery of abnormal ideographic patterns of small spikes through external methyl jasmine acid treatment.
further studies have found that forward regulatory factors in the jasmine acid signaling pathway in rice can be combined with the promoters of key genes in flower development and their expression, which is antagoned by negative regulatory factors in the jasmine acid signaling pathway. This study perfects the molecular mechanism of jasmine acid to regulate plant reproductive development and provides an important theoretical basis for regulating the biosynthetic synthesis of jasmine acid in plants.
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