Chimeric proteins for activation of brassinosteroid signaling and use thereof

摘要

The present invention relates to a chimeric protein for activating brassinosteroid signaling; a recombinant expression vector comprising a gene encoding the chimeric protein; transgenic plants into which the vector was introduced; transformed seeds of the plant; And it relates to a method of regulating brassinosteroid signaling in plants by treating the transgenic plants with rapamycin. The transgenic plant expressing the chimeric receptor/co-receptor of the present invention has the advantage of being able to precisely regulate brassinosteroid signaling by treatment with rapamycin. In particular, when the chimeric receptor/co-receptor provided in the present invention is expressed only in a specific tissue using a tissue-specific promoter, brassinosteroid signaling can be activated only in that tissue using rapamycin. . Therefore, when the transgenic plant expressing the chimeric receptor/co-receptor of the present invention is used, it can be utilized for the development of crops with improved agricultural traits through the study of brassinosteroid signal transduction and redesign of the brassinosteroid signal transduction.