Abstract:
The present invention provides a method for regulating DRM (domain rearranged methyltransferase) protein activity in a plant comprising: base sequences represented by sequence number 1 or 2; a microRNA-396 molecule which consists of base sequences complementary to the above base sequences and which is isolated from Capsicum annuum; a vector containing the microRNA-396; and a step for regulating the expression of the microRNA-396 molecule by transfecting a plant cell with the recombinant vector. On the basis of a method for controlling all phenomena related to the florescence, seed development, and epigenetic phenomenon of the plant based on the fact that the aspect of regulating the DRM methyltransferase, which is highly involved in plant epigenetics, by the microRNA-396 from the Capsicum annuum is conserved in the Solanaceae including tomatoes revealed by the present invention, the DRM methyltransferase can be applied to agricultural biotechnology for improving traits of food crops, forage crops, floriculture crops, horticultural crops, and energy crops and be available for various medical applications like differentiation of cancer cells and neural cells, which are mainly involbed in epigenetic information, thereby being able to be very useful in many different fields.