Abstract: Disclosed are a decoy peptide which is a partial peptide of ASYMMETRIC LEAVES1 (AS1), the decoy peptide being capable of interacting with ?C1 encoded by a betasatellite of a virus belonging to the family Geminiviridae, a nucleic acid encoding the decoy peptide, an expression vector comprising the nucleic acid, a geminivirus disease control agent comprising the decoy peptide or the nucleic acid, a method for controlling a geminivirus disease using the geminivirus disease control agent, a transgenic plant into which the nucleic acid is introduced, and a method for reducing a disease symptom caused by a virus that comprises ?C1 and belongs to the family Geminiviridae, using the nucleic acid. Also disclosed is a method for evaluating the degree of reduction in a disease symptom caused by a virus that comprises ?C1 and belongs to the family Geminiviridae.

Abstract: Disclosed are a decoy peptide which is a partial peptide of ASYMMETRIC LEAVES1 (AS1), the decoy peptide being capable of interacting with ?C1 encoded by a betasatellite of a virus belonging to the family Geminiviridae, a nucleic acid encoding the decoy peptide, an expression vector comprising the nucleic acid, a geminivirus disease control agent comprising the decoy peptide or the nucleic acid, a method for controlling a geminivirus disease using the geminivirus disease control agent, a transgenic plant into which the nucleic acid is introduced, and a method for reducing a disease symptom caused by a virus that comprises ?C1 and belongs to the family Geminiviridae, using the nucleic acid. Also disclosed is a method for evaluating the degree of reduction in a disease symptom caused by a virus that comprises ?C1 and belongs to the family Geminiviridae.

Abstract: Control of cell cycle is important in crop breeding, and it is demanded to develop, through the control, techniques for modifying cell growth in plants, techniques for modifying the development/differentiation of plant individuals and plant genes for use therein. It has been successfully disclosed that plant gene 3Rmyb is a factor indispensable for the multiplication of plant cells. Thus, there are provided, with the gene as a target, techniques for modifying the multiplication of plant cells and techniques for modifying the development/differentiation of plant individuals, and there can be obtained plants and plant cells retaining modified cell growth and development/differentiation. These enable development of plants with desirable properties, such as specified organ enlargement, male sterility or improved stress resistance.

Abstract: The present invention provides a technology for modifying the gene expression of a plant body in combination with using histone-chaperon-activity of protein 6b. According to the invention, gene expression is changed or modified globally.

Abstract: Control of cell cycle is important in crop breeding, and it is demanded to develop, through the control, techniques for modifying cell growth in plants, techniques for modifying the development/differentiation of plant individuals and plant genes for use therein. It has been successfully disclosed that plant gene 3Rmyb is a factor indispensable for the multiplication of plant cells. Thus, there are provided, with the gene as a target, techniques for modifying the multiplication of plant cells and techniques for modifying the development/differentiation of plant individuals, and there can be obtained plants and plant cells retaining modified cell growth and development/differentiation. These enable development of plants with desirable properties, such as specified organ enlargement, male sterility or improved stress resistance.