In eukaryotes, chemical modifications of DNA, such as DNA methylation, determine which genes are expressed from the genome. The determinant process by DNA methylation is often independent of any changes of DNA sequence itself. Such a regulatory mechanism is called epigenetics. In plants, DNA methylation patterns are maintained from generation to generation. We apply the epigenetic regulation systems to developing a new breeding technique using model plants; Arabidopsis and tomato.
Observation of transgenic plants expressing GFP fusion protein using fluorescence microscope.