PROMOTER CAPABLE OF BEING EXPRESSED IN ROOT OF PLANT

摘要

A cDNA library is produced from a tuberous root of a sweet potato plant, and cDNA expressed at high frequency (IT394) is obtained by cluster analysis, and a region upstream to the cDNA is obtained. When GFP is linked to the region upstream to IT394 and the linked product is introduced into a plant Arabidopsis thaliana, the emission of fluorescence is observed in a root and an embryonic axis of the plant. When the linked product is introduced into a sweet potato plant, the strong emission of fluorescent is observed in a tuberous root of the plant. These results reveal that the region upstream to IT394 can be used as a promoter acting in a tuberous root of a sweet potato plant.