Transgenic plant expressing soybean glycinin

摘要

A region containing the glutelin gene promoter, which expresses a gene specifically in the endosperm of rice plant seed, was isolated; a vector was constructed to have the natural or modified soybean glycinin gene ligated downstream of the promoter; the vector construct was introduced into a cultured cell of rice plant; and thus a transgenic rice plant was obtained. The inventors studied the tissue specificity and form of soybean glycinin expressed in the created transgenic rice plant, and then found that the expressed soybean glycinin was accumulated in rice plant seeds in the transgenic rice plant and that the accumulated soybean glycinin was present as the matured protein formed by protein processing.