| 摘要 |
<p>Novel nucleic acids being capable of exerting a promoter activity in the phloem tissue and transgenic plants containing these nucleic acids and being capable of expressing a desired structural gene under the control of the nucleic acids. The above nucleic acids involve those having the base sequences represented by SEQ ID NOS:1 and 2 in Sequence Listing and those derived therefrom by substitution, deletion, insertion or addition of one or more bases and being capable of showing the promoter activity in plants and parts of these nucleic acids being capable of showing the promoter activity. The above transgenic plants are those which have been transformed by such a nucleic acid and a desired structural gene to be expressed in the plants functionally ligated to the downstream of the nucleic acid serving as a promoter thereof and can express the structural gene in the phloem tissue.</p> |
