Method to obtain male sterile plants
US6025546A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1997 |
| Grant date | Feb 15, 2000 |
| Priority date | — |
| Expiry date | Nov 12, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N15/8289
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A plant having in the nuclear genome of its cells foreign DNA comprising PA1 a male-sterility gene comprising: PA2 a male-sterility DNA encoding a sterility RNA, protein or polypeptide which, when produced or overproduced in a stamen cell of the plant, significantly disturbs the metabolism, functioning and/or development of the stamen cell, and, PA2 a sterility promoter directing expression of the male-sterility DNA selectively in specific stamen cells of said plant, the male-sterility DNA being in the same transcriptional unit as, and under the control of, the sterility promoter, and PA1 a coregulating gene comprising: PA2 a coregulating DNA encoding a coregulating RNA, protein or polypeptide which is capable, when produced in plant cells wherein said sterility RNA, protein or polypeptide is produced, of sufficiently preventing the activity of said sterility RNA, protein or polypeptide, PA2 whereby said coregulating DNA is in a transcriptional unit which is different from the transcriptional unit of said sterility DNA.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.