Reversible nuclear genetic system for male sterility in transgenic plants
US6399856B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1998 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Nov 19, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S47/01
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Plant development can be altered by transforming a plant with a genetic construct that includes regulatory elements and DNA sequences capable of acting in a fashion to inhibit pollen formation or function, thus rendering the transformed plant reversibly male-sterile. In particular, the present invention relates to the use of dominant negative genes and an anther-specific promoter. Male sterility is reversed by incorporation into a plant of a second genetic construct which represses the dominant negative gene. The invention also relates to novel DNA sequences which exhibit the ability to serve as anther-specific promoters in plants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.