DNA promoter fragments from wheat
US5139954A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | May 18, 1990 |
| Grant date | Aug 18, 1992 |
| Priority date | — |
| Expiry date | May 18, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/10
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
The preparation and use of nucleic acid promoter fragments homologous to the Em gene of wheat to bring the expression of selected genes in plants under external control are described. The Em promoter fragment is responsive to abscisic acid (ABA) and other compounds possessing ABA-like activity. Through transformation of protoplasts and plant cells with recombinant DNA constructs incorporating such promoter fragments, operably linked selected genes are expressed in response to ABA and compounds possessing ABA-like activity. The application of such promoter fragments and constructs to transient assay systems to predict the likelihood of stable transformation in plants is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.