Promoter elements conferring root-preferred gene expression
US6228645A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1997 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | Dec 22, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A40/146
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
This invention relates generally to mechanisms of gene expression in plants and more specifically to regulation of expression of genes in plants in a "tissue-preferred" manner. A method for isolation of transcriptional regulatory elements that contribute to tissue-preferred gene expression is disclosed. Transcriptional regulatory elements isolated using the methods of this invention are demonstrated to direct tissue-preferred gene expression of genes within certain tissues of a plant. DNA molecules representing tissue-preferred transcriptional regulatory elements, vectors containing said DNA molecules and plants transformed with said vectors are demonstrated. Said transcriptional regulatory units are utilized to drive tissue-preferred expression of a gene that confers a selective advantage upon a plant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.