Seed shattering
US6420628B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1998 |
| Grant date | Jul 16, 2002 |
| Priority date | — |
| Expiry date | Sep 28, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12Y302/01015
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A plant is provided which contains at least one dehiscence zone (DZ)-selective chimeric gene incorporated in the nuclear genome of its cells, wherein said DZ-selective chimeric gene comprises the following operably linked DNA fragments: a) a transcribed DNA region encoding: 1) a RNA which, when produced in cells of a particular DZ of the plant, prevents, inhibits or reduces the expression in DZ cells of an endogenous gene of the plant encoding a cell wall hydrolase, particularly an endopolygalacturonase, or, 2) a protein or polypeptide, which when produced in DZ cells, kills or disables them or interferes with their normal metabolism, physiology or development; b) a plant expressible promoter which directs expression of transcribed DNA region at least in DZ cells, provided that if transcribed DNA region encodes a protein or polypeptide, or encodes an antisense RNA or ribozyme directed to a sense RNA encoded by an endogenous gene that is expressed in plant in cells other than DZ cells, plant expressible promoter is a DZ-selective promoter, which directs expression of transcribed region selectively in DZ cells and wherein plant is characterized by modified dehiscence properties, pref…
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