Back to results
US 6,627,799 B1Granted
Plants with modified stamen cells
AssigneeBayer BioScience N.V.
InventorsCelestina Mariani, Jan Leemans, Willy De Greef, Marc De Beuckeleer
Life of this patent
Estimating the term…
Abstract
A plant, the nuclear genome of which is transformed with a foreign DNA sequence encoding a product which selectively disrupts the metabolism, functioning and/or development of stamen cells of the plant. The foreign DNA sequence also optionally encodes a marker.
Claims71
A plant comprising cells having a nuclear genome transformed with a foreign DNA, said foreign DNA comprising:
- a) a male-sterility DNA encoding a protein or polypeptide capable, when produced in an anther cell of a plant, of significantly disturbing at least one of metabolism, functioning and development of said anther cell;
- and
- b) a first promoter which directs gene expression selectively in stamen cells of a plant, and causes gen e expression in anther cells of said plant,
- said male-sterility DNA being in the same transcriptional unit as, and under the control of, said first promoter;
- wherein said anther cells of said plant are killed or disabled by expression of said male-sterility DNA in said anther cells of said plant, so as to render said plant incapable of producing fertile male gametes.
2 more elements
Dependencies are inferred from the claim text.