Plants with modified stamen cells
AssigneeAventis CropScience GmbH
InventorsCelestina Mariani, Jan Leemans, Willy De Greef, Marc De Beuckeleer
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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.
Claims97
A DNA comprising a first chimeric DNA which comprises:
- a) a male-sterility DNA encoding a protein or polypeptide capable, when produced in another cells of a plant, of killing or disabling them to prevent production of fertile male gametes;
- and
- b) a first promoter which directs gene expression selectively in stamen cells of a plant, and causes gene expression in anther cells of said plant,
- said DNA sequence being in the same transcriptional unit as and under control of said first promoter.
A DNA which is the T-DNA of pTTM4 of FIG. 6, the T-DNA of pTTM6 of FIG. 7A, the T-DNA of pTTM6A- of FIG. 7B, the T-DNA of pTTM8 of FIG. 8, the T-DNA of pTVEP1 of FIG. 9A, the T-DNA of pTVEP2 of FIG. 9B, the T-DNA of pTVE62 of FIG. 10B or the T-DNA of pTVE63 of FIG. 10A.
A DNA comprising a first chimeric DNA which comprises:
- a) a male-sterility DNA encoding a protein or polypeptide which is cytotoxic to plant cells;
- and
- b) a first promoter which directs gene expression selectively in stamen cells of a plant,
- said DNA sequence being in the same transcriptional unit as and under control of said first promoter.
Dependencies are inferred from the claim text.