Method of plant improvement using aspartate kinase-homoserine dehydrogenase
AssigneeBiogemma
InventorsStéphane Lafarge, Jacques Rouster, Francois Torney, Jerome Martin
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Abstract
The invention relates to the field of plant improvement, in particular of the improvement of yield for plants, by transforming plants with a transgene containing a promoter driving expression of a AK-HSDH protein.
Claims13
A method for increasing plant yield, wherein yield is the weight of seeds per unit area, comprising the steps of sowing seeds of wheat, and growing plants from these sowed seeds, wherein the seeds are transgenic wheat seeds containing, in the genome, a transgene comprising a nucleic acid construct comprising:
- i. a promoter active in plants, wherein the promoter is a constitutive promoter, operatively linked to
- ii. a nucleic acid coding for an aspartate kinase-homoserine dehydrogenase (AK-HSDH) protein, wherein the AK-HSDH comprises the amino acid sequence set forth in SEQ ID NO:2;
- and
- wherein the yield obtained from said grown plants is increased as compared to the yield obtained from plants grown from seeds which do not contain said nucleic acid construct.
A method for increasing or maintaining plant yield under stressed conditions, wherein yield is the weight of seeds per unit area, comprising the steps of sowing seeds of wheat, and growing plants from these sowed seeds, wherein the seeds are transgenic wheat seeds containing, in the genome, a transgene comprising a nucleic acid construct comprising:
- i. a promoter active in plants, wherein the promoter is a constitutive promoter, operatively, linked to
- ii. a nucleic acid coding for an aspartate kinase-homoserine dehydrogenase (AK-HSDH) protein, wherein the AK-HSDH comprises the amino acid sequence set forth in SEQ ID NO:2, and
- wherein the growing phase is made under stress conditions, and
- wherein the obtained from said grown plants is increased as compared to the yield obtained from plants grown from seeds which do not contain said nucleic acid construct or the yield obtained from said grown plants is maintained as compared to the yield obtained from plants containing said nucleic acid construct and grown in normal conditions.
Dependencies are inferred from the claim text.