Plants having enhanced yield-related traits and a method for...

C - Chemistry – Metallurgy – 12 – N

Patent

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C12N 15/82 (2006.01) A01H 5/00 (2006.01)

Patent

CA 2734964

The present invention relates generally to the field of molecular biology and concerns a method for enhancing yield-related traits in plants by modulating expression in a plant of one ore more nucleic acid(s) encoding at least two iSYT (interactor of SYT-synovial sarcoma translocation-) polypeptides. The present invention also concerns plants having modulated expression of a nucleic acid encoding at least two iSYT polypeptides, which plants have enhanced yield-related traits relative to corresponding wild type plants or other control plants. The invention also provides hitherto unknown nucleic acids encoding at least two iSYT polypeptides, and constructs comprising the same, useful in performing the methods of the invention. The invention also provides constructs useful in the methods of the invention. Furthermore the present invention also relates to an iSYT-based protein complex. It further relates to the use of the complex to promote plant growth, and to a method for stimulating the complex formation, by overexpressing at least two members of the complex.

Cette invention concerne d'une manière générale le domaine de la biologie moléculaire, notamment une méthode de stimulation des caractéristiques associées au rendement, dans des végétaux. Cette méthode consiste à moduler l'expression, dans une plante, d'un ou plusieurs acides nucléiques codant au moins deux polypeptides iSYT (agent interactif de SYT (translocation du sarcome synovial)). L'invention concerne également des végétaux dont l'expression d'un acide nucléique codant au moins deux polypeptides iSYT est modulée, lesdits végétaux ayant des caractéristiques associées au rendement meilleures que celles des végétaux correspondants de type sauvage ou d'autres végétaux témoins. L'invention concerne par ailleurs des acides nucléiques jusqu'ici inconnus codant au moins deux polypeptides iSYT, et des constructions les comprenant, utiles pour mettre en oeuvre les méthodes de l'invention. L'invention concerne aussi des constructions utilisées dans les méthodes de l'invention. En outre, l'invention concerne un complexe protéinique à base d'iSYT. Elle concerne aussi l'utilisation dudit complexe pour favoriser la croissance de végétaux, et une méthode de stimulation de la formation du complexe, par surexpression d'au moins deux éléments dudit complexe.

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