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

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/82 (2006.01) A01H 5/00 (2006.01) C07K 14/415 (2006.01)

Patent

CA 2685848

The present invention relates generally to the field of molecular biology and concerns a method for enhancing plant yield-related traits relative to control plants. More specifically, the present invention concerns a methodfor enhancing yield related traitsin plants relative to control plants, by modulating, preferably increasing, expression in the roots of a plant, of a nucleic acid sequence encoding a 2 -cysteine peroxiredoxin (2-Cys PRX); or by modulating expression of a nucleic acid encoding an ANN polypeptide in a plant. The present invention also concerns plants having modulated, preferably increased, expression in the roots, of a nucleic acid sequence encoding a 2-Cys PRX, or having modulated expression of a nucleic acid encoding an ANN polypeptide, which plants have enhanced yield-related traits relative to control plants. The invention also provides constructs useful in the methods of the invention.

L'invention se rapporte au domaine de la biologie moléculaire et concerne un procédé qui permet d'améliorer des traits de rendement chez une plante par rapport à des plantes témoins. L'invention porte, plus spécifiquement, sur un procédé qui permet d'améliorer des traits de rendement chez des plantes par rapport à des plantes témoins en modulant, de préférence en augmentant, l'expression dans les racines d'une plante d'une séquence nucléotidique codant une 2-cystéine péroxyredoxine (2-Cys PRX); ou en modulant l'expression d'un acide nucléique codant un polypeptide ANN chez une plante. L'invention concerne également des plantes présentant une expression modulée, de préférence augmentée, dans les racines d'un acide nucléique codant une 2-Cys PRX, ou présentant une expression modulée d'un acide nucléique codant un polypeptide ANN, lesdites plantes possédant des traits de rendement améliorés par rapport à des plantes témoins. L'invention se rapporte également à des produits de recombinaison utilisés selon les procédés de l'invention.

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