Plants having improved growth characteristics and methods...

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 5/10 (2006.01) C07K 14/415 (2006.01) C12N 15/82 (2006.01)

Patent

CA 2631779

The present invention relates generally to the field of molecular biology and concerns a method for improving various plant growth characteristics by modulating expression in a plant of a nucleic acid encoding a GRP (Growth- Related Protein). The present invention also concerns plants having modulated expression of a nucleic acid encoding a GRP, which plants have improved growth characteristics relative to corresponding wild type plants or other control plants. The invention also provides constructs useful in the methods of the invention. The GRP may be one of the following: Seed Yield Regulator (SYR), FG- GAP1 CYP90B, CDC27, AT-hook transcription factors, DOF transcription factors and Cyclin Dependent Kinase Inhibitors (CKIs).

La présente invention concerne d'une manière générale le domaine de la biologie moléculaire et concerne un procédé destiné à améliorer diverses caractéristiques de croissance de plantes en modulant, dans une plante, une expression d'un acide nucléique codant pour une protéine de croissance. La présente invention concerne également des plantes ayant une expression modulée d'un acide nucléique codant pour une protéine de croissance, lesquelles plantes présentent des caractéristiques de croissance améliorées par rapport aux plantes de type sauvage correspondantes ou à d'autres plantes témoins. La présente invention concerne également des constructions utiles dans les procédés de la présente invention. La protéine de croissance peut être l'un des éléments suivants : un régulateur du rendement en graines (SYR), FG-GAP1 CYP90B, CDC27, des facteurs de transcription AT-hook, des facteurs de transcription DOF et des inhibiteurs de kinase cycline-dépendante (CKI).

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