Receptor-like protein kinase, rkn, and methods of use for...

Details Receptor-like protein kinase, rkn, and methods of use for... Receptor-like protein kinase, rkn, and methods of use for...

A - Human Necessities

01

H

A01H 1/00 (2006.01) A01H 5/00 (2006.01) C07K 1/00 (2006.01) C07K 14/415 (2006.01) C12N 5/04 (2006.01) C12N 9/12 (2006.01) C12N 15/00 (2006.01) C12N 15/10 (2006.01) C12N 15/11 (2006.01) C12N 15/29 (2006.01) C12N 15/52 (2006.01) C12N 15/63 (2006.01) C12N 15/66 (2006.01) C12N 15/67 (2006.01) C12N 15/82 (2006.01) C12N 15/84 (2006.01)

Patent

CA 2337093

The present invention is based on the discovery that increased growth and yield in plants can be achieved by elevating the level of receptor-like protein kinase (RKN), a member of the receptor-like protein kinase (RLK) family. RKN polypeptide and polynucleotides encoding RKN polypeptide are provided, as are RKN expression control sequences. Also included are methods of producing a genetically modified plant characterized as having increased growth and yield as compared to a corresponding wild-type plant. A method for genetically modifying a plant cell such that a plant produced from the cell will have a modulated yield is also provided. A method of producing a genetically modified plant characterized as having increased expression of a gene product of interest in its roots as compared to the corresponding wild type plant is also provided. The invention also provides plants, plant tissue, and seeds produced by the genetically modified plants of the invention.

Cette invention repose sur la découverte qu'il est possible de renforcer la croissance de plantes et d'en accroître le rendement si l'on augmente la teneur en protéine kinase du type récepteur (RKN), un membre de la famille des RKL. L'invention concerne également un polypeptide de RKN et des polynucléotides codant ce polypeptide comme séquences agissant sur l'expression de la RKN. Cette invention a également trait à des techniques de production de plante modifiée par génie génétique se caractérisant par un renforcement de la croissance et une augmentation du rendement comparativement à la plante correspondante de type sauvage. Elle porte, en outre, sur une technique de modification par génie génétique de cellule végétale, la plante produite à partir de cette cellule ayant un rendement modulé, ainsi que sur une technique de production d'une plante modifiée par génie génétique caractérisée par une expression accrue, dans ses racines, d'un certain produit génique, comparativement à ce qu'il en est pour la plante correspondante de type sauvage. Elle concerne, de surcroît, des plantes, des tissus végétaux et des semences produites par ces plantes modifiées par génie génétique.

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