Compositions providing tolerance to multiple herbicides and...

Details Compositions providing tolerance to multiple herbicides and... Compositions providing tolerance to multiple herbicides and...

C - Chemistry, Metallurgy

12

N

C12N 15/82 (2006.01)

Patent

CA 2625371

Methods and compositions are provided related to improved plants that are tolerant to more than one herbicide. Particularly, the invention provides plants that are tolerant of glyphosate and are tolerant to at least one ALS inhibitor, and methods of use thereof. The glyphosate/ALS inhibitor-tolerant plants comprise a polynucleotide that encodes a polypeptide that confers tolerance to glyphosate and a polynucleotide that encodes an ALS inhibitor- tolerant polypeptide. In specific embodiments, a plant of the invention expresses a GAT polypeptide and an HRA polypeptide. Methods to control weeds, improve plant yield, and increase transformation efficiencies are provided.

Méthodes et compositions concernant des plantes tolérantes à plus d'un herbicide. L'invention concerne en particulier des plantes tolérantes au glyphosphate et à au moins un inhibiteur de l'ASL, ainsi que des méthodes d'utilisation. Les plantes tolérantes au glyphosate/inhibiteur d'ALS renferment un polynucléotide qui confère une tolérance au glyphosphate et un polynucléotide codant pour un polypeptide tolérant à un inhibiteur d'ALS. Dans des modes de réalisation spécifiques, une plante de l'invention exprime un polypeptide GAT et un polypeptide HRA. Sont décrites des méthodes de lutte contre les mauvaises herbes ainsi que des méthodes propres à améliorer les rendements et à accroître les efficacités de transformations.

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