Improved grg23 epsp synthases: compositions and methods of use

C - Chemistry – Metallurgy – 12 – N

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C12N 15/82 (2006.01) A01H 1/00 (2006.01) A01H 5/00 (2006.01) C12N 9/10 (2006.01)

Patent

CA 2671203

Compositions and methods for conferring herbicide resistance or tolerance to bacteria, plants, plant cells, tissues and seeds are provided. Compositions include polynucleotides encoding herbicide resistance or tolerance polypeptides, vectors comprising those polynucleotides, and host cells comprising the vectors. The nucleotide sequences of the invention can be used in DNA constructs or expression cassettes for transformation and expression in organisms, including microorganisms and plants. Compositions also include transformed bacteria, plants, plant cells, tissues, and seeds.. In particular, isolated polynucleotides encoding glyphosate resistance or tolerance polypeptides are provided. Additionally, amino acid sequences corresponding to the polynucleotides are encompassed. In particular, the present invention provides for isolated polynucleotides containing nucleotide sequences encoding the amino acid sequence shown in SEQ ID NO:9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, or 35, or the nucleotide sequence set forth in SEQ ID NO:6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, or 34.

La présente invention concerne des compositions et des procédés permettant de conférer une résistance ou une tolérance aux herbicides à des bactéries, plantes, cellules végétales, tissus et graines. Les compositions comprennent des polynucléotides codant la résistance ou la tolérance aux herbicides de polypeptides, des vecteurs comprenant ces polynucléotides, et des cellules hôtes comprenant les vecteurs. Les séquences nucléotidiques de l'invention peuvent être utilisées dans des constructions d'ADN ou des cassettes d'expression pour la transformation et l'expression dans des organismes, dont des microorganismes et des plantes. Les compositions comprennent également des bactéries, plantes, cellules végétales, tissus et graines transformés~ En particulier, des polynucléotides isolés codant la résistance ou la tolérance au glyphosate des polypeptides sont prévus. En outre, des séquences d'acides aminés correspondant aux polynucléotides sont comprises. En particulier, la présente invention prévoit des polynucléotides isolés contenant des séquences nucléotidiques codant la séquence d'acides aminés représentée dans SEQ ID n° : 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, ou 35, ou la séquence nucléotidique présentée dans SEQ ID n° : 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32 ou 34.

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