Plant root-specific nematode resistance

C - Chemistry – Metallurgy – 12 – N

Patent

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C12N 15/82 (2006.01) A01H 5/00 (2006.01)

Patent

CA 2744939

The invention provides expression vectors comprising root-specific promoters in operative association with polynucleotides that are down-regulated in syncytia of nematode-infected plants, for use in methods of producing transgenic plants with increased resistance to nematode infestation. The invention also provides nematode-resistant transgenic plants and seeds comprising such expression vectors.

L'invention porte sur des vecteurs d'expression comprenant des promoteurs spécifiques de la racine en association fonctionnelle avec des polynucléotides qui sont régulés de manière négative dans les syncytium de plantes infectées par des nématodes, pour une utilisation dans des procédés de production de plantes transgéniques avec une résistance accrue à une infestation par des nématodes. L'invention porte également sur des plantes transgéniques résistantes aux nématodes et sur des semences comprenant de tels vecteurs d'expression.

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