Polynucleotides and methods for making plants resistant to...

C - Chemistry – Metallurgy – 12 – Q

Patent

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Details

C12Q 1/68 (2006.01) C07K 14/415 (2006.01) C12N 15/82 (2006.01)

Patent

CA 2703533

This invention relates to polynucleotide sequences encoding genes that can confer resistance to the plant pathogen Colletotrichum, which causes anthracnose stalk rot, leaf blight and top dieback in corn and other cereals. It further relates to plants and seeds of plants carrying chimeric genes comprising said polynucleotide sequences, which enhance or confer resistance to the plant pathogen Colletotrichum, and processes of making said plants and seeds. The invention further presents sequences that can be used as molecular markers that in turn can be used to identify the region of interest in corn lines resulting from new crosses and to quickly and efficiently introgress the genes from corn lines carrying said genes into other corn lines that do not carry said genes, in order to make them resistant to Colletotrichum and resistant to stalk rot.

L'invention concerne des séquences de polynucléotides codant des gènes qui peuvent conférer une résistance envers les pathogènes Colletotrichum de plantes, qui provoquent l'anthracnose, le dessèchement de la feuille et le dépérissement terminal du maïs et d'autres céréales. L'invention concerne en outre des plantes et des graines de plantes portant des gènes chimériques comportant lesdites séquences de polynucléotides, qui accentuent ou confèrent une résistance envers les pathogènes Colletotrichum de plantes, et des procédés de fabrication desdites plantes et graines. L'invention présente en outre des séquences qui peuvent être utilisées comme marqueurs moléculaires qui peuvent à leur tour être utilisés pour identifier la région d'intérêt dans des lignées de maïs résultant de nouveaux croisements et pour pratiquer une introgression rapide et efficace des gènes à partir de lignées de maïs portant lesdits gènes dans d'autres lignées de maïs qui ne portent pas lesdits gènes, afin de les rendre résistants au Colletotrichum et à l'anthracnose.

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