Generation of plants with improved pathogen resistance
AssigneeAgrinomics LLC
InventorsAllan Lammers, Xing Liu, Stanley Bates, Christina Westerlund, Ry Wagner, John Davies
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Abstract
The present invention is directed to plants that display a pathogen resistance phenotype due to altered expression of a PPR1 nucleic acid. The invention is further directed to methods of generating plants with a pathogen resistance phenotype.
Claims13
A transgenic plant comprising a plant transformation vector comprising a nucleotide sequence that encodes or is complementary to a sequence that encodes a PPR1 polypeptide comprising the amino acid sequence of SEQ ID NO:2, or an ortholog thereof, wherein said transgenic plant has increased resistance to pathogens controlled by the salicylic acid-dependent resistance pathway relative to control plants.
A method of producing increased pathogen resistance in a plant, said method comprising:
- a) introducing into progenitor cells of the plant a plant transformation vector comprising a nucleotide sequence that encodes or is complementary to a sequence that encodes a PPR1 polypeptide comprising the amino acid sequence of SEQ ID NO:2, or an ortholog thereof, and
- b) growing the transformed progenitor cells to produce a transgenic plant, wherein said polynucleotide sequence is expressed, and said transgenic plant exhibits increased resistance to pathogens controlled by the salicylic acid-dependent resistance pathway relative to control plants.
A method of generating a plant having an increased pathogen resistance phenotype comprising identifying a plant that has an allele in its PPR1 gene that results in increased pathogen resistance compared to plants lacking the allele and generating progeny of said identified plant, wherein the generated progeny inherit the allele and have the increased pathogen resistance phenotype.
Dependencies are inferred from the claim text.