Wheat plants having increased resistance to imidazolinone herbicides
AssigneeUniversity of Saskatchewan
InventorsCurtis J. POZNIAK, Pierre Hucl
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Abstract
The present invention is directed to wheat plants having increased resistance to an imidazolinone herbicide. More particularly, the present invention includes wheat plants containing one or more IMI nucleic acids such as a Teal IMI cultivar. The nucleic acids are preferably located on or derived from different genomes. The present invention also includes seeds produced by these wheat plants and methods of controlling weeds in the vicinity of these wheat plants.
Claims28
A wheat plant, wherein the wheat plant was obtained by a process comprising crossing a plant of line Teal11A with a plant of another wheat line, a representative sample of seed of the line Teal11A having been deposited with American Type Culture Collection (ATCC) under Patent Deposit Designation Number PTA-3953 and the wheat plant comprises a Teal11A Imi2 nucleic acid, said Teal11A Imi2 nucleic acid comprising a polynucleotide sequence encoding an IMI polypeptide having a serine to asparagine substitution in Domain E, said Imi2 nucleic acid being that of the B genome, and said wheat plant exhibiting increased tolerance to an imidazolinone herbicide as compared to that of a wild-type wheat plant.
A wheat seed of a wheat plant wherein the wheat plant was obtained by a process comprising crossing a plant of line Teal11A with a plant of another wheat line, a representative sample of seed of the line Teal11A having been deposited with American Type Culture Collection (ATCC) under Patent Deposit Designation Number PTA-3953 and the wheat seed comprises a Teal11A Imi2 nucleic acid, said Teal11A Imi2 nucleic acid comprising a polynucleotide sequence encoding an IMI polypeptide having a serine to asparagine substitution in Domain E, said Imi2 nucleic acid being that of the B genome, and a wheat plant grown from said seed exhibiting increased tolerance to an imidazolinone herbicide as compared to that of a wild-type wheat plant.
A method for controlling weeds in the vicinity of a wheat plant comprising:
- a. providing a wheat plant, wherein said plant was obtained by a process comprising crossing a plant of line Teal11A, a representative sample of seed of the line having been deposited with American Type Culture Collection (ATCC) under Patent Deposit Designation Number PTA-3953, with a plant of another wheat line and the wheat plant comprises a Teal11A Imi2 nucleic acid, said Teal11A Imi2 nucleic acid comprising a polynucleotide sequence encoding an IMI polypeptide having a serine to asparagine substitution in Domain E, said polynucleotide sequence is that of the B genome, and said plant having increased tolerance to an imidazolinone herbicide as compared to that of a wild-type wheat;
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- b. applying an herbicidal composition comprising an imidazolinone herbicide to the wheat plant and the vicinity thereof, thereby controlling weeds.
An isolated Imi2 nucleic acid, wherein said Imi2 nucleic acid is the Imi2 from a wheat plant, or from a seed thereof, the wheat plant having been obtained by a process comprising crossing a plant of line Teal11A, a representative sample of seed of the line having been deposited with American Type Culture Collection (ATCC) under Patent Deposit Designation Number PTA-3953, with a plant of another wheat line, wherein the Imi2 nucleic acid of said wheat plant or seed is a Teal11A Imi2 nucleic acid, said Teal11A Imi2 nucleic acid comprising a polynucleotide sequence encoding an IMI polypeptide having a serine to asparagine substitution in Domain E, said polynucleotide sequence is that of the B genome, and said plant having increased tolerance to an imidazolinone herbicide as compared to that of a wild-type wheat.
Dependencies are inferred from the claim text.