Herbicide resistant sunflower plants
AssigneeAnglo Netherlands Grain B.V.
InventorsCarlos Sala, Mariano Bulos
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Abstract
Sunflower plants having increased resistance to herbicides relative to wild-type sunflower plants are provided. These plants contain a new genetic mutation in the AHAS gene which confers broad-spectrum resistance to AHAS-inhibiting herbicide. An herbicide-tolerant sunflower crop production system and new and powerful weed control option for sunflower growers are provided.
Claims48
A sunflower plant having resistance to an imidazolinone herbicide, a sulfonylurea herbicide, a triazolopyrimidine herbicide, a pyrimidinyloxybenzoate herbicide and mixtures thereof, wherein the oil content of the seed from said plant is greater than 40%.
A sunflower plant having resistance to an imidazolinone herbicide, a sulfonylurea herbicide, a triazolopyrimidine herbicide, a pyrimidinyloxybenzoate herbicide and mixtures thereof, wherein the yield of seed from said plant is more than one tonne per hectare.
A sunflower plant having resistance to an imidazolinone herbicide, a sulfonylurea herbicide, a triazolopyrimidine herbicide, a pyrimidinyloxybenzoate herbicide, and mixtures thereof, wherein said sunflower plant has a single head.
An isolated nucleic acid comprising SEQ ID NO:
- 1
A sunflower plant cell stably transformed with a nucleic acid having the sequence of SEQ ID NO:
- 1.
A transgenic sunflower plant, wherein said plant comprises a transgene comprising SEQ ID NO:
- 1.
An expression cassette comprising a promoter active in sunflower plants operably linked to an isolated nucleic acid encoding a protein comprising the sequence encoded by SEQ ID NO:
- 1.
A sunflower seed, wherein the plant grown from said seed has resistance to an imidazolinone herbicide, a sulfonylurea herbicide, a triazolopyrimidine herbicide, a pyrimidinyloxybenzoate herbicide and mixtures thereof, and wherein the oil content of the seed from said plant is greater than 40%.
A sunflower seed, wherein the plant grown from said seed has resistance to an imidazolinone herbicide, a sulfonylurea herbicide, a triazolopyrimidine herbicide, a pyrimidinyloxybenzoate herbicide and mixtures thereof, and wherein the yield of seed from said plant is more than one tonne per hectare.
A sunflower seed, wherein the plant grown from said seed has resistance to an imidazolinone herbicide, a sulfonylurea herbicide, a triazolopyrimidine herbicide, a pyrimidinyloxybenzoate herbicide, and mixtures thereof, and wherein said sunflower plant has a single head.
A method of improving herbicide tolerance in a sunflower plant comprising:
- transforming a sunflower cell with a construct comprising a nucleic acid sequence encoding the protein encoded by SEQ ID NO:
- 1,
- regenerating the sunflower cell into a sunflower plant;
- and
- selecting fertile flower plants that are vegetative and reproductive resistant to an effective dose of herbicide, wherein the herbicide is selected from the group consisting of a sulfonylurea, an imidazolinone, a pyrimidinyloxybenzoates, a triazolopyrimidine, and mixtures thereof.
A method for producing a herbicide resistant sunflower plant comprising:
- crossing a first sunflower plant having herbicide resistant AHAS activity to a second sunflower plant not having herbicide resistant AHAS activity, wherein said first sunflower plant comprises a nucleic acid encoding the protein encoded by SEQ ID NO:
- 1.
A seed of sunflower cultivar designated RW-B, a representative seed of said sunflower cultivar having been deposited under ATCC Accession No:
- PTA-9176.
A method for producing a RW-B-derived sunflower plant, comprising:
- crossing sunflower line RW-B, representative seed of the sunflower cultivar RW-B having been deposited under ATCC Accession No. PTA-9176, with a second sunflower plant to yield progeny sunflower seed;
- and
- growing the progeny to yield the RW-B-derived sunflower plant.
Dependencies are inferred from the claim text.