Bacillus thuringiensis crystal polypeptides, polynucleotides, and compositions thereof
AssigneePioneer Hi-Bred International, Inc.
InventorsDavid Cerf, Ruth Cong, Michael Freeman, Kevin E. McBride, Takashi Yamamoto
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Abstract
The present invention provides insecticidal polypeptides related to shuffled Bacillus thuringiensis Cry1 polypeptides. Nucleic acids encoding the polypeptides of the invention are also provided. Methods for using the polypeptides and nucleic acids of the invention to enhance resistance of plants to insect predation are encompassed.
Claims26
An isolated nucleic acid molecule comprising the nucleotide sequence of SEQ ID NO:
- 17.
A transgenic plant having stably incorporated in its genome a transgene, wherein said transgene comprises a polynucleotide operably linked to a promoter functional in a plant cell, and wherein the polynucleotide comprises at least one of
- a. a polynucleotide comprising the nucleotide sequence of SEQ ID NO:
- 17;
- b. a polynucleotide comprising a nucleotide sequence that encodes the amino acid sequence of SEQ ID NO:
- 18;
- or
- c. a polynucleotide that encodes a polypeptide having insecticidal activity and at least 99% sequence identity to the amino acid sequence of SEQ ID NO:
- 18.
A method for producing a plant with increased insect resistance, the method comprising:
- a. introducing into plant cells a construct comprising a polynucleotide encoding an insecticidal polypeptide operably linked to a promoter functional in plant cells to yield transformed plant cells, and wherein the polynucleotide encoding the insecticidal polypeptide is selected from the group consisting of:
- i. a polynucleotide that encodes the amino acid sequence of SEQ ID NO:
- 18;
- ii. a polynucleotide comprising the nucleotide sequence of SEQ ID NO:
- 17;
- and
- (iii) a polynucleotide that encodes a polypeptide having insecticidal activity and at least 99% sequence identity to the amino acid sequence of SEQ ID NO:
- 18;
- and
- b. regenerating a transgenic plant from said transformed plant cells, wherein said insecticidal polypeptide is expressed at levels sufficient to increase insect resistance in said transgenic plant as compared to a control plant.
An isolated polynucleotide comprising a member selected from the group consisting of:
- a. a nucleotide sequence that encodes the amino acid sequence set forth in SEQ ID NO:
- 18;
- and
- b. a nucleotide sequence that encodes a polypeptide having insecticidal activity and at least 99% sequence identity to the amino acid sequence set forth in SEQ ID NO:
- 18.
Dependencies are inferred from the claim text.