Methods of using non-plant insecticidal lipase encoding nucleic acids in transgenic plants
View Patent ↗Methods of creating and enhancing insect resistance in plants by introducing non-plant lipases into plants are provided. Plants with enhanced insect resistance and seed from plants thereof are provided. DNA sequences encoding insecticidal lipases and insecticidal lipase gene products that are useful in the practice of this invention are also provided. The compositions and methods of the invention may be used in a variety of agricultural systems for controlling pests, including propagating lineages of insect-resistant crops and targeting expression of these insecticidal lipases to plant organs that are particularly susceptible to infestation, such as roots and leaves.
1. A method for creating or enhancing insect resistance in a plant, said method comprising stably introducing into said plant a DNA construct comprising a nucleotide sequence encoding a non-plant lipase operably linked to a promoter that drives expression in a plant cell, wherein said nucleotide sequence is selected from the group consisting of:
a) the nucleotide sequence set forth in SEQ ID NO: 7;
b) a nucleotide sequence comprising at least 95% sequence identity to the sequence set forth in SEQ ID NO: 7, wherein the nucleotide sequence encodes a polypeptide having insecticidal activity;
c) a nucleotide sequence encoding a polypeptide comprising the amino acid sequence set forth in SEQ ID NO: 8;
d) a nucleotide sequence encoding a polypeptide having at least 95% sequence identity to the amino acid sequence set forth in SEQ ID NO: 8, wherein said polypeptide has insecticidal activity; and
e) the nucleotide sequence of any one of preceding items (a) through (d) wherein codon usage is optimized for expression in a plant.
2. The method of claim 1 , wherein said promoter is selected from the group consisting of a constitutive promoter, an inducible promoter, and a tissue-preferred promoter.
3. The method of claim 2 , wherein said tissue-preferred promoter is selected from the group consisting of a root-preferred promoter, a leaf-preferred promoter, and a seed-preferred promoter.
4. The method of claim 1 , wherein the DNA construct is introduced through breeding.
5. The method of claim 1 , wherein the DNA construct is introduced through transformation.
6. The method of claim 1 , wherein said plant is a monocot or a dicot.
7. The method of claim 1 , wherein said plant is selected from the group consisting of corn, oat, soybean, wheat, rye, rice, canola, Brassica sp., sorghum, sunflower, barley, millet, alfalfa, cotton, peanut, flax, safflower, palm, olive, castor bean, and coconut.
8. The method of claim 1 , wherein said non-plant lipase is a polypeptide having an amino acid sequence selected from the group consisting of:
a) the amino acid sequence set forth in set forth in SEQ ID NO: 8; and
b) an amino acid sequence comprising at least 95% sequence identity to the sequence set forth in SEQ ID NO:8, wherein the polypeptide has insecticidal activity.
9. The method of claim 8 , wherein said plant is a monocot or a dicot.
10. The method of claim 8 , wherein said plant is selected from the group consisting of corn, oat, soybean, wheat, rye, rice, canola, Brassica sp., sorghum, sunflower, barley, millet, alfalfa, cotton, peanut, flax, safflower, palm, olive, castor bean, and coconut.