Nucleic acid molecules for conferring insecticidal properties in plants

Patent metadata

Field	Value
Publication number	US-12545926-B2
Application number	US-202218289473-A
Country	US
Kind code	B2
Filing date	May 3, 2022
Priority date	May 4, 2021
Publication date	Feb 10, 2026
Grant date	Feb 10, 2026

Abstract

The present disclosure is related to a nucleic acid sequence which confers expression of insecticidal proteins when introduced into a cell, as well as related compositions and methods of use thereof. In some aspects, the disclosure provides a plant comprising the nucleic acid sequence.

First claim

What is claimed is:

1 . A recombinant nucleic acid molecule comprising a nucleic acid sequence that is at least 99% identical to SEQ ID NO: 1, wherein the nucleic acid sequence encodes a polypeptide comprising the sequence of SEQ ID NO: 4.

2 . A transgenic host cell comprising the nucleic acid molecule of claim 1 .

3 . The transgenic host cell of claim 2 , wherein the cell is a bacterial cell or a plant cell.

4 . The transgenic host cell of claim 3 , wherein the cell is a bacterial cell and the bacterial cell is an Escherichia coli, Bacillus thuringiensis, Bacillus subtilis, Bacillus megaterium, Bacillus cereus, Agrobacterium spp. or Pseudomonas spp. cell.

5 . The transgenic host cell of claim 3 , wherein the cell is a plant cell and the plant cell is a maize, sorghum, wheat, sunflower, tomato, crucifers, oat, turf grass, pasture grass, peppers, potato, cotton, rice, soybean, sugarcane, sugar beet, tobacco, barley, or oilseed rape cell.

6 . The transgenic host cell of claim 5 , wherein the plant cell is a maize cell.

7 . A transgenic plant or plant part comprising the nucleic acid molecule of claim 1 .

8 . The transgenic plant of claim 7 , wherein the plant is a monocot plant.

9 . The transgenic plant of claim 7 , wherein the plant is a dicot plant.

10 . The transgenic plant or plant part of claim 7 , wherein:
a) the plant is selected from the group consisting of maize, sorghum, wheat, sunflower, tomato, crucifers, oat, turf grass, pasture grass, peppers, potato, cotton, rice, soybean, sugarcane, sugar beet, tobacco, barley, and oilseed rape, or b) the plant part is a seed.

11 . A progeny or propagule of any generation of the plant of claim 7 , wherein the progeny or propagule comprises the nucleic acid molecule.

12 . A method of producing a transgenic plant with enhanced insecticidal properties, comprising introducing the nucleic acid molecule of claim 1 into a plant thereby producing a transgenic plant, wherein the nucleic acid molecule expresses effective insect-controlling amounts of protein.

13 . A method of producing a transgenic plant with enhanced insecticidal properties, comprising the steps of:
a) providing the nucleic acid molecule of claim 1 ; b) introducing into a plant, tissue culture, or a plant cell the nucleic acid molecule of step (a) to obtain a transformed plant, transformed tissue culture, or a transformed cell having enhanced insecticidal properties; and c) growing the transformed plant or regenerating a transformed plant from the transformed tissue culture or transformed plant cell, so a transgenic plant with enhanced insecticidal properties is produced.

14 . A method of producing transgenic seed, comprising the steps of:
a) obtaining a fertile transgenic plant of claim 11 ; and b) growing the plant under appropriate conditions to produce the transgenic seed.

15 . A method of producing progeny of any generation of a fertile transgenic plant with enhanced insecticidal properties, comprising the steps of:
a) obtaining a fertile transgenic plant with enhanced insecticidal properties comprising the nucleic acid molecule of claim 1 ; b) collecting transgenic seed from the transgenic plant; c) planting the collected transgenic seed; and d) growing the progeny transgenic plants from the seed, wherein the progeny has enhanced insecticidal properties relative to a non- transformed plant.

16 . A method for producing a transgenic plant with enhanced insecticidal properties, comprising the steps of sexually crossing a first parent plant with a second parent plant, wherein the first or second parent plant is the plant of claim 7 , to produce a first generation progeny plant that comprises the nucleic acid molecule.

17 . A method for producing a transgenic plant with enhanced insecticidal properties, comprising the steps of:
a) sexually crossing a first parent plant with a second parent plant, wherein the first or second parent plant is the plant of claim 7 ; and b) selecting a first generation progeny plant with enhanced insecticidal properties, wherein the selected progeny plant comprises the nucleic acid molecule.

18 . The method of claim 17 , further comprising the steps of:
a) selfing the first generation progeny plant, thereby producing a plurality of second generation progeny plants; and b) selecting from the second generation progeny plants one or more plants with enhanced insecticidal properties, wherein the selected second generation progeny plants comprise the nucleic acid molecule.

19 . A method of controlling a lepidopteran pest comprising feeding the pest a plant or plant part comprising the nucleic acid molecule of claim 1 .

20 . The method of claim 19 , wherein the lepidopteran pest is a Spodoptera frugiperda (fall armyworm) pest.

21 . A method of producing a commodity plant product, the method comprising using the plant of claim 7 to produce said commodity plant product therefrom.

22 . The method of claim 21 , wherein the commodity plant product is a grain, starch, seed oil, syrup, flour, meal, starch, cereal, or protein.

23 . A method comprising introducing a modification into the nucleic acid molecule present in a transgenic host cell of any one of claims 6 to 10 or a transgenic plant of claim 7 , thereby producing a modified transgenic host cell or a modified transgenic plant, wherein said modified transgenic host cell or said modified transgenic plant has insecticidal activity against a lepidopteran pest.

24 . The method of claim 23 , wherein the modification is a deletion, an insertion, a substitution, a duplication, or inversion or a combination thereof.

25 . The method of claim 24 , wherein the modification comprises deletion of a portion or all of a selectable marker coding sequence present in the nucleic acid molecule.

26 . The method of claim 23 , wherein the modification is introduced using a nuclease or homologous recombination, or a combination thereof.

27 . The method of claim 26 , wherein the nuclease is a CRISPR-Cas nuclease.

28 . The method of claim 23 , wherein the method further comprises producing a plant from the modified transgenic host cell and selfing or crossing the plant with another plant, thereby producing a modified transgenic progeny plant.

29 . The method of claim 23 , wherein the method further comprises selfing or crossing the modified transgenic plant with another plant, thereby producing a modified transgenic progeny plant.

30 . The method of claim 28 , wherein the method further comprises selfing or outcrossing the modified transgenic progeny plant for at least one additional generation.

Assignees

• Syngenta Crop Protection Ag

Inventors

• Zhou Ailing
• Azhakanandam Kasimalai
• Conville Jared
• Zhang Yan

Classifications

• C12Q2600/13

  Plant traits · CPC title

• C12Q1/6895

  for plants, fungi or algae · CPC title

• C07K14/325 Primary

  Bacillus thuringiensis crystal peptides, i.e. delta-endotoxins · CPC title

• A01H6/4684

  Zea mays [maize] · CPC title

• C12N15/8286 Primary

  for insect resistance · CPC title