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Title: A transgenic approach for controlling Lygus in cotton

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms12213· OSTI ID:1267458
 [1];  [1];  [2];  [1];  [1];  [1];  [1];  [1];  [3];  [1];  [1];  [1];  [1]
  1. Monsanto Company, Chesterfield, MO (United States)
  2. Monsanto Company, Chesterfield, MO (United States); Visterra Inc, Cambridge, MA (United States)
  3. Cornell Univ., Ithaca, NY (United States); Monsanto Company, Chesterfield, MO (United States)

Lygus species of plant-feeding insects have emerged as economically important pests of cotton in the United States. These species are not controlled by commercial Bacillus thuringiensis (Bt) cotton varieties resulting in economic losses and increased application of insecticide. Previously, a Bt crystal protein (Cry51Aa2) was reported with insecticidal activity against Lygus spp. However, transgenic cotton plants expressing this protein did not exhibit effective protection from Lygus feeding damage. Here we employ various optimization strategies, informed in part by protein crystallography and modelling, to identify limited amino-acid substitutions in Cry51Aa2 that increase insecticidal activity towards Lygus spp. by >200-fold. Transgenic cotton expressing the variant protein, Cry51Aa2.834_16, reduce populations of Lygus spp. up to 30-fold in whole-plant caged field trials. One transgenic event, designated MON88702, has been selected for further development of cotton varieties that could potentially reduce or eliminate insecticide application for control of Lygus and the associated environmental impacts.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE
OSTI ID:
1267458
Journal Information:
Nature Communications, Vol. 7, Issue 1; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 50 works
Citation information provided by
Web of Science

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Cited By (10)

First transgenic trait for control of plant bugs and thrips in cotton: Bt cotton controls plant bugs and thrips journal December 2018
Novel mechanism of thrips suppression by Cry51Aa2.834_16 Bt toxin expressed in cotton journal November 2019
Computational and biological characterization of fusion proteins of two insecticidal proteins for control of insect pests journal March 2018
Transgenic crops for the agricultural improvement in Pakistan: a perspective of environmental stresses and the current status of genetically modified crops journal November 2019
Opportunities for Microbial Control of Pulse Crop Pests journal July 2018
Behavioral Responses of Thrips (Thysanoptera: Thripidae) and Tarnished Plant Bug (Hemiptera: Miridae) to a New Bt Toxin, Cry51Aa2.834_16 in Cotton journal March 2019
Recent progress on the interaction between insects and Bacillus thuringiensis crops journal January 2019
Transgenic cotton expressing Cry10Aa toxin confers high resistance to the cotton boll weevil
  • Ribeiro, Thuanne Pires; Arraes, Fabricio Barbosa Monteiro; Lourenço-Tessutti, Isabela Tristan
  • Plant Biotechnology Journal, Vol. 15, Issue 8 https://doi.org/10.1111/pbi.12694
journal March 2017
Toxicity of Bacillus thuringiensis-Derived Pesticidal Proteins Cry1Ab and Cry1Ba against Asian Citrus Psyllid, Diaphorina citri (Hemiptera) journal March 2019
Field Study Investigating Cry51Aa2.834_16 in Cotton for Control of Thrips (Thysanoptera: Thripidae) and Tarnished Plant Bugs (Hemiptera: Miridae) journal August 2018