Cited by 3Genetically Modified Organisms ResearchInsect-Plant Interactions and ControlInsect Resistance and Genetics

The bean α-amylase inhibitor αAI-1 in genetically modified chickpea seeds does not harm parasitoid wasps

Lüthi, Christoph, Álvarez‐Alfageme, Fernando, Romeis, Jörg·2018·Pest Management Science

Abstract

BACKGROUND: Legumes have been genetically engineered to express α-amylase inhibitor 1 (αAI-1) from common bean in their seeds. Whereas the genetically modified (GM) seeds are immune to multiple bruchid pest species, the cosmopolitan bruchid Acanthoscelides obtectus is tolerant to αAI-1 and their larvae develop normally inside the seeds. Hymenopteran bruchid parasitoids, the most important natural enemies of bruchids, might thus be exposed to αAI-1 when attacking A. obtectus larvae developing inside GM seeds. Exposure might reduce parasitoid fitness, resulting in a decline in the natural control of A. obtectus, and thus promote the spread of this pest. We investigated the impact of the presence of αAI-1 in legume seeds on parasitoid fitness in tritrophic experiments with αAI-1 GM or non-GM chickpea seeds, A. obtectus, and three parasitoid species. Additionally, we investigated the exposure of parasitoids to αAI-1 using a fourth, highly sensitive parasitoid species. RESULTS: Parasitoid fitness was not affected when A. obtectus was used in GM chickpea seeds as hosts, and this lack of effects was probably attributable to the fact that exposure of the parasitoids to αAI-1 was negligible. CONCLUSION: We conclude that the release of GM chickpeas containing αAI-1 should not harm this important group of non-target insects. © 2018 Society of Chemical Industry.

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Crossref · 10.1002/ps.4919

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37 of 37 references verified0 citation errors · 0 not checkable

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  • αAI-1 containing GE seeds cause no harm to their parasitoids in tritrophic studies.

    “Despite the fact that the alphaamylases of hymenopteran parasitoids of bruchids are also susceptible to this particular inhibitor (Álvarez-Alfagemen et al., 2012), tritrophic studies have shown that the αAI-1 containing GE seeds cause no harm to their parasitoids (Lüthi et al., 2013b(Lüthi et al., , 2018)).”

    From Genetically engineered crops help support conservation biological control (2019) · cites this paper as Lüthi et al., 2018

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Authors
Lüthi, C., Álvarez‐Alfageme, F., & Romeis, J.
Affiliations
Agroscope (CH)
Corresponding author
Romeis, Jörg
Venue
Pest Management Science
Publisher
Wiley
Published
2018-06-08
Volume
74
Issue
11
Pages
2444-2449
ISSN
  • 1526-498X (ISSN-L)
  • 1526-4998
OpenAlex
W2794103702
Cited by
3
References
37
Citations by year
2025: 1 · 2021: 1 · 2018: 1
FWCI
0.44
Type
journal article
Language
en
Open access
closed
Locations
  • Pest Management Science (publishedVersion)
  • PubMed (publishedVersion)
Funders
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Genetically Modified Organisms Research
  • Life Sciences › Agricultural and Biological Sciences › Insect Science › Insect-Plant Interactions and Control
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Insect Resistance and Genetics
Keywords
Acanthoscelides obtectus, bruchid beetles, parasitoid wasps, non-target effects, tritrophic interactions, parasitoid fitness, natural enemies
MeSH terms
alpha-Amylases, Animals, Coleoptera, Host-Parasite Interactions, Larva, Plant Proteins, Seeds, Wasps, Cicer, Plants, Genetically Modified, Genetic Fitness

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