Cited by 66Insect Resistance and GeneticsInsect-Plant Interactions and ControlGenetically Modified Organisms Research

RNAi-mediated resistance to whitefly (Bemisia tabaci) in genetically engineered lettuce (Lactuca sativa)

Ibrahim, Abdulrazak B., Monteiro, Tatiane R., Cabral, Glaucia B., Aragão, Francisco J. L.·2017·Transgenic Research

Abstract

RNA interference (RNAi)-based transgenic technologies have evolved as potent biochemical tools for silencing specific genes of plant pathogens and pests. The approach has been demonstrated to be useful in silencing genes in insect species. Here, we report on the successful construction of RNAi-based plasmid containing an interfering cassette designed to generate dsRNAs that target a novel v-ATPase transcript in whitefly (Bemisia tabaci), an important agricultural pest in tropical and sub-tropical regions. The presence of the transgene was confirmed in T 0 and T 1 generations of transgenic lettuce lines, segregating in a Mendelian fashion. Seven lines were infested with whiteflies and monitored over a period of 32 days. Analysis of mortality showed that within five days of feeding, insects on transgenic plants showed a mortality rate of 83.8-98.1%. In addition, a reduced number of eggs (95 fold less) was observed in flies feeding on transgenic lettuce plants than insects on control lines. Quantitative reverse transcription PCR showed decreased expression level of endogenous v-ATPase gene in whiteflies feeding on transgenic plants. This technology is a foundation for the production of whitefly-resistant commercial crops, improving agricultural sustainability and food security, reducing the use of more environmentally aggressive methods of pest control.

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Crossref · 10.1007/s11248-017-0035-0

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52 of 52 references verified0 citation errors · 0 not checkable

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  • RNAi can target hemipteran pests, including phloem-feeders, that have not yet been targeted by Bt proteins.

    “What makes the technology interesting is the fact that one can also target hemipteran pests (including phloem-feeders) that have not yet been targeted by Bt proteins (Baum and Roberts, 2014;Ibrahim et al., 2017).”

    From Genetically engineered crops help support conservation biological control (2019) · cites this paper as Ibrahim et al., 2017

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Authors
Ibrahim, A. B., Monteiro, T. R., Cabral, G. B., & Aragão, F. J. L.
Affiliations
  • Ahmadu Bello University (NG)
  • Universidade de Brasília (BR)
  • Embrapa (BR)
Corresponding author
Aragão, Francisco J. L.
Venue
Transgenic Research
Published
2017-07-15
Volume
26
Issue
5
Pages
613-624
ISSN
  • 0962-8819 (ISSN-L)
  • 1573-9368
OpenAlex
W2735687824
Cited by
66
References
52
Citations by year
2026: 4 · 2025: 10 · 2024: 7 · 2023: 10 · 2022: 11 · 2021: 10 · 2020: 5 · 2019: 4 · 2018: 5
FWCI
1.56
Type
journal article
Language
en
Open access
closed
Locations
  • Transgenic Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Insect Resistance and Genetics
  • Life Sciences › Agricultural and Biological Sciences › Insect Science › Insect-Plant Interactions and Control
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Genetically Modified Organisms Research
Keywords
RNA interference, Bemisia tabaci, whitefly resistance, transgenic lettuce, lettuce, V-ATPase, insect pest control, transgene segregation, insect mortality
MeSH terms
Animals, Genetic Engineering, Hemiptera, Pest Control, RNA, Double-Stranded, Lactuca, Crops, Agricultural, Vacuolar Proton-Translocating ATPases, Plants, Genetically Modified, Disease Resistance

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