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Harnessing plant-mediated RNAi for effective management of Phthorimaea absoluta by targeting AChE1 and SEC23 genes
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Harnessing plant-mediated RNAi.pdf
Date
2024-12-01
Author
Hashmi, Muneeb Hassan
Tariq, Haneef
Saeed, Faisal
Demirel, Ufuk
Gökçe, Ayhan
Merzendorfer, Hans
Aksoy, Emre
Bakhsh, Allah
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Tomato production on a global scale is under persistent pressure due to the devastating impact of Phthorimaea absoluta Meyrick (Lepidoptera: Gelechiidae), the South American tomato leaf miner. To combat this devastating pest, we explored the potential of plant-mediated RNA interference (RNAi) as a novel strategy for its management. Using transgenic techniques, we developed RNAi constructs (p35S::dsAChE1, p35S::dsSEC23) targeting crucial genes, AChE1 and SEC23, in P. absoluta. These genes play pivotal roles in insect physiology and development. The transformation of tomato cultivar Rio Grande was carried out with these RNAi constructs using Agrobacterium tumefaciens. The results demonstrated a significant reduction in transcript levels of both AChE1 and SEC23 in P. absoluta. Silencing AChE1 resulted in substantial mortality rates, reduced larval weight gain, and deformities, highlighting its pivotal role in insect survival. SEC23 gene silencing also induced mortality and influenced insect physiology. Furthermore, we explored the susceptibility of AChE1 to organophosphate insecticides, revealing its relevance in insecticide susceptibility. These findings support the potential of AChE1 and SEC23 as valuable targets for RNAi-based control of P. absoluta for the first time, providing multifaceted insights into insect physiology and insecticide susceptibility, thereby offering valuable insights for the development of effective strategies to mitigate the impact of this destructive pest.
Subject Keywords
Agrobacterium tumefaciens
,
Gelechiidae
,
Mortality
,
Rio Grande
,
Transcript level
URI
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85201777640&origin=inward
https://hdl.handle.net/11511/111179
Journal
Plant Stress
DOI
https://doi.org/10.1016/j.stress.2024.100569
Collections
Department of Biology, Article
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M. H. Hashmi et al., “Harnessing plant-mediated RNAi for effective management of Phthorimaea absoluta by targeting AChE1 and SEC23 genes,”
Plant Stress
, vol. 14, pp. 0–0, 2024, Accessed: 00, 2024. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85201777640&origin=inward.