Transcriptomic and Metatranscriptomic Analyses Provide New Insights into the Response of the Pea Aphid Acyrthosiphon pisum (Hemiptera: Aphididae) to Acetamiprid
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View abstract on PubMed
Summary
This summary is machine-generated.Pea aphids adapted to acetamiprid insecticide by altering metabolic pathways and potentially thickening their protective cuticle. These findings offer new strategies for managing aphid resistance to pesticides.
Area Of Science
- Entomology
- Insecticide Resistance
- Genomics
- Microbiome Analysis
Background
- Acetamiprid, a neonicotinoid insecticide, is widely used for aphid control in agriculture.
- Aphid resistance to acetamiprid is increasing, but the underlying genetic and molecular mechanisms remain unclear.
- Understanding adaptation mechanisms is crucial for developing sustainable pest management strategies.
Purpose Of The Study
- To investigate the molecular mechanisms of acetamiprid adaptation in the pea aphid, *Acyrthosiphon pisum*.
- To identify candidate genes and microbial shifts associated with reduced susceptibility to acetamiprid.
- To provide insights into the evolution of insecticide resistance in agricultural pests.
Main Methods
- Transcriptome and metatranscriptome sequencing of acetamiprid-selected (RS) and non-selected (SS) pea aphid strains.
- Differential gene expression analysis to identify candidate genes involved in adaptation.
- Microbiome profiling using metatranscriptomic data to detect shifts in microbial communities.
Main Results
- Identification of 14,858 genes and 4,938 new transcripts in the pea aphid.
- Upregulation of genes involved in fatty acid metabolism and epidermal wax synthesis (e.g., FAR, ACSF2) in the resistant strain.
- Subtle shifts in the pea aphid microbiome were observed in the resistant strain.
Conclusions
- Adaptation to acetamiprid in pea aphids involves significant metabolic reprogramming, particularly in pathways related to cuticle synthesis.
- Increased synthesis of epidermal wax components may contribute to a thicker protective layer, enhancing resistance.
- Microbiome alterations may play a role in the adaptation process, warranting further investigation for integrated pest management.
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