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Differential protein expression in the susceptible and resistant Myzus persicae (Sulzer) to imidacloprid
JianYu Meng1, ChangYu Zhang2, XingJiang Chen1
1Guizhou Tobacco Science Research Institute, Guiyang 550081, China.
Abstract:
Myzus persicae, a serious economic agricultural pest, has developed resistance to imidacloprid (IMI), which was widely used to control this aphid worldwide. To gain a better understanding of the mechanisms of IMI resistance in M. persicae, we carried out a comparative proteomic analysis. Total proteins of the IMI-susceptible and resistant strains were extracted and separated by two-dimensional gel electrophoresis. More than 1300 protein spots were reproducibly detected, including 14 that were more abundant and 14 less abundant. Mass spectrometry analysis and database searching helped us to identify 25 differentially abundant proteins. The identified proteins were categorized into several functional groups including signal transduction, RNA processing, protein processing, transport processing, stress response, metabolisms, and cytoskeleton structure, etc. This study is the first analysis of differentially expressed proteins in IMI-susceptible and resistant M. Persicae, and gives new insights into the mechanisms of IMI resistance in M. persicae.
Insights
Myzus persicae has developed resistance to imidacloprid (IMI). This study identified 25 differentially abundant proteins, offering new insights into IMI resistance mechanisms in this agricultural pest.
Area of Science:
- Agricultural Entomology
- Proteomics
- Insecticide Resistance
Background:
- Myzus persicae is a significant agricultural pest globally.
- Widespread use of imidacloprid (IMI) has led to resistance in M. persicae populations.
- Understanding the molecular basis of IMI resistance is crucial for effective pest management.
Purpose of the Study:
- To investigate the proteomic changes associated with imidacloprid (IMI) resistance in Myzus persicae.
- To identify specific proteins involved in the mechanisms of IMI resistance.
Main Methods:
- Comparative proteomic analysis of IMI-susceptible and IMI-resistant M. persicae strains.
- Two-dimensional gel electrophoresis (2D-PAGE) for protein separation.
- Mass spectrometry (MS) and database searching for protein identification.
Main Results:
- Over 1300 protein spots were detected, with 25 proteins showing differential abundance between susceptible and resistant strains.
- Identified proteins are involved in diverse functions including signal transduction, RNA and protein processing, transport, stress response, metabolism, and cytoskeleton structure.
- This is the first proteomic analysis of IMI resistance in M. persicae.
Conclusions:
- The study provides novel insights into the complex molecular mechanisms underlying IMI resistance in M. persicae.
- Differentially expressed proteins highlight potential targets for future resistance management strategies.
- Proteomics offers a valuable approach to understanding insecticide resistance evolution in agricultural pests.
