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Updated: Feb 5, 2026
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High-Throughput Transcriptome Analysis for Investigating Host-Pathogen Interactions
Published on: March 5, 2022
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Transcriptomic analysis of interactions between Hyphantria cunea larvae and nucleopolyhedrovirus
Lili Sun1, Peng Liu1, Shouhui Sun2
1Department of Forest Protection, College of Forestry, Northeast Forestry University, Harbin, People's Republic of China.
Pest Management Science
|September 20, 2018
Summary
Hyphantria cunea nucleopolyhedrovirus (HcNPV) infection alters gene expression in larvae, impacting innate immunity and hormone regulation. Understanding these insect-virus interactions is key to developing HcNPV as a bio-insecticide.
Area of Science:
- Entomology
- Molecular Biology
- Virology
Background:
- Hyphantria cunea is a significant forest pest.
- Understanding insect-virus interactions is crucial for developing biological control strategies using H. cunea nucleopolyhedrovirus (HcNPV).
Purpose of the Study:
- To investigate the molecular mechanisms underlying the interaction between H. cunea larvae and HcNPV.
- To identify differentially expressed genes (DEGs) in H. cunea larvae upon HcNPV infection.
Main Methods:
- Next-generation sequencing was used to analyze gene expression in HcNPV-infected and uninfected H. cunea larvae.
- Four cDNA libraries were constructed, yielding 76,004 expressed genes.
- Quantitative real-time PCR was employed to validate the expression levels of selected DEGs.
Main Results:
- 272 differentially expressed genes (DEGs) were identified in HcNPV-infected larvae, with 162 up-regulated and 110 down-regulated.
- DEGs were associated with innate immunity, including pattern recognition proteins, heat-shock proteins, and antimicrobial peptides.
- Upregulated genes involved in juvenile hormone (JH) regulation and mitogen-activated protein kinase (MAPK) signaling pathways were identified.
Conclusions:
- The study provides insights into the molecular mechanisms of HcNPV invasion and the anti-viral responses in H. cunea.
- Gene regulation following HcNPV infection can inform the development of HcNPV as a potent bio-insecticide.
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