Transcriptome Analysis Reveals the Potential Antioxidant Defense Mechanisms of Myzus persicae in Response to UV-B Stress

Abstract

Background: As an environmental stress factor, ultraviolet-B (UV-B) radiation directly affects the growth and development of Myzus persicae. Excessive UV-B stress leads to DNA, membrane lipid, and protein damage by the production of reactive oxygen species. However, M. persicae can adaptively respond to such environmental stress by activating the relevant mechanisms in the body. How M. persicae responds to UV-B stress and the molecular mechanisms underlying this adaptation remain unknown. Results: Here, we compared and analyzed transcriptome data for M. persicae following exposure to a light-emitting diode fluorescent lamp and UV-B radiation for 30 min. We identified 758 significant differentially expressed genes (DEGs) following exposure to UV-B stress, including 423 upregulated and 335 downregulated genes. In addition, enrichment analysis using the Gene Ontology and Kyoto Encyclopedia of Genes and Genomes databases illustrated that these DEGs are associated with antioxidation and detoxification, metabolic and protein turnover, immune response, and stress signal transduction. Simultaneously, these DEGs are closely related to the adaptability to UV-B stress.Conclusions: Our results suggest that UV-B stress is associated with a wide range of physiological effects in M. persicae. Our research can raise awareness of the mechanisms of insect responses to UV-B stress.

Transcriptome Analysis of Myzus persicae to UV-B Stress

“…We thank Charlesworth Group ( https://www.researchsquare.com/article/rs-8935/v1 ) for editing a draft of this manuscript. This manuscript has been released as a pre-print at research square ( Yang et al 2019 ). This research was supported by the National Natural Science Foundation of China (grant number 31460483), Guizhou Science Technology Foundation (J[2011]2135), Guizhou Tobacco Company Program (2021XM09, 201937), and the Guangdong Province Science and Technology Special Fund Project (2019A103009).…”