Transcriptomic analysis of the insecticidal activities of methyl benzoate against red flour beetle Tribolium castaneum (Herbst) larvae

红粉甲虫 生物 转录组 小桶 幼虫 熏蒸 昆虫 代谢途径 基因 植物 基因表达 生物化学 生态学
作者
Lei Wang,Yujie Lu,Xueqing Geng
出处
期刊:International journal of pest management [Informa]
卷期号:: 1-11
标识
DOI:10.1080/09670874.2023.2229781
摘要

Methyl benzoate (MB) is a common component of floral scents released by many plants. Recent research showed that MB was an alternative insecticide to control insect pests. However, the molecular mechanisms of insect pests in responses to MB are largely unknown, which limits the future applications of this promising insecticidal candidate. In this study, the total transcriptomic analysis for red flour beetle larvae after MB fumigation was performed. Of the 430 identified differentially expressed genes, 197 were upregulated and 233 were downregulated. GO and KEGG pathway enrichment were used to interpret gene classification/function and metabolic/signaling pathways, respectively. And we performed RT-qPCR to validate expressional profiles of identified DEGs. Genes that are involved in energy metabolism, xenobiotic metabolism, and digestive enzymes were shown to be differentially expressed, suggesting that MB have an impact on these physiological processes. This research will enrich our knowledge about the mechanisms of MB-fumigation response genes for stored-product pests. A better understanding of molecular response to MB will facilitate future applications to control stored-product pests.
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