Identification and Expression Profiles of Chemosensory Genes in the Antennal Transcriptome of Protaetia brevitarsis (Coleoptera: Scarabaeidae)

文献类型： 外文期刊

第一作者： Zhao, Shi-Hang

作者： Zhao, Shi-Hang;Gao, Qi;Yu, Rui-Tao;Zhou, Nan;Xu, Guo-Liang;Zhao, Shi-Hang;Yu, Rui-Tao;Zhou, Nan;Xu, Guo-Liang;Yue, Yang;Yang, Zhao-Hui

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关键词： Protaetia brevitarsis; antennal transcriptome; chemosensory genes; tissue-specific expression

期刊名称：INSECTS （ 影响因子：2.9； 五年影响因子：3.3 ）

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年卷期： 2025 年 16 卷 6 期

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收录情况： SCI

摘要： Chemosensory systems play a pivotal role in insect survival and reproduction by mediating the detection of volatile organic compounds in the environment. Protaetia brevitarsis (Coleoptera: Scarabaeidae), a phytophagous pest widely distributed across East Asia, poses a significant threat to agro-horticultural systems through crop damage. We conducted antennal transcriptome sequencing of adult beetles and identified 117 chemosensory-related genes, including 66 odorant receptors (ORs), 20 ionotropic receptors, 10 gustatory receptors, 13 odorant-binding proteins (OBPs), four chemosensory proteins, and four sensory neuron membrane proteins. Tissue-specific expression profiling revealed the antennal enrichment of five PbreOBP genes and twenty-three ORs. Notably, sexual dimorphism was observed in OR expression patterns. PbreOR1/6/17/18/21/22/30/32 exhibited male-biased antennal expression, whereas PbreOR25/26/29/38/41/44/61 demonstrated female-biased antennal expression, indicating their potential involvement in sex-specific behaviors, such as pheromone detection and oviposition site selection. A comprehensive description of the antenna chemosensory-related genes of P. brevitarsis has deepened our understanding of the olfactory mechanisms in coleopteran insects. This study also provides a basis for understanding the molecular mechanisms underlying olfaction in P. brevitarsis.

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