Identification and Functional Characterization of an Odorant Receptor Expressed in the Genitalia of Helicoverpa armigera

文献类型： 外文期刊

第一作者： Liu, Weihao

作者： Liu, Weihao;Liu, Weihao;Sun, Dongdong;Wang, Xiaoqing;Wang, Zhiqiang;Liu, Yang

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关键词： Helicoverpa armigera; genitalia; sensilla; olfactory receptor; scanning electron micrograph

期刊名称：AGRICULTURE-BASEL （ 影响因子：3.3； 五年影响因子：3.5 ）

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年卷期： 2024 年 14 卷 7 期

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收录情况： SCI

摘要： Olfaction is critical for guiding the physiological activities of insects, with antennae being the primary olfactory organs. However, recent evidence suggests that other tissues may also participate in olfactory recognition. Among these, the genitalia of moths have received attention due to their roles in mating and oviposition. Sensilla and odorant receptors (ORs) in moth genitalia highlight the potential olfactory function of these structures. In this study, we examined the olfactory sensing capacity of the genitalia in Helicoverpa armigera by analyzing their structure in males and females and characterizing the expressed ORs. Scanning electron microscopy uncovered many sensilla distributed throughout the male and female genitalia. Transcriptome sequencing identified 20 ORs in the genitalia, with HarmOR68 exhibiting significant responses to methyl esters: methyl benzoate and salicylate. Our findings provide theoretical evidence that H. armigera genitalia may have significant olfactory perception functions.

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