Abbas Sohail, Alam Aleena, Ahmad Bilal, Abbas Muneer, Feng Xiao, Huang Jingxuan, Khan Khalid Ali, Ghramh Hamed A, Muhammad Shakeel, Ali Jamin, Schilthuizen Menno, Romano Donato, Chen Ri-Zhao
College of Plant Protection, Jilin Agricultural University, Changchun, Jilin, PR China.
Arid Zone Research Institute, Bhakkar, Punjab, Pakistan.
Environ Entomol. 2025 Jun 18;54(3):442-453. doi: 10.1093/ee/nvaf030.
Lateralization in mating behavior is increasingly recognized as a significant trait in insect species, yet its influence associated with gender, and sexual experience in Ostrinia furnacalis (Guenée) remains poorly understood. This study examines how lateralized mating behaviors, gender, and sexual experience interact to influence mating success and efficiency in O. furnacalis. We conducted controlled mating trials to assess how gender and sexual experience shape lateralized directional approaches (eg right- or left-biased) and turnings (eg 180° right- or left-biased) across the pre-copulatory, copulatory, and post-copulatory phases. Our results indicated that, in terms of gender, males were more likely to approach females, whereas females rarely initiated approaches, with both approaches each other simultaneously being infrequent. Both virgin and experienced males showed higher right-biased directional approaches than the front approaches to the females with more left-biased directional turns for successful intromissive copulation. Experienced males showed greater mating success than virgins. In contrast, experienced females exhibited lower mating success and longer post-copulatory interactions compared to virgin females, particularly duration of copulation. Post-copulatory interactions showed that antennal touching occurred more frequently in the experienced pairs. This study is the first to demonstrate the combined influence of gender and sexual experience on lateralized mating dynamics, with male courtship behaviors linked to learning processes. The results indicate that sexual experience, potentially involving learning and memory processes, significantly enhances mating efficiency and fitness in O. furnacalis. This research provides a more nuanced understanding of lateralized mating behaviors in O. furnacalis, with implications for refining pest management strategies in agricultural environments.
交配行为的偏侧化越来越被认为是昆虫物种的一个重要特征，然而其与亚洲玉米螟（Guenée）的性别及性经验之间的关联仍知之甚少。本研究考察了偏侧化的交配行为、性别和性经验如何相互作用，以影响亚洲玉米螟的交配成功率和效率。我们进行了控制性交配试验，以评估性别和性经验如何在交配前、交配中和交配后阶段塑造偏侧化的定向接近（如右偏或左偏）和转向（如180°右偏或左偏）。我们的结果表明，在性别方面，雄性更有可能接近雌性，而雌性很少主动接近，双方同时接近的情况也很少见。处女雄虫和有经验的雄虫在接近雌性时都表现出更高的右偏定向接近，而在成功插入式交配时，转向更多地向左偏。有经验的雄虫比处女雄虫表现出更高的交配成功率。相比之下，有经验的雌虫与处女雌虫相比，交配成功率较低，交配后互动时间更长，尤其是交配持续时间。交配后的互动表明，触角接触在有经验的配对中更频繁发生。本研究首次证明了性别和性经验对偏侧化交配动态的综合影响，其中雄性求偶行为与学习过程有关。结果表明，性经验可能涉及学习和记忆过程，显著提高了亚洲玉米螟的交配效率和适应性。这项研究为亚洲玉米螟的偏侧化交配行为提供了更细致入微的理解，对完善农业环境中的害虫管理策略具有启示意义。
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