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瓢虫跗节附着装置的两性异形及其与交配的关系。

Sexual Dimorphism of Tarsal Attachment Devices and Their Relation to Mating in Coccinellidae.

作者信息

Saitta Valerio, Rebora Manuela, Piersanti Silvana, Carboni Marri Giorgia, Masini Paolo, Gorb Elena, Iacovone Alessia, Salerno Gianandrea, Gorb Stanislav

机构信息

Dipartimento di Scienze Agrarie, Alimentari e Ambientali, University of Perugia, Perugia, Italy.

Dipartimento di Scienze Agrarie e Forestali, University of Palermo, Palermo, Italy.

出版信息

J Morphol. 2025 Apr;286(4):e70041. doi: 10.1002/jmor.70041.

DOI:10.1002/jmor.70041
PMID:40181652
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11969132/
Abstract

This study investigates the coevolution of male attachment devices and female elytral morphology in coccinellid beetles, focusing on the sexual dimorphism of claws and adhesive pads. We analyzed 11 species from different tribes with different feeding regime, examining the structure of male and female attachment organs (claws and hairy pads) in relation to the surface structure of female elytra. Our findings show that disco-setae, which enhance adhesion during mating, are present only in males of some species and are localized on the hairy pads of their legs. These setae exhibit morphological adaptations based on the surface structure of female elytra, with larger discoid setal tips in species with smooth elytra and smaller tips in those with hairy elytra. Additionally, male beetles with hairy elytra possess dimorphic claws, which enhance attachment efficiency compared to species with smooth elytra, where claw dimorphism is less pronounced. Our results reveal that sexual dimorphism in hairy pads is more pronounced in larger species, where claw dimorphism is absent, while in smaller species, claw dimorphism alone suffices for effective attachment. These findings contribute to a deeper understanding of the evolutionary dynamics shaping attachment adaptations in Coccinellidae, with implications for reproductive strategies, pest management, and ecological interactions in this diverse beetle family.

摘要

本研究调查了瓢虫科甲虫雄性附着器官与雌性鞘翅形态的协同进化，重点关注爪子和黏附垫的两性异形。我们分析了来自不同食性类群的11个物种，研究了雄性和雌性附着器官（爪子和多毛垫）的结构与雌性鞘翅表面结构的关系。我们的研究结果表明，在交配过程中增强附着力的盘状刚毛仅存在于某些物种的雄性中，且位于它们腿部的多毛垫上。这些刚毛根据雌性鞘翅的表面结构呈现出形态适应性，鞘翅光滑的物种中盘状刚毛尖端较大，鞘翅有毛的物种中尖端较小。此外，鞘翅有毛的雄性甲虫具有二态性爪子，与鞘翅光滑的物种相比，其附着效率更高，而在鞘翅光滑的物种中爪子二态性不太明显。我们的结果表明，多毛垫的两性异形在体型较大的物种中更为明显，这些物种不存在爪子二态性，而在体型较小的物种中，仅爪子二态性就足以实现有效附着。这些发现有助于更深入地理解塑造瓢虫科附着适应性的进化动态，对这个多样化甲虫家族的繁殖策略、害虫管理和生态相互作用具有启示意义。

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Parasitoid attachment ability and the host surface wettability.寄生蜂的附着能力与寄主表面润湿性。
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Morphological and structural characteristics of the elytra reduce impact damage to ladybird beetles.鞘翅的形态和结构特征可减少瓢虫受到的冲击损伤。
J Insect Physiol. 2024 May;154:104630. doi: 10.1016/j.jinsphys.2024.104630. Epub 2024 Mar 2.
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The tight attachment achieved by the male discoidal setae is possibly a counter-adaptation to the grease layer on female integument surfaces in green dock beetles.雄性盘状刚毛实现的紧密附着可能是对绿芜菁体表油脂层的一种反适应。
J R Soc Interface. 2023 Aug;20(205):20230324. doi: 10.1098/rsif.2023.0324. Epub 2023 Aug 16.
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Beetle elytra: evolution, modifications and biological functions.鞘翅目昆虫的翅鞘：演化、变形和生物学功能。
Biol Lett. 2023 Mar;19(3):20220559. doi: 10.1098/rsbl.2022.0559. Epub 2023 Mar 1.
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Effect of Leaf Trichomes in Different Species of Cucurbitaceae on Attachment Ability of the Melon Ladybird Beetle .葫芦科不同物种叶片表皮毛对瓜瓢虫附着能力的影响
Insects. 2022 Dec 5;13(12):1123. doi: 10.3390/insects13121123.
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Evolution of attachment structures in the highly diverse Acercaria (Hexapoda).高度多样化的无翅亚纲（六足亚门）中附着结构的演化。
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New insights into the phylogeny and evolution of lady beetles (Coleoptera: Coccinellidae) by extensive sampling of genes and species.通过广泛采样基因和物种，深入了解瓢虫（鞘翅目：瓢虫科）的系统发育和进化。
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