球蛛属Argiope在行为和形态限制下的精子转移。

IF 3.7 1区 生物学 Q1 ZOOLOGY
Chathuranga Dharmarathne, Donald J McLean, Peter Michalik, M E Herberstein
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引用次数: 0

摘要

精子转移约束是蜘蛛交配系统中常见的现象,受行为和形态因素的影响。在短暂(只有几秒钟)的交配过程中,非运动的、被包裹的精子细胞必须在狭窄的雄性和雌性管道中穿行,所有这些都是在雌性攻击的压力下进行的,包括性同类相食和生殖器损伤。然而,男性和女性生殖器官内部形态对精子转移的影响却很少受到关注。在这项研究中,我们量化了五个物种的雄性精子转移的数量,作为生殖成功的直接衡量标准。我们探讨了精子转移与交配持续时间、精子可用性、两性二态性和雌性攻击性的关系。此外,我们比较精子转移的种内和种间变异通过检查内部雄性和雌性生殖器形态特征。最后,我们讨论在精子转移蜘蛛内部生殖形态的异速。我们的研究结果表明,性同类相食的发生是影响Argiope属精子转移的重要因素。我们观察到精子导管宽度和精子转移之间呈正相关,尽管不显著。尽管如此,异速生长的种间变异性和方法上的挑战强调了继续研究的必要性,以充分了解蜘蛛内部生殖器进化的复杂性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Sperm Transfer Under Behavioral and Morphological Constraints in the Orb-Web Spider Genus Argiope.

Sperm transfer constraints are common phenomena in spider mating systems, influenced by both behavioral and morphological factors. Non-motile, encapsulated sperm cells must navigate through narrow male and female ducts during short (only seconds) copulations, all while under the pressure of female aggression, which can include sexual cannibalism and genital damage. However, little attention has been paid to the impact of male and female internal genital morphology on sperm transfer. In this study, we quantify the number of sperm transferred by males in five species of the genus Argiope as a direct measure of reproductive success. We explore sperm transfer in relation to copulation duration, sperm availability, sexual dimorphism, and female aggression. Additionally, we compare intra- and interspecific variation in sperm transfer by examining internal male and female genital morphological traits. Finally, we discuss the allometry of internal genital morphology in terms of sperm transfer in spiders. Our findings indicate that the occurrence of sexual cannibalism is the significant factor impacting sperm transfer in the genus Argiope. We observed a positive, albeit non-significant, correlation between sperm duct width and sperm transfer. Nonetheless, interspecific variability in allometry and methodological challenges underscore the need for continued research to fully understand the complexities of internal genital evolution in spiders.

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来源期刊
CiteScore
6.40
自引率
12.10%
发文量
81
审稿时长
>12 weeks
期刊介绍: The official journal of the International Society of Zoological Sciences focuses on zoology as an integrative discipline encompassing all aspects of animal life. It presents a broader perspective of many levels of zoological inquiry, both spatial and temporal, and encourages cooperation between zoology and other disciplines including, but not limited to, physics, computer science, social science, ethics, teaching, paleontology, molecular biology, physiology, behavior, ecology and the built environment. It also looks at the animal-human interaction through exploring animal-plant interactions, microbe/pathogen effects and global changes on the environment and human society. Integrative topics of greatest interest to INZ include: (1) Animals & climate change (2) Animals & pollution (3) Animals & infectious diseases (4) Animals & biological invasions (5) Animal-plant interactions (6) Zoogeography & paleontology (7) Neurons, genes & behavior (8) Molecular ecology & evolution (9) Physiological adaptations
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