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A spider mating plug functions to protect sperm [Elektronski vir]Jiang, He, biolog ...Mating plugs in animals are ubiquitous and are commonly interpreted to be products of mating strategies. In spiders, however, mating plugs may also take on functions beyond female remating ... prevention. Due to the vagaries of female genital (spermathecal) anatomy, most spiders face the problem of having to secure additional, non-anatomical, protection for transferred sperm. Here, we test the hypothesis that mating plugs, rather than (or in addition to) being adaptations for mating strategies, may serve as sperm protection mechanism. Based on a comparative study on 411 epigyna sampled from 36 families, 187 genera, 330 species of entelegyne spiders, our results confirm the necessity of a sperm protection mechanism. We divided the entelegyne spermathecae into four types: SEG, SED, SCG and SCD. We also studied detailed morphology of epigynal tracts in the spider Diphya wulingensis having the SEG type spermathecae, using 3D-reconstruction based on semi thin histological series section. In this species, we hypothesize that two distinct types of mating plug, the sperm plug and the secretion plug, serve different functions. Morphological details support this: sperm plugs are formed on a modified spermathecal wall by the spilled sperm, and function as a temporary protection mechanism to prevent sperm from leaking and desiccating, while secretion plugs function in postcopulation both as a permanent protection mechanism, and to prevent additional mating. Furthermore, with the modified spermathecal wall of S2 stalk, the problem of shunt of sperm input and output, and the possibility of female multiple mating have been resolved. Variation in spermathecal morphology also suggests that the problem of sperm protection might be resolved in different ways in spiders. Considering mating plugs of varying shapes and origins in the vast morphospace of spiders, we conclude that mating plugs might serve different purposes that relate both to mating strategies, as well as to sperm protection.Source: PloS one [Elektronski vir]. - ISSN 1932-6203 (Vol. 19, issue 3, [article no.] e0301290, 2024, str. 1-21)Type of material - e-articlePublish date - 2024Language - englishCOBISS.SI-ID - 191536643
Author | Jiang, He, biolog ... |
Title | A spider mating plug functions to protect sperm [Elektronski vir] |
Publication date | 2024-03-29 |
COBISS.SI-ID | 191536643 |
Publication version in repository | Publisher's version |
Publication licence | Creative Commons Attribution 4.0 International |
Embargo | Immediate publication for public |
Project(s) from which the publication was funded
Title | Acronym | Project ID | Funder |
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Združbe, interakcije in komunikacije v ekosistemih | P1-0255-2017 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
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Biogeografija naslednje generacije: pajki splavarji kot modelna skupina | J1-50015-2023 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
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https://d.cobiss.net/repository/si/files/191536643/139135/journal.pone.0301290.pdf |
https://dirros.openscience.si/IzpisGradiva.php?id=19128 |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Jiang, He, biolog | |
Zhan, Yongjia | |
Wu, Qingqing, zoologija | |
Zhang, Huitao | |
Kuntner, Matjaž | 19326 |
Tu, Lihong |
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