The innervation of the male copulatory organ of spiders (Araneae)–a comparative analysis

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F19%3A00112084" target="_blank" >RIV/00216224:14310/19:00112084 - isvavai.cz</a>
Result on the web
<a href="https://frontiersinzoology.biomedcentral.com/articles/10.1186/s12983-019-0337-6" target="_blank" >https://frontiersinzoology.biomedcentral.com/articles/10.1186/s12983-019-0337-6</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1186/s12983-019-0337-6" target="_blank" >10.1186/s12983-019-0337-6</a>

Result language
angličtina
Original language name
The innervation of the male copulatory organ of spiders (Araneae)–a comparative analysis
Original language description
Background Nervous tissue is an inherent component of the many specialized genital structures for transferring sperm directly into the female’s body. However, the male copulatory organ of spiders was considered a puzzling exception. Based on the recent discovery of nervous tissue in the pedipalps of two distantly related spider species, we investigated representatives of all major groups across the spider tree of life for the presence of palpal nerves. We used a correlative approach that combined histology, micro-computed tomography and electron microscopy. Results We show that the copulatory organ is innervated in all species investigated. There is a sensory organ at the base of the sperm transferring sclerite in several taxa and nervous tissue occurs close to the glandular tissue of the spermophor, where sperm are stored before transfer. Conclusions The innervation of the copulatory organ by the bulb nerve and associated efferent fibers is part of the ground pattern of spiders. Our findings pave the way for unraveling the sensory interaction of genitalia during mating and for the still enigmatic mode of uptake and release of sperm from the male copulatory organ.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10613 - Zoology

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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