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dc.contributor.author
Poy, Dante  
dc.contributor.author
Ramirez, Martin Javier  
dc.contributor.author
Michalik, Peter  
dc.contributor.author
Piacentini, Luis Norberto  
dc.date.available
2020-12-04T15:12:41Z  
dc.date.issued
2019-10  
dc.identifier.citation
Poy, Dante; Ramirez, Martin Javier; Michalik, Peter; Piacentini, Luis Norberto; Copulatory mechanics in the wolf spider Agalenocosa pirity reveals a hidden diversity of locking systems in Lycosidae (Araneae); Veterinary and Human Toxicology; Journal of Morphology; 281; 2; 10-2019; 250-257  
dc.identifier.issn
0362-2525  
dc.identifier.uri
http://hdl.handle.net/11336/119867  
dc.description.abstract
Genital traits are among the fastest to evolve, and the processes that drive their evolution are intensively studied. Spiders are characterized by complex genitalia, but the functional role of the different structures during genital coupling is largely unknown. Members of one of the largest spider groups, the retrolateral tibial apophysis (RTA) clade, are characterized by a RTA on the male palp, which is thought to play a crucial role during genital coupling. However, the RTA was lost in several families including the species-rich wolf spiders (Lycosidae) leading to the hypothesis that the genital coupling is achieved by alternative mechanisms. Here, we investigate the genital interactions during copulation in the wolf spider Agalenocosa pirity (Zoicinae) on cryofixed mating pairs using electron, optical and X-ray microscopy and compare our findings with other lycosids and entelegyne spiders. We found an unprecedented coupling mechanism for lycosid spiders involving the palea and a membranous cuticle folding adjacent to the epigynal plate. Additionally, we show an uncommon coupling between the median apophysis and the contralateral genital opening, and confirmed that the terminal apophysis acts as functional conductor, as previously hypothesized for males of Zoicinae. Phylogenetic mapping of RTA indicated that the basal tibial process found in Agalenocosa is a secondary acquisition rather than a modified RTA.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Veterinary and Human Toxicology  
dc.rights
info:eu-repo/semantics/restrictedAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
CRYOFIXATION  
dc.subject
GENITAL MECHANICS  
dc.subject
MICRO-CT  
dc.subject.classification
Zoología, Ornitología, Entomología, Etología  
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Ciencias Biológicas  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.title
Copulatory mechanics in the wolf spider Agalenocosa pirity reveals a hidden diversity of locking systems in Lycosidae (Araneae)  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2020-11-26T17:45:50Z  
dc.journal.volume
281  
dc.journal.number
2  
dc.journal.pagination
250-257  
dc.journal.pais
Estados Unidos  
dc.description.fil
Fil: Poy, Dante. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina  
dc.description.fil
Fil: Ramirez, Martin Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina  
dc.description.fil
Fil: Michalik, Peter. ERNST MORITZ ARNDT UNIVERSITÄT GREIFSWALD (UG);  
dc.description.fil
Fil: Piacentini, Luis Norberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina  
dc.journal.title
Journal of Morphology  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/jmor.21095  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/jmor.21095