The ultrastructure of spermatozoa of two species of Aegla (A. parana and A. quilombola) (Crustacea, Decapoda) endemic to Brazil

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorAmerican University-
Autor(es): dc.contributorSmithsonian Institution-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.creatorWolf, Milena R.-
Autor(es): dc.creatorTudge, Christopher C.-
Autor(es): dc.creatorBueno, Sérgio L.S.-
Autor(es): dc.creatorZara, Fernando J.-
Autor(es): dc.creatorCastilho, Antonio L.-
Data de aceite: dc.date.accessioned2025-08-21T19:30:47Z-
Data de disponibilização: dc.date.available2025-08-21T19:30:47Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-05-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.asd.2023.101265-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/248785-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/248785-
Descrição: dc.descriptionThe previously published ultrastructure of Aegla spermatozoa contributed to the phylogenetics of this unique taxon. The present study describes the spermatozoa of two additional aeglids, Aegla parana and A. quilombola. The spermatozoa consist of two hemispheres of the approximate same size and a bilayered acrosomal vesicle; both characteristics of the genus Aegla. The similarity of spermatozoa ultrastructure observed between A. parana and A. quilombola and the endemic Australian anomuran, Lomis hirta (Lomidae) reflects a sister group relationship, even though both are from different regions of the world and different environments today. Aeglid spermatozoa share the same organization with Lomis including the two equal size hemispheres separated by a membrane also two layers in the acrosomal vesicle with the external layer being surrounded by another membrane. The number of spermatozoa microtubular arms is unclear in Aegla, however, they are present in both the nucleus and cytoplasm. This observation does not agree with the presence of spermatozoa arms only in the nucleus, as an exclusive character for Aegla, as proposed previously. The presence of lipid-droplets and peroxisomes was observed only in the spermatozoa of A. quilombola. The greatly reduced number of spermatozoa observed in all specimens analyzed raises concerns about the conservation of several threatened species. In addition, the absence of any spermatophores seems to be a characteristic of the Aeglidae to date.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionDepartment of Zoology Institute of Biosciences São Paulo State University (UNESP), São Paulo-
Descrição: dc.descriptionBiology Department American University-
Descrição: dc.descriptionDepartment of Invertebrate Zoology National Museum of Natural History Smithsonian Institution-
Descrição: dc.descriptionDepartment of Zoology Institute of Biosciences University of Sao Paulo, São Paulo-
Descrição: dc.descriptionInvertebrate Morphology Laboratory (IML) Department of Applied Biology Agricultural and Veterinary School of Jaboticabal São Paulo State University (UNESP), São Paulo-
Descrição: dc.descriptionDepartment of Zoology Institute of Biosciences São Paulo State University (UNESP), São Paulo-
Descrição: dc.descriptionInvertebrate Morphology Laboratory (IML) Department of Applied Biology Agricultural and Veterinary School of Jaboticabal São Paulo State University (UNESP), São Paulo-
Descrição: dc.descriptionFAPESP: #2016/20177-0-
Descrição: dc.descriptionFAPESP: #2018/13685-5-
Idioma: dc.languageen-
Relação: dc.relationArthropod Structure and Development-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAeglidae-
Palavras-chave: dc.subjectFreshwater-
Palavras-chave: dc.subjectLipid-droplets-
Palavras-chave: dc.subjectPeroxisomes-
Palavras-chave: dc.subjectPhylogenetics-
Palavras-chave: dc.subjectSpermatophore-
Título: dc.titleThe ultrastructure of spermatozoa of two species of Aegla (A. parana and A. quilombola) (Crustacea, Decapoda) endemic to Brazil-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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