Male reproductive system of the freshwater prawn Macrobrachium brasiliense (Decapoda: Palaemonidae): Notes on spermatophore formation and sperm count

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dc.contributor.authorNogueira, Caio S. [UNESP]
dc.contributor.authorAntunes, Mariana [UNESP]
dc.contributor.authorZara, Fernando J. [UNESP]
dc.contributor.authorCosta, Rogerio C. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2023-07-29T13:36:35Z
dc.date.available2023-07-29T13:36:35Z
dc.date.issued2023-04-01
dc.description.abstractStudies on the morphology of the reproductive system are essential for understanding the reproduction processes of species or even within genera or families. The present study aimed to describe the functional morphology of the male reproductive system, spermatophore formation, and sperm count of Macrobrachium brasiliense. The anatomy of the reproductive system consists of a pair of testes from which the vasa deferentia (VD) starts, extending to the fifth pair of pereopods. The VD is divided into three regions: proximal (PVD), middle (MVD), and distal (DVD). In the PVD, there is a prominent fold, the typhlosole, formed by columnar cells. The typhlosole disappears in the MVD, being incorporated into one of the faces of the VD wall, identified by its simple columnar epithelium while the remainder of the vessel wall is formed by squamous or simple cubic epithelium. Columnar cells produce type-II and III secretion. The epithelium in the DVD is made up only of cubic cells. Low sperm concentration was observed when compared to other species of the genus Macrobrachium. In conclusion, the typhlosole and columnar epithelium are responsible for the asymmetric spermatophore, which seems the pattern of Macrobrachium that is probably shared with other caridean shrimps.en
dc.description.affiliationLaboratory of Biology of Marine and Freshwater Shrimps (LABCAM) Department of Biological Sciences Faculty of Sciences São Paulo State University (UNESP), São Paulo
dc.description.affiliationNEBECC Study Group on Crustacean Biology Ecology and Culture Department of Zoology Institute of Biosciences of Botucatu São Paulo State University (UNESP), São Paulo
dc.description.affiliationInvertebrate Morphology Laboratory (IML) Department of Biology Aquaculture Center (CAUNESP) São Paulo State University (UNESP), São Paulo
dc.description.affiliationUnespLaboratory of Biology of Marine and Freshwater Shrimps (LABCAM) Department of Biological Sciences Faculty of Sciences São Paulo State University (UNESP), São Paulo
dc.description.affiliationUnespNEBECC Study Group on Crustacean Biology Ecology and Culture Department of Zoology Institute of Biosciences of Botucatu São Paulo State University (UNESP), São Paulo
dc.description.affiliationUnespInvertebrate Morphology Laboratory (IML) Department of Biology Aquaculture Center (CAUNESP) São Paulo State University (UNESP), São Paulo
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 2019/00661–3
dc.description.sponsorshipIdCNPq: 306672/2018–9
dc.description.sponsorshipIdCNPq: 309298–2020-2
dc.identifierhttp://dx.doi.org/10.1016/j.tice.2022.102008
dc.identifier.citationTissue and Cell, v. 81.
dc.identifier.doi10.1016/j.tice.2022.102008
dc.identifier.issn1532-3072
dc.identifier.issn0040-8166
dc.identifier.scopus2-s2.0-85146127375
dc.identifier.urihttp://hdl.handle.net/11449/248176
dc.language.isoeng
dc.relation.ispartofTissue and Cell
dc.sourceScopus
dc.subjectCaridea
dc.subjectHistochemistry
dc.subjectHistology
dc.subjectTestes
dc.subjectTyphlosole
dc.titleMale reproductive system of the freshwater prawn Macrobrachium brasiliense (Decapoda: Palaemonidae): Notes on spermatophore formation and sperm counten
dc.typeArtigo

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Artigos - Ciências Biológicas - São Vicente
Artigos - Zoologia - IBB
Jaboticabal - CAUNESP - Centro de Aquicultura da Unesp