Morphological analysis of the female reproductive system of Stenorhynchus seticornis (Brachyura: Inachoididae) and comparisons with other Majoidea

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dc.contributor.authorAntunes, Mariana [UNESP]
dc.contributor.authorZara, Fernando José [UNESP]
dc.contributor.authorLópez-Greco, Laura S.
dc.contributor.authorNegreiros-Fransozo, Maria Lucia [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversity of Buenos Aires
dc.contributor.institutionCONICET-UBA
dc.date.accessioned2018-12-11T17:02:23Z
dc.date.available2018-12-11T17:02:23Z
dc.date.issued2016-06-01
dc.description.abstractWe examined the female reproductive system of the yellowline arrow crab Stenorhynchus seticornis by means of histological and histochemical techniques. Mature specimens obtained in the field were kept in the laboratory for mating experiments. After 24 h, newly mated females were dissected, and their reproductive trait routinely processed for embedding in historesin. The specimens examined each possessed a pair of kidney-shaped seminal receptacles (SR), and these we classified as ventral type, based on the location of the oviduct opening. The mesodermal dorsal region (DR) of SR consisted of a stratified epithelium with scaly cells, while the ectodermal ventral region (VR) was composed of a simple epithelium covered by a cuticle. The oviduct opened at the transition region (TR) between DR and VR and had no velum. The simple epithelium of TR had more folds on the face of the oviduct opening. The vagina exhibited the same features as the TR epithelium and was contiguous to VR, anchored by muscles. In the lumen, from one to three strata of sperm packets were observed, the dorsal one containing free sperm, and the most ventral stratum, spermatophores. An acidophilic glycoprotein layer enclosed the strata. Spermatophores in the ventral stratum were enclosed in a voluminous secretion, composed by acid polysaccharides most likely from the last male mated. The ventral-type receptacle, stratified sperm packets, and polyandry, usually observed in females of Majoidea, suggest the occurrence of sperm competition in S. seticornis, favoring the sperm of the last male mated, as its sperm mass is located near the opening of the female oviduct.en
dc.description.affiliationNEBECC Study Group on Crustacean Biology Ecology and Culture Institute of Biosciences and IEAMar-UNESP São Paulo State University
dc.description.affiliationIML Invertebrate Morphology Laboratory Department of Applied Biology Aquaculture Center (CAUNESP) and IEAMar-UNESP São Paulo State University
dc.description.affiliationBiology of Reproduction and Growth of Decapod Crustaceans Laboratory Department of Biodiversity and Experimental Biology University of Buenos Aires
dc.description.affiliationIBBEA CONICET-UBA
dc.description.affiliationUnespNEBECC Study Group on Crustacean Biology Ecology and Culture Institute of Biosciences and IEAMar-UNESP São Paulo State University
dc.description.affiliationUnespIML Invertebrate Morphology Laboratory Department of Applied Biology Aquaculture Center (CAUNESP) and IEAMar-UNESP São Paulo State University
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIdFAPESP: #2010/50188-8
dc.description.sponsorshipIdCAPES: #217/2012
dc.description.sponsorshipIdCAPES: #23038.004309/2014-51
dc.format.extent75-86
dc.identifierhttp://dx.doi.org/10.1111/ivb.12118
dc.identifier.citationInvertebrate Biology, v. 135, n. 2, p. 75-86, 2016.
dc.identifier.doi10.1111/ivb.12118
dc.identifier.issn1744-7410
dc.identifier.issn1077-8306
dc.identifier.scopus2-s2.0-84963785396
dc.identifier.urihttp://hdl.handle.net/11449/172838
dc.language.isoeng
dc.relation.ispartofInvertebrate Biology
dc.relation.ispartofsjr0,568
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectcrab reproduction
dc.subjecthistology
dc.subjectseminal receptacle
dc.subjectspermatophores
dc.titleMorphological analysis of the female reproductive system of Stenorhynchus seticornis (Brachyura: Inachoididae) and comparisons with other Majoideaen
dc.typeArtigo

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Jaboticabal - CAUNESP - Centro de Aquicultura da Unesp