Male Gonadal Differentiation and the Paedomorphic Evolution of the Testis in Teleostei

dc.contributorUniversidade Estadual de Campinas (UNICAMP)
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorFlorida Fish & Wildlife Res Inst
dc.creatorMazzoni, Talita Sarah [UNESP]
dc.creatorGrier, Harry J.
dc.creatorQuagio-Grassiotto, Irani [UNESP]
dc.date2014-12-03T13:10:57Z
dc.date2014-12-03T13:10:57Z
dc.date2014-06-01
dc.date.accessioned2023-09-09T10:02:58Z
dc.date.available2023-09-09T10:02:58Z
dc.identifierhttp://dx.doi.org/10.1002/ar.22915
dc.identifierAnatomical Record-advances In Integrative Anatomy And Evolutionary Biology. Hoboken: Wiley-blackwell, v. 297, n. 6, p. 1137-1162, 2014.
dc.identifier1932-8486
dc.identifierhttp://hdl.handle.net/11449/112674
dc.identifier10.1002/ar.22915
dc.identifierWOS:000337042100012
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8762299
dc.descriptionTestis differentiation from representatives of the Otophysi (Cyprinus carpio), Percomorpha (Amatitlania nigrofasciata), and Atherinomorpha (Poecilia reticulata) was comparatively described. In the undifferentiated gonad of C. carpio, the primordial germ cells (PGCs) are scattered throughout the gonads while in A. nigrofasciata and P. reticulata the PGCs are restricted to the ventral periphery. In the dorsal region of the developing gonads, with the exception of C. carpio, somatic cell rearrangements result in the differentiation of the sperm duct. Pre-Sertoli cells wrap around single spermatogonia forming cysts that proliferate forming acinar-clusters. In C. carpio and A. nigrofasciata, the cysts in each acinar-cluster move away from each other, creating a central lumen. In C. carpio, the acinar-clusters then fuse to each other forming tubules that become lined by the germinal epithelium. Subsequently, the tubules anastomose dorsally and create the sperm duct. In A. nigrofasciata, the acinar-clusters elongate, forming lobules that individually connect to the sperm duct. These are lined by the germinal epithelium. In P. reticulata, the spermatogonial cysts remain in the acinar-cluster organization. Subsequently, developing ducts connect each cluster to the sperm duct and lobules subsequently develop. In the differentiated testis of C. carpio and A. nigrofasciata, spermatogonia are distributed along the lengths of the anastomosing tubules or lobules, respectively. However, in P. reticulata, the spermatogonia remain restricted to the terminal end of the lobules. Considering testis ontogeny, the spermatogonial acinar-cluster is the adult characteristic of more derived taxa that approximate the early gonad developmental stages of the basal taxa. (C) 2014 Wiley Periodicals, Inc.
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionUniv Estadual Campinas, Inst Biol, Grad Program Cell & Struct Biol, Campinas, SP, Brazil
dc.descriptionUNESP, Dept Morfol, Inst Biociencias Botucatu, BR-18618970 Botucatu, SP, Brazil
dc.descriptionFlorida Fish & Wildlife Res Inst, St Petersburg, FL USA
dc.descriptionUNESP, Ctr Aquicultura, Jaboticabal, SP, Brazil
dc.descriptionUNESP, Dept Morfol, Inst Biociencias Botucatu, BR-18618970 Botucatu, SP, Brazil
dc.descriptionUNESP, Ctr Aquicultura, Jaboticabal, SP, Brazil
dc.format1137-1162
dc.languageeng
dc.publisherWiley-Blackwell
dc.relationAnatomical Record-advances In Integrative Anatomy and Evolutionary Biology
dc.relation1.373
dc.relation0,766
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.subjectgerminal epithelium
dc.subjectgonadal differentiation
dc.subjectOstariophysi
dc.subjectPercomorpha
dc.subjectAtherinomorpha
dc.titleMale Gonadal Differentiation and the Paedomorphic Evolution of the Testis in Teleostei
dc.typeArtigo


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