A study of meiosis and spermiogenesis in the testicular lobes of Antiteuchus tripterus (Heteroptera : Pentatomidae)

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dc.contributor.authorSouza, Herderson Vnicius de [UNESP]
dc.contributor.authorBicudo, Hermione Elly Melara de Campos [UNESP]
dc.contributor.authorCosta, Luiz Antonio Alves
dc.contributor.authorItoyama, Mary Massumi [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionMuseu Nacional
dc.date.accessioned2014-05-20T14:00:20Z
dc.date.available2014-05-20T14:00:20Z
dc.date.issued2007-07-25
dc.description.abstractAn analysis of testicular morphology and spermatogenesis in the Heteroptera species Antileuchus tripterus (Pentatomidae) revealed that these traits differ from that recorded for other species of the same family. The testes of A. tripterus have only six lobes, while other species of the same family typically have seven lobes, including a compound lobe, i.e., a lobe containing another in its lumen. A study of meiosis and sperm structure in the different lobes of A. tripterus revealed a conventional meiosis in the lobes numbered one to three. In lobe four, however, prophase I spermatocytes exhibit the morphological characteristics of the so called diffuse stage and are larger than those in lobes 1-3 in this and the remaining phases of meiosis. Thus, the resulting spermatids are not only larger but also their head is morphologically different. Lobe 5 exhibits characteristies known from other Pentatomidae species such as an uneven distribution of chromatin to the daughter cells, which give rise to cells of different sizes. This lobe forms spermatozoa of different sizes. Lobe 6, contained within lobe 5, differs from it by having larger cells at a stage similar to the so called diffuse and spermatid tails with cross divisions, which are not found in other lobes and unreported in the literature.en
dc.description.affiliationUniv Estadual Paulista, Inst Biociencias Letras & Ciências Exatas, UNESP IBILCE, Dept Biol,Lab Citogenet Insetos, BR-15054000 Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationDept Entomol, Museu Nacl, Rio de Janeiro, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Biociencias Letras & Ciências Exatas, UNESP IBILCE, Dept Biol,Lab Citogenet Insetos, BR-15054000 Sao Jose Dos Campos, SP, Brazil
dc.format.extent353-362
dc.identifierhttp://search.ebscohost.com/login.aspx?direct=true&db=a9h&AN=28811032&lang=pt-br&site=ehost-live
dc.identifier.citationEuropean Journal of Entomology. Ceske Budejovice: Czech Acad Sci, Inst Entomology, v. 104, n. 3, p. 353-362, 2007.
dc.identifier.issn1210-5759
dc.identifier.lattes2083565673316669
dc.identifier.scopus2-s2.0-34848865598
dc.identifier.urihttp://hdl.handle.net/11449/21345
dc.identifier.wosWOS:000249272600001
dc.language.isoeng
dc.publisherCzech Acad Sci, Inst Entomology
dc.relation.ispartofEuropean Journal of Entomology
dc.relation.ispartofsjr0,552
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectHeteropterapt
dc.subjectPentatomidaept
dc.subjectMeiosispt
dc.subjectspermatozoapt
dc.subjecttesticular lobespt
dc.subjectharlequin lobept
dc.titleA study of meiosis and spermiogenesis in the testicular lobes of Antiteuchus tripterus (Heteroptera : Pentatomidae)en
dc.typeArtigo
dcterms.licensehttp://www.eje-online.org/site/misc/archiving_policy.xhtml
dcterms.rightsHolderCzech Acad Sci, Inst Entomology
unesp.author.lattes2083565673316669
unesp.author.orcid0000-0002-0335-4475[4]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências Letras e Ciências Exatas, São José do Rio Pretopt

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