Reproductive aspects of Chagas disease vectors: Evidence of transcriptional activity during the nucleolar persistence phenomenon in the spermatogenesis of triatomines

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dc.contributor.authorMadeira, Fernanda Fernandez [UNESP]
dc.contributor.authorChaboli Alevi, Kaio Cesar [UNESP]
dc.contributor.authorDa Costa Castro, Nayara Fernanda [UNESP]
dc.contributor.authorLeite Vilamaior, Patrícia Simone [UNESP]
dc.contributor.authorDa Rosa, João Aristeu [UNESP]
dc.contributor.authorDe Azeredo-Oliveira, Maria Tercília Vilela [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2019-10-06T17:19:46Z
dc.date.available2019-10-06T17:19:46Z
dc.date.issued2019-01-01
dc.description.abstractThe subfamily Triatominae currently consists of 154 species, most of them being of great importance for public health because they are considered potential vectors of the protozoan Trypanosoma cruzi, the etiologic agent of Chagas disease. In addition to their epidemiological importance, these insects are considered important biological models for cell studies because they have peculiar characteristics in their cells, for example, persistence of the nucleolus during spermatogenesis. This phenomenon is characterized by the presence of the nucleolus or nucleolar corpuscles during all phases of meiosis. To date, all knowledge is restricted to the study of the presence/absence of the nucleolus during the triatomine meiosis, so the present work aimed to analyze if this persistent nucleolar material has transcriptional activity. Analysis of the meiotic metaphases of Rhodnius montenegrensis and Panstrongylus megistus by using fluorochrome acridine orange made it possible to characterize the presence of RNA in the nucleolar material. Thus, it was demonstrated, for the first time, that the persistent nucleolar material during triatomine meiosis is transcriptionally active, supporting the hypothesis of the relationship between nucleolar persistence during meiosis of these insects and the formation of the chromoid body, an organelle responsible for the support of all transcriptional activities during spermiogenesis.en
dc.description.affiliationInstituto de Biociências Letras e Ciências Exatas Universidade Estadual Paulista (UNESP), Rua Cristóvão Colombo 2265
dc.description.affiliationFaculdade de Ciências Farmacêuticas Universidade Estadual Paulista (UNESP)
dc.description.affiliationUnespInstituto de Biociências Letras e Ciências Exatas Universidade Estadual Paulista (UNESP), Rua Cristóvão Colombo 2265
dc.description.affiliationUnespFaculdade de Ciências Farmacêuticas Universidade Estadual Paulista (UNESP)
dc.format.extent602-604
dc.identifierhttp://dx.doi.org/10.4269/ajtmh.19-0226
dc.identifier.citationAmerican Journal of Tropical Medicine and Hygiene, v. 101, n. 3, p. 602-604, 2019.
dc.identifier.doi10.4269/ajtmh.19-0226
dc.identifier.issn0002-9637
dc.identifier.scopus2-s2.0-85071898237
dc.identifier.urihttp://hdl.handle.net/11449/190634
dc.language.isoeng
dc.relation.ispartofAmerican Journal of Tropical Medicine and Hygiene
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.titleReproductive aspects of Chagas disease vectors: Evidence of transcriptional activity during the nucleolar persistence phenomenon in the spermatogenesis of triatominesen
dc.typeArtigo

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