title: Nucleolar Persistence: Peculiar Characteristic of Spermatogenesis of the Vectors of Chagas Disease (Hemiptera, Triatominae).
abstract: All species of triatomines are considered potential vectors of Chagas disease and the reproductive biology of these bugs has been studied by different approaches. In 1999, nucleolar persistence during meiosis was observed in the subfamily for the first time. Recently, it has been observed that all species within the genus Rhodnius exhibit the same phenomenon, suggesting that it may be a synapomorphy of the triatomines. Thus, this article aims to analyze the nucleolar behavior during spermatogenesis of 59 triatomine species. All analyzed species exhibited nucleolar persistence during meiosis. Recently, it has been suggested that nucleolar persistence may be fundamental for the spermatogenesis of these vectors, since it is related to the formation of the chromatoid body. Therefore, we emphasize that this phenomenon is a peculiarity of the Triatominae subfamily and that further studies are required to analyze whether the nucleolar material that persists is active.
authors.affiliation: Departamento de Biologia, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista-São José do Rio Preto, São Paulo, Brazil.
authors.forename: Fernanda Fernandez
authors.initials: FF
authors.lastname: Madeira
authors.affiliation: Departamento de Biologia, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista-São José do Rio Preto, São Paulo, Brazil.
authors.forename: Kelly Cristine
authors.initials: KC
authors.lastname: Borsatto
authors.affiliation: Departamento de Biologia, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista-São José do Rio Preto, São Paulo, Brazil.
authors.forename: Anna Claudia Campaner
authors.initials: AC
authors.lastname: Lima
authors.affiliation: Departamento de Biologia, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista-São José do Rio Preto, São Paulo, Brazil.
authors.forename: Amanda
authors.initials: A
authors.lastname: Ravazi
authors.affiliation: Departamento de Ciências Biológicas, Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista-Araraquara, São Paulo, Brazil.
authors.forename: Jader
authors.initials: J
authors.lastname: de Oliveira
authors.affiliation: Departamento de Ciências Biológicas, Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista-Araraquara, São Paulo, Brazil.
authors.forename: João Aristeu
authors.initials: JA
authors.lastname: da Rosa
authors.affiliation: Departamento de Biologia, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista-São José do Rio Preto, São Paulo, Brazil.
authors.forename: Maria Tercília Vilela
authors.initials: MT
authors.lastname: de Azeredo-Oliveira
authors.affiliation: Departamento de Biologia, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista-São José do Rio Preto, São Paulo, Brazil. kaiochaboli@hotmail.com.
authors.forename: Kaio Cesar Chaboli
authors.initials: KC
authors.lastname: Alevi
mesh_terms: D000818:Animals; D002466:Cell Nucleolus; D014355:Chagas Disease; D007303:Insect Vectors / Q000469:parasitology*; D008297:Male; D008540:Meiosis; D013045:Species Specificity; D013048:Specimen Handling; D013091:Spermatogenesis; D013094:Spermatozoa / Q000648:ultrastructure*; D014224:Triatoma / Q000469:parasitology*