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dc.contributor.authorPiscor, Diovani [UNESP]
dc.contributor.authorFernandes, Carlos Alexandre
dc.contributor.authorParise-Maltempi, Patricia Pasquali [UNESP]
dc.date.accessioned2018-11-26T17:44:46Z
dc.date.available2018-11-26T17:44:46Z
dc.date.issued2017-12-01
dc.identifierhttp://dx.doi.org/10.1515/biolog-2017-0162
dc.identifier.citationBiologia. Berlin: Walter De Gruyter Gmbh, v. 72, n. 12, p. 1499-1502, 2017.
dc.identifier.issn0006-3088
dc.identifier.urihttp://hdl.handle.net/11449/163739
dc.description.abstractThe Piabina genus was allocated in Stervadiinae subfamily after staying for years as an uncertain group in Characidae. Few cytogenetic studies are described in the literature for Piabina argentea, thus new analyzes in other populations are important to understanding of the chromosomal dynamics of them. The aim of this paper was to analyze the chromosomes of P. argentea from Corumbatai River basin focusing mainly the chromosomal locations of 18S rDNA and 5S rDNA clusters. The diploid chromosome number was 2n = 52 for P. argentea, which were classified as 6 metacentrics (m), 8 submetacentrics (sm), 24 subtelocentrics (st) and 14 acrocentrics (a), and FN (fundamental number) value 90 in both sexes. Silver nitrate impregnation located the nucleolus organizer regions (Ag-NORs) on the short (p) arm of pair 16, however, an intra-individual variation of Ag-NORs sites was observed in two individuals. Fluorescence in situ hybridization (FISH) revealed six 18S rDNA sites (pairs 8, 10 and 16) and four 5S rDNA sites in terminal positions of the short arm of pairs 5 and 22 (one submetacentric and one acrocentric) in P. argentea. The results indicate that, despite the conserved diploid number, this group of fish presents a wide variability of the 18S and 5S rDNA sites.en
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.format.extent1499-1502
dc.language.isoeng
dc.publisherWalter De Gruyter Gmbh
dc.relation.ispartofBiologia
dc.sourceWeb of Science
dc.subjectrepetitive DNA
dc.subjectFISH
dc.subjectchromosome evolution
dc.subjectNeotropical fish
dc.titleNucleolar organizer regions, 18S and 5S rDNA clusters in the chromosomes of Piabina argentea (Characiformes: Characidae)en
dc.typeArtigo
dcterms.rightsHolderWalter De Gruyter Gmbh
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Estadual de Mato Grosso do Sul (UEMS)
dc.description.affiliationUniv Estadual Paulista, UNESP, Inst Biociencias, Dept Biol,Lab Citogenet, Av 24A,1515, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationUniv Estadual Mato Grosso do Sul UEMS, Unidade Mundo Novo, BR 163,Km 20-2, BR-79980000 Mundo Novo, MS, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, UNESP, Inst Biociencias, Dept Biol,Lab Citogenet, Av 24A,1515, BR-13506900 Rio Claro, SP, Brazil
dc.identifier.doi10.1515/biolog-2017-0162
dc.identifier.wosWOS:000422841900014
dc.rights.accessRightsAcesso aberto
dc.identifier.fileWOS000422841900014.pdf
dc.relation.ispartofsjr0,299
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