Use este identificador para citar ou linkar para este item:
https://repositorio.inpa.gov.br/handle/1/16580
Registro completo de metadados
Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Terra, Mariana Costa | - |
dc.contributor.author | Takagui, Fábio Hiroshi | - |
dc.contributor.author | Baldissera, Joana Neres da Cruz | - |
dc.contributor.author | Feldberg, Eliana | - |
dc.contributor.author | Dias, Ana Lúcia | - |
dc.date.accessioned | 2020-06-15T21:35:17Z | - |
dc.date.available | 2020-06-15T21:35:17Z | - |
dc.date.issued | 2019 | - |
dc.identifier.uri | https://repositorio.inpa.gov.br/handle/1/16580 | - |
dc.description.abstract | Pimelodidae family is one of the most diverse and widely distributed fish groups in South America. Phylogenetic analysis in the family have recently indicated the existence of two main clades: "sorubiminae" and the OCP clade, including Pimelodus ornatus, "calophysines" and "pimelodines." The aim of this study was to investigate the karyotype of three Amazonian Pimelodidae species: Calophysus macropterus, Propimelodus eigenmanni, and Exallodontus aguanai associating them to the literature, seeking to reconstruct probable ancestral characters. C. macropterus has 2n = 50, 20m+20sm+10a (fundamental number [FN] = 90), simple interstitial nucleolar organizing regions (NORs), and four 5S rDNA sites terminals, two in synteny with the 18S rDNA. P. eigenmanni has 2n = 56, 28m+20sm+2st+6a (FN = 106), simple NORs, and two 5S rDNA sites terminals. E. aguanai has 2n = 56, 36m+12sm+2st+6a (FN = 106) and 18S and 5S rDNA sites interstitial syntenic in the chromosome 1. All species exhibited a higher amount of heterochromatin, differing from the pattern of the family, and strong marking associated with NORs. The integration between molecular phylogenetic data and karyotype data indicated a high probability that 2n = 56 and simple terminals NORs in the short arm are ancestral characters in Pimelodidae, evidenced in "sorubiminae." In the OCP clade derived traits were observed resulting from chromosomal changes that played a critical role in the karyotype evolution of the group. © Copyright 2019, Mary Ann Liebert, Inc., publishers 2019. | en |
dc.language.iso | en | pt_BR |
dc.relation.ispartof | Volume 16, Número 6, Pags. 527-541 | pt_BR |
dc.rights | Restrito | * |
dc.title | The Karyotypic Diversification of Calophysines and the Exallodontus-Propimelodus Clade (Pimelodidae, Siluriformes): A Cytotaxonomic and Evolutionary Approach in Pimelodidae Based on Ancestral State Reconstruction | en |
dc.type | Artigo | pt_BR |
dc.identifier.doi | 10.1089/zeb.2019.1764 | - |
dc.publisher.journal | Zebrafish | pt_BR |
Aparece nas coleções: | Artigos |
Arquivos associados a este item:
Não existem arquivos associados a este item.
Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.