Chromosomal diversity in three species of electric fish (Apteronotidae, Gymnotiformes) from the Amazon Basin

dc.creatorSILVA, Fernando Henrique Ramos
dc.creatorPIECZARKA, Julio Cesar
dc.creatorCARDOSO, Adauto Lima
dc.creatorSILVA, Patrícia Corrêa da
dc.creatorOLIVEIRA, Jonas Alves de
dc.creatorNAGAMACHI, Cleusa Yoshiko
dc.date2015-09-10T13:39:29Z
dc.date2015-09-10T13:39:29Z
dc.date2014-12
dc.date.accessioned2023-09-28T15:26:57Z
dc.date.available2023-09-28T15:26:57Z
dc.identifierSILVA, Fernando Henrique Ramos et al. Chromosomal diversity in three species of electric fish (Apteronotidae, Gymnotiformes) from the Amazon Basin. Genetics and Molecular Biology, Ribeirão Preto, v. 37, n. 4, p. 638-645, dez. 2014. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572014000500006&lng=pt&nrm=iso>. Acesso em: 26 ago. 2015. <http://dx.doi.org/10.1590/S1415-47572014005000018>.
dc.identifier1415-4757
dc.identifierhttp://repositorio.ufpa.br/jspui/handle/2011/6873
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9014884
dc.descriptionCytogenetic studies were carried out on samples of Parapteronotus hasemani, Sternarchogiton preto and Sternarchorhamphus muelleri (Apteronotidae, Gymnotiformes) from the Amazon basin. The first two species exhibited both a 2n = 52 karyotype, but differed in their karyotypic formulae, distribution of constitutive heterochromatin, and chromosomal location of the NOR. The third species, Sternarchorhamphus muelleri, was found to have a 2n = 32 karyotype. In all three species the DAPI and chromomycin A3 staining results were consistent with the C-banding results and nucleolar organizer region (NOR) localization. The 18S rDNA probe confirmed that there was only one pair of ribosomal DNA cistron bearers per species. The telomeric probe did not reveal interstitial telomeric sequences (ITS). The karyotypic differences among these species can be used for taxonomic identification. These data will be useful in future studies of these fishes and help understanding the phylogenetic relationships and chromosomal evolution of the Apteronotidae.
dc.formatapplication/pdf
dc.languageeng
dc.rightsAcesso Aberto
dc.subjectPeixe
dc.subjectCitogenética
dc.subjectPeixe-elétrico neotropical
dc.subjectCorantes fluorescentes
dc.subjectBiodiversidade
dc.subjectAmazônia brasileira
dc.titleChromosomal diversity in three species of electric fish (Apteronotidae, Gymnotiformes) from the Amazon Basin
dc.typeArtigo de Periódico


Este ítem pertenece a la siguiente institución