Cytogenetic characterization of the strongly electric Amazonian eel, Electrophorus electricus (Teleostei, Gymnotiformes), from the Brazilian rivers Amazon and Araguaia

dc.contributorUniversidade de São Paulo (USP)
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorInstituto Brasileiro do Meio Ambiente e dos Recursos Naturais Renováveis
dc.date.accessioned2014-05-20T13:25:54Z
dc.date.available2014-05-20T13:25:54Z
dc.date.created2014-05-20T13:25:54Z
dc.date.issued2008-01-01
dc.identifierGenetics and Molecular Biology. Sociedade Brasileira de Genética, v. 31, n. 1, p. 227-230, 2008.
dc.identifier1415-4757
dc.identifierhttp://hdl.handle.net/11449/8257
dc.identifier10.1590/S1415-47572008000200010
dc.identifierS1415-47572008000200010
dc.identifierWOS:000257238500010
dc.identifierS1415-47572008000200010.pdf
dc.identifier3815338174165832
dc.description.abstractA karyotype analysis of the electric eel, Electrophorus electricus (Teleostei, Gymnotiformes), a strongly electric fish from northern South America, is presented. Two female specimens were analyzed, one from the Amazon River and one from the Araguaia River. The specimens had a chromosomal number of 2n = 52 (42M-SM + 10A). C-bands were present in a centromeric and pericentromeric position on part of the chromosomes; some interstitial C-bands were also present. Heteromorphic nucleolus organizer regions (NORs) were detected in two chromosome pairs of the specimen from the Amazon River. The chromosome number and karyotype characteristics are similar to those of other Gymnotidae species. The genera Electrophorus and Gymnotus are positioned as the basal lineages in the Gymnotiformes phylogeny.
dc.languageeng
dc.publisherSociedade Brasileira de Genética
dc.relationGenetics and Molecular Biology
dc.relation1.493
dc.relation0,638
dc.rightsAcesso aberto
dc.sourceSciELO
dc.subjectchromosome
dc.subjectfish
dc.subjectGymnotidae
dc.subjectelectric eel
dc.titleCytogenetic characterization of the strongly electric Amazonian eel, Electrophorus electricus (Teleostei, Gymnotiformes), from the Brazilian rivers Amazon and Araguaia
dc.typeArtículos de revistas


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