Please use this identifier to cite or link to this item: https://repositorio.inpa.gov.br/handle/1/16390
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dc.contributor.authorBrinn, Marineide Neves Alves-
dc.contributor.authorPorto, Jorge Ivan Rebelo-
dc.contributor.authorFeldberg, Eliana-
dc.date.accessioned2020-06-04T14:39:03Z-
dc.date.available2020-06-04T14:39:03Z-
dc.date.issued2004-
dc.identifier.urihttps://repositorio.inpa.gov.br/handle/1/16390-
dc.description.abstractCichla monoculus, Cichla temensis (peacock bass or tucunaré), and its presumed hybrids, were cytogenetically analyzed. The fish were collected at three distinct sites in the central Amazon basin, namely in the Uatumã (C. monoculus, C. temensis and their natural hybrid), Jaú (C. temensis), and Solimões rivers (C. monoculus). The two species and the natural hybrid showed the same diploid number, 2n=48 acrocentric chromosomes. Single NORs were detected in the distal region of the long arm in all three species. However, in C. monoculus, the NOR was found on the second pair of the complement, in C. temensis, on the third pair and in the hybrid two NOR patterns were found, one on the second pair and the other on the third pair of chromosomes. The two species and the hybrid have their constitutive heterochromatin located in the pericentromeric region of all chromosomes and an interstitial C-band located on the largest chromosome pair. The great similarity in the chromosome number and morphology, chromosome size class differences, the NOR patterns and C-banding suggested chromosomal stasis during speciation and hybridization of Cichla.en
dc.language.isoenpt_BR
dc.relation.ispartofVolume 141, Número 3, Pags. 252-257pt_BR
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Brazil*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/br/*
dc.subjectAcrocentric Chromosomeen
dc.subjectBassen
dc.subjectC Bandingen
dc.subjectCentromereen
dc.subjectChromosome Analysisen
dc.subjectChromosome Armen
dc.subjectChromosome Noren
dc.subjectChromosome Numberen
dc.subjectChromosome Pairingen
dc.subjectChromosome Sizeen
dc.subjectChromosome Structureen
dc.subjectConstitutive Heterochromatinen
dc.subjectControlled Studyen
dc.subjectDiploidyen
dc.subjectFish Geneticsen
dc.subjectHybriden
dc.subjectInterspecific Hybridizationen
dc.subjectNonhumanen
dc.subjectRiveren
dc.subjectSpecies Differentiationen
dc.subjectAnimalen
dc.subjectChromosomesen
dc.subjectCichlidsen
dc.subjectFemaleen
dc.subjectHeterochromatinen
dc.subjectHybridization, Geneticen
dc.subjectKaryotypingen
dc.subjectMaleen
dc.subjectNucleolus Organizer Regionen
dc.subjectBairdiella Ronchusen
dc.subjectCichla Monoculusen
dc.subjectCichla Temensisen
dc.subjectCichlidaeen
dc.subjectPerciformesen
dc.titleKaryological evidence for interspecific hybridization between Cichla monoculus and C. temensis (Perciformes, Cichlidae) in the Amazonen
dc.typeArtigopt_BR
dc.identifier.doi10.1111/j.1601-5223.2004.01830.x-
dc.publisher.journalHereditaspt_BR
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