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Campo DC | Valor | Idioma |
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dc.contributor.author | Gross, Maria Claudia | - |
dc.contributor.author | Schneider, Carlos Henrique | - |
dc.contributor.author | Targino Valente, Guilherme | - |
dc.contributor.author | Martins, Cesar Henrique Rossinoli | - |
dc.contributor.author | Feldberg, Eliana | - |
dc.date.accessioned | 2020-06-15T21:53:45Z | - |
dc.date.available | 2020-06-15T21:53:45Z | - |
dc.date.issued | 2010 | - |
dc.identifier.uri | https://repositorio.inpa.gov.br/handle/1/18327 | - |
dc.description.abstract | Three species of cichlids belonging to the genus Symphysodon have demonstrated interspecific and intraspecific variation in nucleolus organizer regions (NOR) detected with silver nitrate. In order to understand the evolution of this marker in the genus, the structural variability of these sequences in mitotic chromosomes from Symphysodon aequifasciatus, Symphysodon discus and Symphysodon haraldi was investigated using both silver nitrate impregnation and hybridization of the 18S rRNA gene probe. For the three species, the two markers were intraspecifically and interspecifically variable both in the number and in the size of the sites. This polymorphism may stem from duplications and translocations, which suggests that structural chromosome rearrangements effectively act in the karyoevolution of wild Symphysodon species and may have favoured the adaptability of these fishes to diverse aquatic environments in the Amazon. © 2010 The Authors. Journal compilation © 2010 The Fisheries Society of the British Isles. | en |
dc.language.iso | en | pt_BR |
dc.relation.ispartof | Volume 76, Número 5, Pags. 1117-1127 | pt_BR |
dc.rights | Restrito | * |
dc.subject | Cichlidae | en |
dc.subject | Pisces | en |
dc.subject | Symphysodon | en |
dc.subject | Symphysodon Aequifasciata | en |
dc.subject | Symphysodon Discus | en |
dc.subject | Ribosome Dna | en |
dc.subject | Rna 18s | en |
dc.subject | Animals | en |
dc.subject | Chromosome Aberration | en |
dc.subject | Chromosome Nor | en |
dc.subject | Cichlid | en |
dc.subject | Dna Probe | en |
dc.subject | Female | en |
dc.subject | In Situ Hybridization, Fluorescence | en |
dc.subject | Genetic Marker | en |
dc.subject | Polymorphism, Genetic | en |
dc.subject | Genetics | en |
dc.subject | Male | en |
dc.subject | Evolution, Molecular | en |
dc.subject | Polymerase Chain Reaction | en |
dc.subject | Silver Staining | en |
dc.subject | Animal | en |
dc.subject | Chromosome Aberrations | en |
dc.subject | Cichlids | en |
dc.subject | Dna Probes | en |
dc.subject | Ribosomal Dna | en |
dc.subject | Evolution, Molecular | en |
dc.subject | Female | en |
dc.subject | Genetic Markers | en |
dc.subject | In Situ Hybridization, Fluorescence | en |
dc.subject | Male | en |
dc.subject | Nucleolus Organizer Region | en |
dc.subject | Polymerase Chain Reaction | en |
dc.subject | Polymorphism, Genetic | en |
dc.subject | Rna, Ribosomal, 18s | en |
dc.subject | Silver Staining | en |
dc.title | Variability of 18S rDNA locus among Symphysodon fishes: chromosomal rearrangements | en |
dc.type | Artigo | pt_BR |
dc.identifier.doi | 10.1111/j.1095-8649.2010.02550.x | - |
dc.publisher.journal | Journal of Fish Biology | pt_BR |
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