Variability of 18S rDNA locus among Symphysodon fishes: chromosomal rearrangements
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...
| Autor principal: | Gross, Maria Claudia |
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| Outros Autores: | Schneider, Carlos Henrique, Targino Valente, Guilherme, Martins, Cesar Henrique Rossinoli, Feldberg, Eliana |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Journal of Fish Biology
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/18327 |
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oai:repositorio:1-18327 |
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oai:repositorio:1-18327 Variability of 18S rDNA locus among Symphysodon fishes: chromosomal rearrangements Gross, Maria Claudia Schneider, Carlos Henrique Targino Valente, Guilherme Martins, Cesar Henrique Rossinoli Feldberg, Eliana Cichlidae Pisces Symphysodon Symphysodon Aequifasciata Symphysodon Discus Ribosome Dna Rna 18s Animals Chromosome Aberration Chromosome Nor Cichlid Dna Probe Female In Situ Hybridization, Fluorescence Genetic Marker Polymorphism, Genetic Genetics Male Evolution, Molecular Polymerase Chain Reaction Silver Staining Animal Chromosome Aberrations Cichlids Dna Probes Ribosomal Dna Evolution, Molecular Female Genetic Markers In Situ Hybridization, Fluorescence Male Nucleolus Organizer Region Polymerase Chain Reaction Polymorphism, Genetic Rna, Ribosomal, 18s Silver Staining 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. 2020-06-15T21:53:45Z 2020-06-15T21:53:45Z 2010 Artigo https://repositorio.inpa.gov.br/handle/1/18327 10.1111/j.1095-8649.2010.02550.x en Volume 76, Número 5, Pags. 1117-1127 Restrito Journal of Fish Biology |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Cichlidae Pisces Symphysodon Symphysodon Aequifasciata Symphysodon Discus Ribosome Dna Rna 18s Animals Chromosome Aberration Chromosome Nor Cichlid Dna Probe Female In Situ Hybridization, Fluorescence Genetic Marker Polymorphism, Genetic Genetics Male Evolution, Molecular Polymerase Chain Reaction Silver Staining Animal Chromosome Aberrations Cichlids Dna Probes Ribosomal Dna Evolution, Molecular Female Genetic Markers In Situ Hybridization, Fluorescence Male Nucleolus Organizer Region Polymerase Chain Reaction Polymorphism, Genetic Rna, Ribosomal, 18s Silver Staining |
| spellingShingle |
Cichlidae Pisces Symphysodon Symphysodon Aequifasciata Symphysodon Discus Ribosome Dna Rna 18s Animals Chromosome Aberration Chromosome Nor Cichlid Dna Probe Female In Situ Hybridization, Fluorescence Genetic Marker Polymorphism, Genetic Genetics Male Evolution, Molecular Polymerase Chain Reaction Silver Staining Animal Chromosome Aberrations Cichlids Dna Probes Ribosomal Dna Evolution, Molecular Female Genetic Markers In Situ Hybridization, Fluorescence Male Nucleolus Organizer Region Polymerase Chain Reaction Polymorphism, Genetic Rna, Ribosomal, 18s Silver Staining Gross, Maria Claudia Variability of 18S rDNA locus among Symphysodon fishes: chromosomal rearrangements |
| topic_facet |
Cichlidae Pisces Symphysodon Symphysodon Aequifasciata Symphysodon Discus Ribosome Dna Rna 18s Animals Chromosome Aberration Chromosome Nor Cichlid Dna Probe Female In Situ Hybridization, Fluorescence Genetic Marker Polymorphism, Genetic Genetics Male Evolution, Molecular Polymerase Chain Reaction Silver Staining Animal Chromosome Aberrations Cichlids Dna Probes Ribosomal Dna Evolution, Molecular Female Genetic Markers In Situ Hybridization, Fluorescence Male Nucleolus Organizer Region Polymerase Chain Reaction Polymorphism, Genetic Rna, Ribosomal, 18s Silver Staining |
| description |
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. |
| format |
Artigo |
| author |
Gross, Maria Claudia |
| author2 |
Schneider, Carlos Henrique Targino Valente, Guilherme Martins, Cesar Henrique Rossinoli Feldberg, Eliana |
| author2Str |
Schneider, Carlos Henrique Targino Valente, Guilherme Martins, Cesar Henrique Rossinoli Feldberg, Eliana |
| title |
Variability of 18S rDNA locus among Symphysodon fishes: chromosomal rearrangements |
| title_short |
Variability of 18S rDNA locus among Symphysodon fishes: chromosomal rearrangements |
| title_full |
Variability of 18S rDNA locus among Symphysodon fishes: chromosomal rearrangements |
| title_fullStr |
Variability of 18S rDNA locus among Symphysodon fishes: chromosomal rearrangements |
| title_full_unstemmed |
Variability of 18S rDNA locus among Symphysodon fishes: chromosomal rearrangements |
| title_sort |
variability of 18s rdna locus among symphysodon fishes: chromosomal rearrangements |
| publisher |
Journal of Fish Biology |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/18327 |
| _version_ |
1787142969819660288 |
| score |
11.653393 |