Cytotaxonomy and karyoevolution of the genus Crenicichla (Perciformes, Cichlidae)
Karyotypes of six cichlid species of the genus Crenicichla were investigated. The species C. cincta, C. inpa, C. reticulata, C. lugubris, and C. cf. johanna were collected from Amazon basin, and C. britskii was collected from the Paraná-Paraguai basin. All of the analysed species showed 2n = 48 chro...
| Autor principal: | Benzequem, Denise Corrêa |
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| Outros Autores: | Feldberg, Eliana, Porto, Jorge Ivan Rebelo, Gross, Maria Claudia, Zuanon, Jansen |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Genetics and Molecular Biology
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/14957 |
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oai:repositorio:1-14957 |
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oai:repositorio:1-14957 Cytotaxonomy and karyoevolution of the genus Crenicichla (Perciformes, Cichlidae) Benzequem, Denise Corrêa Feldberg, Eliana Porto, Jorge Ivan Rebelo Gross, Maria Claudia Zuanon, Jansen C Banding Chromosomal Localization Chromosome Analysis Chromosome Marker Chromosome Nor Chromosome Pairing Cichlid Cistron Constitutive Heterochromatin Controlled Study Crenicichla Crenicichla Britskii Crenicichla Cincta Crenicichla Inpa Crenicichla Johanna Crenicichla Lugubris Crenicichla Reticulata Cytotaxonomy Female Fish Genetics Karyotype Male Evolution, Molecular Nonhuman Perciformes River Species Comparison Species Difference Cichlidae Crenicara Crenicichla Crenicichla Lugubris Perciformes Karyotypes of six cichlid species of the genus Crenicichla were investigated. The species C. cincta, C. inpa, C. reticulata, C. lugubris, and C. cf. johanna were collected from Amazon basin, and C. britskii was collected from the Paraná-Paraguai basin. All of the analysed species showed 2n = 48 chromosomes; however, C. cincta, C. lugubris, C. cf. johanna, and C. britskii had a karyotype formula of 8M-SM+40ST-A, FN = 56, while C. inpa and C. reticulata exhibited the formula 6M-SM+42ST-A, FN = 54. Analysis of active Ag-NORs revealed two NOR-bearing chromosomes in all species; however, theses cistrons were located on different chromosome pairs and/or in different chromosome locations in each species. This condition bears evolutionary significance, since it is the main chromosome marker of the process of karyotypic evolution among the species of the genus Crenicichla. In general, C-banding revealed a similar constitutive heterochromatin pattern in all species, although it was possible to detect some features that led us to infer that Crenicichla also presents a species-specific heterochromatin pattern. Copyright © 2008, Sociedade Brasileira de Genética. 2020-05-07T13:59:07Z 2020-05-07T13:59:07Z 2008 Artigo https://repositorio.inpa.gov.br/handle/1/14957 10.1590/S1415-47572008000200016 en Volume 31, Número 1 SUPPL. 1, Pags. 250-255 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Genetics and Molecular Biology |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
C Banding Chromosomal Localization Chromosome Analysis Chromosome Marker Chromosome Nor Chromosome Pairing Cichlid Cistron Constitutive Heterochromatin Controlled Study Crenicichla Crenicichla Britskii Crenicichla Cincta Crenicichla Inpa Crenicichla Johanna Crenicichla Lugubris Crenicichla Reticulata Cytotaxonomy Female Fish Genetics Karyotype Male Evolution, Molecular Nonhuman Perciformes River Species Comparison Species Difference Cichlidae Crenicara Crenicichla Crenicichla Lugubris Perciformes |
| spellingShingle |
C Banding Chromosomal Localization Chromosome Analysis Chromosome Marker Chromosome Nor Chromosome Pairing Cichlid Cistron Constitutive Heterochromatin Controlled Study Crenicichla Crenicichla Britskii Crenicichla Cincta Crenicichla Inpa Crenicichla Johanna Crenicichla Lugubris Crenicichla Reticulata Cytotaxonomy Female Fish Genetics Karyotype Male Evolution, Molecular Nonhuman Perciformes River Species Comparison Species Difference Cichlidae Crenicara Crenicichla Crenicichla Lugubris Perciformes Benzequem, Denise Corrêa Cytotaxonomy and karyoevolution of the genus Crenicichla (Perciformes, Cichlidae) |
| topic_facet |
C Banding Chromosomal Localization Chromosome Analysis Chromosome Marker Chromosome Nor Chromosome Pairing Cichlid Cistron Constitutive Heterochromatin Controlled Study Crenicichla Crenicichla Britskii Crenicichla Cincta Crenicichla Inpa Crenicichla Johanna Crenicichla Lugubris Crenicichla Reticulata Cytotaxonomy Female Fish Genetics Karyotype Male Evolution, Molecular Nonhuman Perciformes River Species Comparison Species Difference Cichlidae Crenicara Crenicichla Crenicichla Lugubris Perciformes |
| description |
Karyotypes of six cichlid species of the genus Crenicichla were investigated. The species C. cincta, C. inpa, C. reticulata, C. lugubris, and C. cf. johanna were collected from Amazon basin, and C. britskii was collected from the Paraná-Paraguai basin. All of the analysed species showed 2n = 48 chromosomes; however, C. cincta, C. lugubris, C. cf. johanna, and C. britskii had a karyotype formula of 8M-SM+40ST-A, FN = 56, while C. inpa and C. reticulata exhibited the formula 6M-SM+42ST-A, FN = 54. Analysis of active Ag-NORs revealed two NOR-bearing chromosomes in all species; however, theses cistrons were located on different chromosome pairs and/or in different chromosome locations in each species. This condition bears evolutionary significance, since it is the main chromosome marker of the process of karyotypic evolution among the species of the genus Crenicichla. In general, C-banding revealed a similar constitutive heterochromatin pattern in all species, although it was possible to detect some features that led us to infer that Crenicichla also presents a species-specific heterochromatin pattern. Copyright © 2008, Sociedade Brasileira de Genética. |
| format |
Artigo |
| author |
Benzequem, Denise Corrêa |
| author2 |
Feldberg, Eliana Porto, Jorge Ivan Rebelo Gross, Maria Claudia Zuanon, Jansen |
| author2Str |
Feldberg, Eliana Porto, Jorge Ivan Rebelo Gross, Maria Claudia Zuanon, Jansen |
| title |
Cytotaxonomy and karyoevolution of the genus Crenicichla (Perciformes, Cichlidae) |
| title_short |
Cytotaxonomy and karyoevolution of the genus Crenicichla (Perciformes, Cichlidae) |
| title_full |
Cytotaxonomy and karyoevolution of the genus Crenicichla (Perciformes, Cichlidae) |
| title_fullStr |
Cytotaxonomy and karyoevolution of the genus Crenicichla (Perciformes, Cichlidae) |
| title_full_unstemmed |
Cytotaxonomy and karyoevolution of the genus Crenicichla (Perciformes, Cichlidae) |
| title_sort |
cytotaxonomy and karyoevolution of the genus crenicichla (perciformes, cichlidae) |
| publisher |
Genetics and Molecular Biology |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/14957 |
| _version_ |
1787142933451898880 |
| score |
11.755432 |