Cytogenetic studies in fishes of the genera Hassar, Platydoras and Opsodoras (Doradidae, Siluriformes) from Jarí and Xingú Rivers, Brazil
We studied the karyotypes of Hassar cf. orestis and an undescribed Hassar species from the Jarí River and Opsodoras ternetzi, H. orestis and Platydoras cf. costatus from the Xingú River, all with 2n = 58. Constitutive heterochromatin is located in the centromere in most metacentric pairs; in some ch...
| Autor principal: | Milhomem, Susana Suely Rodrigues |
|---|---|
| Outros Autores: | Souza, Augusto César Paes de, Nascimento, Aline Lira do, Carvalho, Jaime Ribeiro, Feldberg, Eliana, Pieczarka, Júlio César, Nagamachi, Cleusa Yoshiko |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Genetics and Molecular Biology
2020
|
| Assuntos: | |
| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/14959 |
| id |
oai:repositorio:1-14959 |
|---|---|
| recordtype |
dspace |
| spelling |
oai:repositorio:1-14959 Cytogenetic studies in fishes of the genera Hassar, Platydoras and Opsodoras (Doradidae, Siluriformes) from Jarí and Xingú Rivers, Brazil Milhomem, Susana Suely Rodrigues Souza, Augusto César Paes de Nascimento, Aline Lira do Carvalho, Jaime Ribeiro Feldberg, Eliana Pieczarka, Júlio César Nagamachi, Cleusa Yoshiko Brasil Centromere Chromosome Analysis Chromosome Arm Chromosome Banding Pattern Chromosome Inversion Chromosome Nor Chromosome Pairing Chromosome Structure Constitutive Heterochromatin Controlled Study Cytotaxonomy Female Fish Fish Genetics Gc Rich Sequence Hassar Hassar Orestis Karyotyping Male Evolution, Molecular Nonhuman Opsodoras Opsodoras Ternetzi Platydoras Platydoras Costatus River Siluriformes Species Comparison Doradidae Hassar (catfish) Hassar Orestis Opsodoras Opsodoras Ternetzi Pisces Platydoras Platydoras Costatus Siluriformes We studied the karyotypes of Hassar cf. orestis and an undescribed Hassar species from the Jarí River and Opsodoras ternetzi, H. orestis and Platydoras cf. costatus from the Xingú River, all with 2n = 58. Constitutive heterochromatin is located in the centromere in most metacentric pairs; in some chromosomes this banding is not present, or it is located on the whole chromosome arm or in the distal regions. The NOR is located on a single biarmed pair at a distal region of the short arm in H. cf. orestis, H. orestis and P. cf. costatus at a distal region of the long arm in O. ternetzi and at a proximal region of the long arm in the Hassar species. In all species (except for Hassar sp.) the CMA3 analysis revealed a rich G-C region coincident with the NOR. Probably inversions occurred in the NOR chromosome during the chromosomal differentiation of the Doradidae species here described. Copyright © 2008, Sociedade Brasileira de Genética. 2020-05-07T13:59:08Z 2020-05-07T13:59:08Z 2008 Artigo https://repositorio.inpa.gov.br/handle/1/14959 10.1590/S1415-47572008000200017 en Volume 31, Número 1 SUPPL. 1, Pags. 256-260 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 |
Brasil Centromere Chromosome Analysis Chromosome Arm Chromosome Banding Pattern Chromosome Inversion Chromosome Nor Chromosome Pairing Chromosome Structure Constitutive Heterochromatin Controlled Study Cytotaxonomy Female Fish Fish Genetics Gc Rich Sequence Hassar Hassar Orestis Karyotyping Male Evolution, Molecular Nonhuman Opsodoras Opsodoras Ternetzi Platydoras Platydoras Costatus River Siluriformes Species Comparison Doradidae Hassar (catfish) Hassar Orestis Opsodoras Opsodoras Ternetzi Pisces Platydoras Platydoras Costatus Siluriformes |
| spellingShingle |
Brasil Centromere Chromosome Analysis Chromosome Arm Chromosome Banding Pattern Chromosome Inversion Chromosome Nor Chromosome Pairing Chromosome Structure Constitutive Heterochromatin Controlled Study Cytotaxonomy Female Fish Fish Genetics Gc Rich Sequence Hassar Hassar Orestis Karyotyping Male Evolution, Molecular Nonhuman Opsodoras Opsodoras Ternetzi Platydoras Platydoras Costatus River Siluriformes Species Comparison Doradidae Hassar (catfish) Hassar Orestis Opsodoras Opsodoras Ternetzi Pisces Platydoras Platydoras Costatus Siluriformes Milhomem, Susana Suely Rodrigues Cytogenetic studies in fishes of the genera Hassar, Platydoras and Opsodoras (Doradidae, Siluriformes) from Jarí and Xingú Rivers, Brazil |
| topic_facet |
Brasil Centromere Chromosome Analysis Chromosome Arm Chromosome Banding Pattern Chromosome Inversion Chromosome Nor Chromosome Pairing Chromosome Structure Constitutive Heterochromatin Controlled Study Cytotaxonomy Female Fish Fish Genetics Gc Rich Sequence Hassar Hassar Orestis Karyotyping Male Evolution, Molecular Nonhuman Opsodoras Opsodoras Ternetzi Platydoras Platydoras Costatus River Siluriformes Species Comparison Doradidae Hassar (catfish) Hassar Orestis Opsodoras Opsodoras Ternetzi Pisces Platydoras Platydoras Costatus Siluriformes |
| description |
We studied the karyotypes of Hassar cf. orestis and an undescribed Hassar species from the Jarí River and Opsodoras ternetzi, H. orestis and Platydoras cf. costatus from the Xingú River, all with 2n = 58. Constitutive heterochromatin is located in the centromere in most metacentric pairs; in some chromosomes this banding is not present, or it is located on the whole chromosome arm or in the distal regions. The NOR is located on a single biarmed pair at a distal region of the short arm in H. cf. orestis, H. orestis and P. cf. costatus at a distal region of the long arm in O. ternetzi and at a proximal region of the long arm in the Hassar species. In all species (except for Hassar sp.) the CMA3 analysis revealed a rich G-C region coincident with the NOR. Probably inversions occurred in the NOR chromosome during the chromosomal differentiation of the Doradidae species here described. Copyright © 2008, Sociedade Brasileira de Genética. |
| format |
Artigo |
| author |
Milhomem, Susana Suely Rodrigues |
| author2 |
Souza, Augusto César Paes de Nascimento, Aline Lira do Carvalho, Jaime Ribeiro Feldberg, Eliana Pieczarka, Júlio César Nagamachi, Cleusa Yoshiko |
| author2Str |
Souza, Augusto César Paes de Nascimento, Aline Lira do Carvalho, Jaime Ribeiro Feldberg, Eliana Pieczarka, Júlio César Nagamachi, Cleusa Yoshiko |
| title |
Cytogenetic studies in fishes of the genera Hassar, Platydoras and Opsodoras (Doradidae, Siluriformes) from Jarí and Xingú Rivers, Brazil |
| title_short |
Cytogenetic studies in fishes of the genera Hassar, Platydoras and Opsodoras (Doradidae, Siluriformes) from Jarí and Xingú Rivers, Brazil |
| title_full |
Cytogenetic studies in fishes of the genera Hassar, Platydoras and Opsodoras (Doradidae, Siluriformes) from Jarí and Xingú Rivers, Brazil |
| title_fullStr |
Cytogenetic studies in fishes of the genera Hassar, Platydoras and Opsodoras (Doradidae, Siluriformes) from Jarí and Xingú Rivers, Brazil |
| title_full_unstemmed |
Cytogenetic studies in fishes of the genera Hassar, Platydoras and Opsodoras (Doradidae, Siluriformes) from Jarí and Xingú Rivers, Brazil |
| title_sort |
cytogenetic studies in fishes of the genera hassar, platydoras and opsodoras (doradidae, siluriformes) from jarí and xingú rivers, brazil |
| publisher |
Genetics and Molecular Biology |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/14959 |
| _version_ |
1787141915242659840 |
| score |
11.755432 |