Physical mapping of the 18S and 5S ribosomal genes in nine Characidae species (Teleostei, Characiformes)
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Genetics and Molecular Biology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000200009 |
Resumo: | Characidae is one of the largest fish families of the Neotropical region, and presenting a pronounced morphological variability, certainly does not constitute a monophyletic group. The cytogenetical data also show a large chromosomal variation and can provide important information for a better understanding of the relationships between the species of this group. 18S and 5S rDNA probes were used in the present study for the chromosomal mapping in different Characidae species from the São Francisco River (Astyanax lacustris, Astyanax scabripinnis, Hasemania nana, Piabina argentea, Orthospinus franciscensis, Serrapinnus heterodon, Serrapinnus piaba and Myleus micans) and Alto Paraná (Astyanax altiparanae) basins. Species with a single pair of chromosomes bearing the nucleolar organizing regions (NORs) were identified, as well as species with multiple NORs, up to a maximum of seven 18S rDNA sites. The number of 5S rDNA site was also not constant, varying from two to eight. The mapping of the ribosomal genes was useful for the characterization and differentiation of the analyzed species. |
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Physical mapping of the 18S and 5S ribosomal genes in nine Characidae species (Teleostei, Characiformes)cytogeneticsNeotropical fishfluorescent in situ hybridization (FISH)rDNA probeCharacidae is one of the largest fish families of the Neotropical region, and presenting a pronounced morphological variability, certainly does not constitute a monophyletic group. The cytogenetical data also show a large chromosomal variation and can provide important information for a better understanding of the relationships between the species of this group. 18S and 5S rDNA probes were used in the present study for the chromosomal mapping in different Characidae species from the São Francisco River (Astyanax lacustris, Astyanax scabripinnis, Hasemania nana, Piabina argentea, Orthospinus franciscensis, Serrapinnus heterodon, Serrapinnus piaba and Myleus micans) and Alto Paraná (Astyanax altiparanae) basins. Species with a single pair of chromosomes bearing the nucleolar organizing regions (NORs) were identified, as well as species with multiple NORs, up to a maximum of seven 18S rDNA sites. The number of 5S rDNA site was also not constant, varying from two to eight. The mapping of the ribosomal genes was useful for the characterization and differentiation of the analyzed species.Sociedade Brasileira de Genética2008-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000200009Genetics and Molecular Biology v.31 n.1 suppl.0 2008reponame:Genetics and Molecular Biologyinstname:Sociedade Brasileira de Genética (SBG)instacron:SBG10.1590/S1415-47572008000200009info:eu-repo/semantics/openAccessPeres,Wellington Adriano MoreiraBertollo,Luiz Antonio CarlosMoreira Filho,Orlandoeng2008-06-03T00:00:00Zoai:scielo:S1415-47572008000200009Revistahttp://www.gmb.org.br/ONGhttps://old.scielo.br/oai/scielo-oai.php||editor@gmb.org.br1678-46851415-4757opendoar:2008-06-03T00:00Genetics and Molecular Biology - Sociedade Brasileira de Genética (SBG)false |
dc.title.none.fl_str_mv |
Physical mapping of the 18S and 5S ribosomal genes in nine Characidae species (Teleostei, Characiformes) |
title |
Physical mapping of the 18S and 5S ribosomal genes in nine Characidae species (Teleostei, Characiformes) |
spellingShingle |
Physical mapping of the 18S and 5S ribosomal genes in nine Characidae species (Teleostei, Characiformes) Peres,Wellington Adriano Moreira cytogenetics Neotropical fish fluorescent in situ hybridization (FISH) rDNA probe |
title_short |
Physical mapping of the 18S and 5S ribosomal genes in nine Characidae species (Teleostei, Characiformes) |
title_full |
Physical mapping of the 18S and 5S ribosomal genes in nine Characidae species (Teleostei, Characiformes) |
title_fullStr |
Physical mapping of the 18S and 5S ribosomal genes in nine Characidae species (Teleostei, Characiformes) |
title_full_unstemmed |
Physical mapping of the 18S and 5S ribosomal genes in nine Characidae species (Teleostei, Characiformes) |
title_sort |
Physical mapping of the 18S and 5S ribosomal genes in nine Characidae species (Teleostei, Characiformes) |
author |
Peres,Wellington Adriano Moreira |
author_facet |
Peres,Wellington Adriano Moreira Bertollo,Luiz Antonio Carlos Moreira Filho,Orlando |
author_role |
author |
author2 |
Bertollo,Luiz Antonio Carlos Moreira Filho,Orlando |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Peres,Wellington Adriano Moreira Bertollo,Luiz Antonio Carlos Moreira Filho,Orlando |
dc.subject.por.fl_str_mv |
cytogenetics Neotropical fish fluorescent in situ hybridization (FISH) rDNA probe |
topic |
cytogenetics Neotropical fish fluorescent in situ hybridization (FISH) rDNA probe |
description |
Characidae is one of the largest fish families of the Neotropical region, and presenting a pronounced morphological variability, certainly does not constitute a monophyletic group. The cytogenetical data also show a large chromosomal variation and can provide important information for a better understanding of the relationships between the species of this group. 18S and 5S rDNA probes were used in the present study for the chromosomal mapping in different Characidae species from the São Francisco River (Astyanax lacustris, Astyanax scabripinnis, Hasemania nana, Piabina argentea, Orthospinus franciscensis, Serrapinnus heterodon, Serrapinnus piaba and Myleus micans) and Alto Paraná (Astyanax altiparanae) basins. Species with a single pair of chromosomes bearing the nucleolar organizing regions (NORs) were identified, as well as species with multiple NORs, up to a maximum of seven 18S rDNA sites. The number of 5S rDNA site was also not constant, varying from two to eight. The mapping of the ribosomal genes was useful for the characterization and differentiation of the analyzed species. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000200009 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000200009 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1415-47572008000200009 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Genética |
publisher.none.fl_str_mv |
Sociedade Brasileira de Genética |
dc.source.none.fl_str_mv |
Genetics and Molecular Biology v.31 n.1 suppl.0 2008 reponame:Genetics and Molecular Biology instname:Sociedade Brasileira de Genética (SBG) instacron:SBG |
instname_str |
Sociedade Brasileira de Genética (SBG) |
instacron_str |
SBG |
institution |
SBG |
reponame_str |
Genetics and Molecular Biology |
collection |
Genetics and Molecular Biology |
repository.name.fl_str_mv |
Genetics and Molecular Biology - Sociedade Brasileira de Genética (SBG) |
repository.mail.fl_str_mv |
||editor@gmb.org.br |
_version_ |
1752122381095141376 |