First cytogenetic description of the species Rhamdella microcephala (Pisces, Hepapteridae)

Detalhes bibliográficos
Autor(a) principal: Fonseca, Yris Maria
Data de Publicação: 2003
Outros Autores: Oliveira, Claudio, Foresti, Fausto, Maistro, Edson Luis
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1508/cytologia.68.31
http://hdl.handle.net/11449/67210
Resumo: Cytogenetic studies were carried out on Rhamdella microcephala collected from the headwaters of the Machado river, a tributary of the Sapucaí river, Minas Gerais, Brazil. Sixteen specimens exhibited 2n=56 chromosomes, with 18 metacentrics, 30 submetacentrics and 8 subtelocentric-acrocentrics (FN=84). The nucleolar organizing regions (NORs) were identified in the interstitial position on the long arm of a submetacentric pair (pair 12). Chromomycin A3 staining evidenced only the NOR-bearing segments. Positive C-band segments were identified in a pericentromeric position in most of the chromosomes and the NOR-bearing segments were also C-band positive. Some aspects related to the chromosomal characteristics of Rhamdella microcephala are discussed.
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spelling First cytogenetic description of the species Rhamdella microcephala (Pisces, Hepapteridae)C-bandCytogeneticsHepapteridaeNORRhamdella microcephalaMicrocephalaPiscesCytogenetic studies were carried out on Rhamdella microcephala collected from the headwaters of the Machado river, a tributary of the Sapucaí river, Minas Gerais, Brazil. Sixteen specimens exhibited 2n=56 chromosomes, with 18 metacentrics, 30 submetacentrics and 8 subtelocentric-acrocentrics (FN=84). The nucleolar organizing regions (NORs) were identified in the interstitial position on the long arm of a submetacentric pair (pair 12). Chromomycin A3 staining evidenced only the NOR-bearing segments. Positive C-band segments were identified in a pericentromeric position in most of the chromosomes and the NOR-bearing segments were also C-band positive. Some aspects related to the chromosomal characteristics of Rhamdella microcephala are discussed.Inst. de Farmácia/Nutri. UNIFENAS, 37130-000, Alfenas, MGDepartamento de Morfologia Instituto de Biociências Câmpus de Botucatu, 18618-000, Botucatu, SPUniversidade Federal de Alfenas (UNIFAL)Universidade Estadual Paulista (Unesp)Fonseca, Yris MariaOliveira, ClaudioForesti, FaustoMaistro, Edson Luis2014-05-27T11:20:37Z2014-05-27T11:20:37Z2003-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article31-34application/pdfhttp://dx.doi.org/10.1508/cytologia.68.31Cytologia, v. 68, n. 1, p. 31-34, 2003.0011-4545http://hdl.handle.net/11449/6721010.1508/cytologia.68.312-s2.0-00373636012-s2.0-0037363601.pdf080479394484636747875216130383150000-0003-0757-7876Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCytologia0.4810,233info:eu-repo/semantics/openAccess2023-10-20T06:10:21Zoai:repositorio.unesp.br:11449/67210Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-20T06:10:21Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv First cytogenetic description of the species Rhamdella microcephala (Pisces, Hepapteridae)
title First cytogenetic description of the species Rhamdella microcephala (Pisces, Hepapteridae)
spellingShingle First cytogenetic description of the species Rhamdella microcephala (Pisces, Hepapteridae)
Fonseca, Yris Maria
C-band
Cytogenetics
Hepapteridae
NOR
Rhamdella microcephala
Microcephala
Pisces
title_short First cytogenetic description of the species Rhamdella microcephala (Pisces, Hepapteridae)
title_full First cytogenetic description of the species Rhamdella microcephala (Pisces, Hepapteridae)
title_fullStr First cytogenetic description of the species Rhamdella microcephala (Pisces, Hepapteridae)
title_full_unstemmed First cytogenetic description of the species Rhamdella microcephala (Pisces, Hepapteridae)
title_sort First cytogenetic description of the species Rhamdella microcephala (Pisces, Hepapteridae)
author Fonseca, Yris Maria
author_facet Fonseca, Yris Maria
Oliveira, Claudio
Foresti, Fausto
Maistro, Edson Luis
author_role author
author2 Oliveira, Claudio
Foresti, Fausto
Maistro, Edson Luis
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Federal de Alfenas (UNIFAL)
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Fonseca, Yris Maria
Oliveira, Claudio
Foresti, Fausto
Maistro, Edson Luis
dc.subject.por.fl_str_mv C-band
Cytogenetics
Hepapteridae
NOR
Rhamdella microcephala
Microcephala
Pisces
topic C-band
Cytogenetics
Hepapteridae
NOR
Rhamdella microcephala
Microcephala
Pisces
description Cytogenetic studies were carried out on Rhamdella microcephala collected from the headwaters of the Machado river, a tributary of the Sapucaí river, Minas Gerais, Brazil. Sixteen specimens exhibited 2n=56 chromosomes, with 18 metacentrics, 30 submetacentrics and 8 subtelocentric-acrocentrics (FN=84). The nucleolar organizing regions (NORs) were identified in the interstitial position on the long arm of a submetacentric pair (pair 12). Chromomycin A3 staining evidenced only the NOR-bearing segments. Positive C-band segments were identified in a pericentromeric position in most of the chromosomes and the NOR-bearing segments were also C-band positive. Some aspects related to the chromosomal characteristics of Rhamdella microcephala are discussed.
publishDate 2003
dc.date.none.fl_str_mv 2003-03-01
2014-05-27T11:20:37Z
2014-05-27T11:20:37Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1508/cytologia.68.31
Cytologia, v. 68, n. 1, p. 31-34, 2003.
0011-4545
http://hdl.handle.net/11449/67210
10.1508/cytologia.68.31
2-s2.0-0037363601
2-s2.0-0037363601.pdf
0804793944846367
4787521613038315
0000-0003-0757-7876
url http://dx.doi.org/10.1508/cytologia.68.31
http://hdl.handle.net/11449/67210
identifier_str_mv Cytologia, v. 68, n. 1, p. 31-34, 2003.
0011-4545
10.1508/cytologia.68.31
2-s2.0-0037363601
2-s2.0-0037363601.pdf
0804793944846367
4787521613038315
0000-0003-0757-7876
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Cytologia
0.481
0,233
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 31-34
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1799964637552181248

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