B-chromosomes in two Brazilian populations of Dendropsophus nanus (Anura, Hylidae)
Main Author: | |
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Publication Date: | 2006 |
Other Authors: | , , |
Format: | Article |
Language: | eng |
Source: | Repositório Institucional da UNESP |
Download full: | http://dx.doi.org/10.1590/S1415-47572006000200010 http://hdl.handle.net/11449/30484 |
Summary: | We report on the presence of B-chromosomes in two populations of Dendropsophus nanus (= Hyla nana Boulenger, 1889) from São Paulo State, Brazil. Such chromosomes were observed in 4 out of 43 specimens (9.3%) and in 9 out of 15 specimens (60%) from the municipalities of Nova Aliança and Botucatu, respectively. The karyotype 2n = 30 + 1B found in D. nanus was similar to that of other species with 2n = 30 chromosomes, except for the presence of an additional small telocentric chromosome. In one specimen from Botucatu, cells with one to three extra chromosomes were observed. These B-chromosomes appeared as univalent in meiosis I and did not bear a nucleolar organizer region or exhibit constitutive heterochromatin. |
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B-chromosomes in two Brazilian populations of Dendropsophus nanus (Anura, Hylidae)Anura, b-chromosomeCytogeneticDendropsophussupernumerary chromosomeWe report on the presence of B-chromosomes in two populations of Dendropsophus nanus (= Hyla nana Boulenger, 1889) from São Paulo State, Brazil. Such chromosomes were observed in 4 out of 43 specimens (9.3%) and in 9 out of 15 specimens (60%) from the municipalities of Nova Aliança and Botucatu, respectively. The karyotype 2n = 30 + 1B found in D. nanus was similar to that of other species with 2n = 30 chromosomes, except for the presence of an additional small telocentric chromosome. In one specimen from Botucatu, cells with one to three extra chromosomes were observed. These B-chromosomes appeared as univalent in meiosis I and did not bear a nucleolar organizer region or exhibit constitutive heterochromatin.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Universidade Estadual de Campinas Instituto de Biologia Departamento de Biologia CelularUniversidade Estadual Paulista Instituto de Biociências Departamento de Zoologia e BotânicaUniversidade Estadual Paulista Departamento de ZoologiaUniversidade Estadual Paulista Instituto de Biociências Departamento de Zoologia e BotânicaUniversidade Estadual Paulista Departamento de ZoologiaSociedade Brasileira de GenéticaUniversidade Estadual de Campinas (UNICAMP)Universidade Estadual Paulista (Unesp)Medeiros, Lilian R.Rossa-Feres, Denise C. [UNESP]Jim, Jorge [UNESP]Recco-Pimentel, Shirlei M.2014-05-20T15:17:29Z2014-05-20T15:17:29Z2006-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article257-262application/pdfhttp://dx.doi.org/10.1590/S1415-47572006000200010Genetics and Molecular Biology. Sociedade Brasileira de Genética, v. 29, n. 2, p. 257-262, 2006.1415-4757http://hdl.handle.net/11449/3048410.1590/S1415-47572006000200010S1415-47572006000200010S1415-47572006000200010.pdfSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengGenetics and Molecular Biology1.4930,638info:eu-repo/semantics/openAccess2023-12-31T06:19:32Zoai:repositorio.unesp.br:11449/30484Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:47:00.379345Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
B-chromosomes in two Brazilian populations of Dendropsophus nanus (Anura, Hylidae) |
title |
B-chromosomes in two Brazilian populations of Dendropsophus nanus (Anura, Hylidae) |
spellingShingle |
B-chromosomes in two Brazilian populations of Dendropsophus nanus (Anura, Hylidae) Medeiros, Lilian R. Anura, b-chromosome Cytogenetic Dendropsophus supernumerary chromosome |
title_short |
B-chromosomes in two Brazilian populations of Dendropsophus nanus (Anura, Hylidae) |
title_full |
B-chromosomes in two Brazilian populations of Dendropsophus nanus (Anura, Hylidae) |
title_fullStr |
B-chromosomes in two Brazilian populations of Dendropsophus nanus (Anura, Hylidae) |
title_full_unstemmed |
B-chromosomes in two Brazilian populations of Dendropsophus nanus (Anura, Hylidae) |
title_sort |
B-chromosomes in two Brazilian populations of Dendropsophus nanus (Anura, Hylidae) |
author |
Medeiros, Lilian R. |
author_facet |
Medeiros, Lilian R. Rossa-Feres, Denise C. [UNESP] Jim, Jorge [UNESP] Recco-Pimentel, Shirlei M. |
author_role |
author |
author2 |
Rossa-Feres, Denise C. [UNESP] Jim, Jorge [UNESP] Recco-Pimentel, Shirlei M. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual de Campinas (UNICAMP) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Medeiros, Lilian R. Rossa-Feres, Denise C. [UNESP] Jim, Jorge [UNESP] Recco-Pimentel, Shirlei M. |
dc.subject.por.fl_str_mv |
Anura, b-chromosome Cytogenetic Dendropsophus supernumerary chromosome |
topic |
Anura, b-chromosome Cytogenetic Dendropsophus supernumerary chromosome |
description |
We report on the presence of B-chromosomes in two populations of Dendropsophus nanus (= Hyla nana Boulenger, 1889) from São Paulo State, Brazil. Such chromosomes were observed in 4 out of 43 specimens (9.3%) and in 9 out of 15 specimens (60%) from the municipalities of Nova Aliança and Botucatu, respectively. The karyotype 2n = 30 + 1B found in D. nanus was similar to that of other species with 2n = 30 chromosomes, except for the presence of an additional small telocentric chromosome. In one specimen from Botucatu, cells with one to three extra chromosomes were observed. These B-chromosomes appeared as univalent in meiosis I and did not bear a nucleolar organizer region or exhibit constitutive heterochromatin. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-01-01 2014-05-20T15:17:29Z 2014-05-20T15:17:29Z |
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/10.1590/S1415-47572006000200010 Genetics and Molecular Biology. Sociedade Brasileira de Genética, v. 29, n. 2, p. 257-262, 2006. 1415-4757 http://hdl.handle.net/11449/30484 10.1590/S1415-47572006000200010 S1415-47572006000200010 S1415-47572006000200010.pdf |
url |
http://dx.doi.org/10.1590/S1415-47572006000200010 http://hdl.handle.net/11449/30484 |
identifier_str_mv |
Genetics and Molecular Biology. Sociedade Brasileira de Genética, v. 29, n. 2, p. 257-262, 2006. 1415-4757 10.1590/S1415-47572006000200010 S1415-47572006000200010 S1415-47572006000200010.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Genetics and Molecular Biology 1.493 0,638 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
257-262 application/pdf |
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 |
SciELO 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_ |
1808129357723467776 |