Geographical karyotypic variations and chromosome banding patterns in tropidurus hispidus (Sauria, iguanidae) from brazil

Detalhes bibliográficos
Autor(a) principal: Kasahara, Sanae [UNESP]
Data de Publicação: 1987
Outros Autores: Yonenaga-Yassuda, Yatiyo, Rodrigues, Miguel Trefaut
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1080/00087114.1987.10797808
http://hdl.handle.net/11449/228097
Resumo: Karyotypic data are presented for Tropidurus hispidus (Sauria, Iguani-dae) collected at six different localities in Brazil. The specimens from all the populations share the same basic 2n = 36 karyotype characterized by 12 macrochromosomes and 24 microchromosomes. The X is an acrocentric microchromosome and the Y, a minute microchromosome. The mechanism of sex determination is of XX:XY type. Geographical karyotypic variations related to the presence or the absence of a prominent secondary constriction in one pair of macrochromosomes and to different sites of the nucleolar organizer regions (NORs) were found. Chromosome polymorphisms related to the size of the secondary constriction, the differential activity of NORs and the amount of constitutive heterochromatin were observed in specimens from some populations. G-and R-banding patterns were obtained for the first time in T. hispidus after «in vivo» treatment with 5-bromodeoxyuridine (BrdU). © 1987 Taylor & Francis Group, LLC.
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spelling Geographical karyotypic variations and chromosome banding patterns in tropidurus hispidus (Sauria, iguanidae) from brazilKaryotypic data are presented for Tropidurus hispidus (Sauria, Iguani-dae) collected at six different localities in Brazil. The specimens from all the populations share the same basic 2n = 36 karyotype characterized by 12 macrochromosomes and 24 microchromosomes. The X is an acrocentric microchromosome and the Y, a minute microchromosome. The mechanism of sex determination is of XX:XY type. Geographical karyotypic variations related to the presence or the absence of a prominent secondary constriction in one pair of macrochromosomes and to different sites of the nucleolar organizer regions (NORs) were found. Chromosome polymorphisms related to the size of the secondary constriction, the differential activity of NORs and the amount of constitutive heterochromatin were observed in specimens from some populations. G-and R-banding patterns were obtained for the first time in T. hispidus after «in vivo» treatment with 5-bromodeoxyuridine (BrdU). © 1987 Taylor & Francis Group, LLC.Departamento de Biologia Instituto de Biociencias Universidade Estadual Paulista Julio de Mesquita Filho, CP 178, Rio Claro, SP, 13500Departamento de Biologia Instituto de Biociencias Universidade de Sao Paulo, CP 11461, Sao Paulo, SP, 05499Departamento de Sistematica e Ecologia Universidade Federal da Paraiba, Joao Pessoa, PB, 58000Departamento de Biologia Instituto de Biociencias Universidade Estadual Paulista Julio de Mesquita Filho, CP 178, Rio Claro, SP, 13500Universidade Estadual Paulista (UNESP)Universidade de São Paulo (USP)Universidade Federal da ParaibaKasahara, Sanae [UNESP]Yonenaga-Yassuda, YatiyoRodrigues, Miguel Trefaut2022-04-29T07:26:38Z2022-04-29T07:26:38Z1987-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article43-57http://dx.doi.org/10.1080/00087114.1987.10797808Caryologia, v. 40, n. 1-2, p. 43-57, 1987.2165-53910008-7114http://hdl.handle.net/11449/22809710.1080/00087114.1987.107978082-s2.0-84954868208Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCaryologiainfo:eu-repo/semantics/openAccess2022-04-29T07:26:38Zoai:repositorio.unesp.br:11449/228097Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-29T07:26:38Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Geographical karyotypic variations and chromosome banding patterns in tropidurus hispidus (Sauria, iguanidae) from brazil
title Geographical karyotypic variations and chromosome banding patterns in tropidurus hispidus (Sauria, iguanidae) from brazil
spellingShingle Geographical karyotypic variations and chromosome banding patterns in tropidurus hispidus (Sauria, iguanidae) from brazil
Kasahara, Sanae [UNESP]
title_short Geographical karyotypic variations and chromosome banding patterns in tropidurus hispidus (Sauria, iguanidae) from brazil
title_full Geographical karyotypic variations and chromosome banding patterns in tropidurus hispidus (Sauria, iguanidae) from brazil
title_fullStr Geographical karyotypic variations and chromosome banding patterns in tropidurus hispidus (Sauria, iguanidae) from brazil
title_full_unstemmed Geographical karyotypic variations and chromosome banding patterns in tropidurus hispidus (Sauria, iguanidae) from brazil
title_sort Geographical karyotypic variations and chromosome banding patterns in tropidurus hispidus (Sauria, iguanidae) from brazil
author Kasahara, Sanae [UNESP]
author_facet Kasahara, Sanae [UNESP]
Yonenaga-Yassuda, Yatiyo
Rodrigues, Miguel Trefaut
author_role author
author2 Yonenaga-Yassuda, Yatiyo
Rodrigues, Miguel Trefaut
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
Universidade de São Paulo (USP)
Universidade Federal da Paraiba
dc.contributor.author.fl_str_mv Kasahara, Sanae [UNESP]
Yonenaga-Yassuda, Yatiyo
Rodrigues, Miguel Trefaut
description Karyotypic data are presented for Tropidurus hispidus (Sauria, Iguani-dae) collected at six different localities in Brazil. The specimens from all the populations share the same basic 2n = 36 karyotype characterized by 12 macrochromosomes and 24 microchromosomes. The X is an acrocentric microchromosome and the Y, a minute microchromosome. The mechanism of sex determination is of XX:XY type. Geographical karyotypic variations related to the presence or the absence of a prominent secondary constriction in one pair of macrochromosomes and to different sites of the nucleolar organizer regions (NORs) were found. Chromosome polymorphisms related to the size of the secondary constriction, the differential activity of NORs and the amount of constitutive heterochromatin were observed in specimens from some populations. G-and R-banding patterns were obtained for the first time in T. hispidus after «in vivo» treatment with 5-bromodeoxyuridine (BrdU). © 1987 Taylor & Francis Group, LLC.
publishDate 1987
dc.date.none.fl_str_mv 1987-01-01
2022-04-29T07:26:38Z
2022-04-29T07:26:38Z
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/10.1080/00087114.1987.10797808
Caryologia, v. 40, n. 1-2, p. 43-57, 1987.
2165-5391
0008-7114
http://hdl.handle.net/11449/228097
10.1080/00087114.1987.10797808
2-s2.0-84954868208
url http://dx.doi.org/10.1080/00087114.1987.10797808
http://hdl.handle.net/11449/228097
identifier_str_mv Caryologia, v. 40, n. 1-2, p. 43-57, 1987.
2165-5391
0008-7114
10.1080/00087114.1987.10797808
2-s2.0-84954868208
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Caryologia
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 43-57
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
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