Karyotype analysis in eight species of Vernonia (Vernonieae, Asteraceae) from South America

Autores
Angulo, María Betiana; Dematteis, Massimiliano
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fil: Angulo, María Betiana. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina.
Fil: Angulo, María Betiana. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina.
Fil: Dematteis, Massimiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina.
The somatic chromosome number and karyotypes of eight species of Vernonia were analyzed. The results include the first chromosome count for V. hexantha Sch.Bip. (2n=30), which is diploid with base number x=15. The karyotypes are analyzed for the first time for two cytotypes of Vernonia cognata Less. (2n=40= 28m + 12sm; 2n=80= 48m + 32sm), V. hexantha (2n=30= 24m+6sm), V. membranacea Gardner (2n=34= 24 + 10sm), V. salzmannii DC. (2n=20= 10m + 10sm) and V. verbascifolia Less. (2n=20= 12m + 8sm). All the studied species showed a predominance of metacentric chromosomes, with a lower proportion of submetacentric pairs. In V. brev- ifolia Less. 0 to 3 accessory or B chromosomes were found. The chromosomes varying in length from 1.25 to 3.98 μm. The differences in the symmetry of the karyotypes were small, for which it is possible to assume that the great diversification of the genus has been accompanied by very small changes in the structure of the chromosomes.
Fuente
Caryologia, 2009, vol. 62, no. 2, p. 81-88.
Materia
Chromosome numbers
Karyotypes
Symmetry
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
Institución
Universidad Nacional del Nordeste
OAI Identificador
oai:repositorio.unne.edu.ar:123456789/60154
Acceder
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oai_identifier_str oai:repositorio.unne.edu.ar:123456789/60154
network_acronym_str RIUNNE
repository_id_str 4871
network_name_str Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
spelling Karyotype analysis in eight species of Vernonia (Vernonieae, Asteraceae) from South AmericaAngulo, María BetianaDematteis, MassimilianoChromosome numbersKaryotypesSymmetryFil: Angulo, María Betiana. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina.Fil: Angulo, María Betiana. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina.Fil: Dematteis, Massimiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina.The somatic chromosome number and karyotypes of eight species of Vernonia were analyzed. The results include the first chromosome count for V. hexantha Sch.Bip. (2n=30), which is diploid with base number x=15. The karyotypes are analyzed for the first time for two cytotypes of Vernonia cognata Less. (2n=40= 28m + 12sm; 2n=80= 48m + 32sm), V. hexantha (2n=30= 24m+6sm), V. membranacea Gardner (2n=34= 24 + 10sm), V. salzmannii DC. (2n=20= 10m + 10sm) and V. verbascifolia Less. (2n=20= 12m + 8sm). All the studied species showed a predominance of metacentric chromosomes, with a lower proportion of submetacentric pairs. In V. brev- ifolia Less. 0 to 3 accessory or B chromosomes were found. The chromosomes varying in length from 1.25 to 3.98 μm. The differences in the symmetry of the karyotypes were small, for which it is possible to assume that the great diversification of the genus has been accompanied by very small changes in the structure of the chromosomes.Firenze University Press2009info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfp. 81-88application/pdfAngulo, María Betiana y Dematteis, Massimiliano, 2009. Karyotype analysis in eight species of Vernonia (Vernonieae, Asteraceae) from South America. Caryologia. Florencia: Firenze University Press, vol. 62, no. 2, p. 81-88. E-ISSN 2165-5391. DOI https://doi.org/10.1080/00087114.2004.105896720008-7114http://repositorio.unne.edu.ar/handle/123456789/60154Caryologia, 2009, vol. 62, no. 2, p. 81-88.reponame:Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)instname:Universidad Nacional del Nordesteenghttps://doi.org/10.1080/00087114.2004.10589672info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/2.5/ar/Atribución-NoComercial-SinDerivadas 2.5 Argentina2026-09-24T12:44:09Zoai:repositorio.unne.edu.ar:123456789/60154instacron:UNNEInstitucionalhttp://repositorio.unne.edu.ar/Universidad públicaNo correspondehttp://repositorio.unne.edu.ar/oaiososa@bib.unne.edu.ar;sergio.alegria@unne.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:48712026-09-24 12:44:09.724Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) - Universidad Nacional del Nordestefalse
dc.title.none.fl_str_mv Karyotype analysis in eight species of Vernonia (Vernonieae, Asteraceae) from South America
title Karyotype analysis in eight species of Vernonia (Vernonieae, Asteraceae) from South America
spellingShingle Karyotype analysis in eight species of Vernonia (Vernonieae, Asteraceae) from South America
Angulo, María Betiana
Chromosome numbers
Karyotypes
Symmetry
title_short Karyotype analysis in eight species of Vernonia (Vernonieae, Asteraceae) from South America
title_full Karyotype analysis in eight species of Vernonia (Vernonieae, Asteraceae) from South America
title_fullStr Karyotype analysis in eight species of Vernonia (Vernonieae, Asteraceae) from South America
title_full_unstemmed Karyotype analysis in eight species of Vernonia (Vernonieae, Asteraceae) from South America
title_sort Karyotype analysis in eight species of Vernonia (Vernonieae, Asteraceae) from South America
dc.creator.none.fl_str_mv Angulo, María Betiana
Dematteis, Massimiliano
author Angulo, María Betiana
author_facet Angulo, María Betiana
Dematteis, Massimiliano
author_role author
author2 Dematteis, Massimiliano
author2_role author
dc.subject.none.fl_str_mv Chromosome numbers
Karyotypes
Symmetry
topic Chromosome numbers
Karyotypes
Symmetry
dc.description.none.fl_txt_mv Fil: Angulo, María Betiana. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina.
Fil: Angulo, María Betiana. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina.
Fil: Dematteis, Massimiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina.
The somatic chromosome number and karyotypes of eight species of Vernonia were analyzed. The results include the first chromosome count for V. hexantha Sch.Bip. (2n=30), which is diploid with base number x=15. The karyotypes are analyzed for the first time for two cytotypes of Vernonia cognata Less. (2n=40= 28m + 12sm; 2n=80= 48m + 32sm), V. hexantha (2n=30= 24m+6sm), V. membranacea Gardner (2n=34= 24 + 10sm), V. salzmannii DC. (2n=20= 10m + 10sm) and V. verbascifolia Less. (2n=20= 12m + 8sm). All the studied species showed a predominance of metacentric chromosomes, with a lower proportion of submetacentric pairs. In V. brev- ifolia Less. 0 to 3 accessory or B chromosomes were found. The chromosomes varying in length from 1.25 to 3.98 μm. The differences in the symmetry of the karyotypes were small, for which it is possible to assume that the great diversification of the genus has been accompanied by very small changes in the structure of the chromosomes.
description Fil: Angulo, María Betiana. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina.
publishDate 2009
dc.date.none.fl_str_mv 2009
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv Angulo, María Betiana y Dematteis, Massimiliano, 2009. Karyotype analysis in eight species of Vernonia (Vernonieae, Asteraceae) from South America. Caryologia. Florencia: Firenze University Press, vol. 62, no. 2, p. 81-88. E-ISSN 2165-5391. DOI https://doi.org/10.1080/00087114.2004.10589672
0008-7114
http://repositorio.unne.edu.ar/handle/123456789/60154
identifier_str_mv Angulo, María Betiana y Dematteis, Massimiliano, 2009. Karyotype analysis in eight species of Vernonia (Vernonieae, Asteraceae) from South America. Caryologia. Florencia: Firenze University Press, vol. 62, no. 2, p. 81-88. E-ISSN 2165-5391. DOI https://doi.org/10.1080/00087114.2004.10589672
0008-7114
url http://repositorio.unne.edu.ar/handle/123456789/60154
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://doi.org/10.1080/00087114.2004.10589672
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Atribución-NoComercial-SinDerivadas 2.5 Argentina
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Atribución-NoComercial-SinDerivadas 2.5 Argentina
dc.format.none.fl_str_mv application/pdf
p. 81-88
application/pdf
dc.publisher.none.fl_str_mv Firenze University Press
publisher.none.fl_str_mv Firenze University Press
dc.source.none.fl_str_mv Caryologia, 2009, vol. 62, no. 2, p. 81-88.
reponame:Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
instname:Universidad Nacional del Nordeste
reponame_str Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
collection Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
instname_str Universidad Nacional del Nordeste
repository.name.fl_str_mv Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) - Universidad Nacional del Nordeste
repository.mail.fl_str_mv ososa@bib.unne.edu.ar;sergio.alegria@unne.edu.ar
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score 13.24418

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