Meiotic behaviour and B chromosomes in Argentine populations of chrysolaena verbascifolia (vernonieae: asteraceae)
- Autores
- Via Do Pico, Gisela Mariel; Dematteis, Massimiliano
- Año de publicación
- 2017
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Fil: Via Do Pico, Gisela Mariel. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina.
Fil: Via Do Pico, Gisela Mariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina.
Fil: Dematteis, Massimiliano. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina.
Fil: Dematteis, Massimiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina.
Four populations of Chrysolaena verbascifolia (Vernonieae: Asteraceae) from localities in Argentina were cytologically analysed for meiotic behaviour and pollen viability. This is the first meiotic analysis in the species. All were diploids with 2n = 2x = 20 and all showed quite regular meiotic behaviour. We also report the occurrence of accessory chromosomes in all the populations of the species. The majority of the populations displayed regular bivalent formation during late prophase stages and metaphase I, and chromosome segregation at anaphase. However, some chromosomal irregularities were recorded, mainly during meiosis I, including univalents, out-of-plate chromosomes and precocious segregation in metaphase, and laggards and chromatin bridges in anaphase. The B chromosomes and abnormal behaviours of the chromosomes during meiosis observed did not affect pollen development in these taxa, as viability was always high. - Fuente
- Webbia, 2017, vol. 72, no. 1, p.139-147.
- Materia
-
Bivalents
Meiotic abnormalities
Pollen viability
Univalents - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-nd/2.5/ar/
- Repositorio
- Institución
- Universidad Nacional del Nordeste
- OAI Identificador
- oai:repositorio.unne.edu.ar:123456789/28209
Ver los metadatos del registro completo
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Meiotic behaviour and B chromosomes in Argentine populations of chrysolaena verbascifolia (vernonieae: asteraceae)Via Do Pico, Gisela MarielDematteis, MassimilianoBivalentsMeiotic abnormalitiesPollen viabilityUnivalentsFil: Via Do Pico, Gisela Mariel. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina.Fil: Via Do Pico, Gisela Mariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina.Fil: Dematteis, Massimiliano. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina.Fil: Dematteis, Massimiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina.Four populations of Chrysolaena verbascifolia (Vernonieae: Asteraceae) from localities in Argentina were cytologically analysed for meiotic behaviour and pollen viability. This is the first meiotic analysis in the species. All were diploids with 2n = 2x = 20 and all showed quite regular meiotic behaviour. We also report the occurrence of accessory chromosomes in all the populations of the species. The majority of the populations displayed regular bivalent formation during late prophase stages and metaphase I, and chromosome segregation at anaphase. However, some chromosomal irregularities were recorded, mainly during meiosis I, including univalents, out-of-plate chromosomes and precocious segregation in metaphase, and laggards and chromatin bridges in anaphase. The B chromosomes and abnormal behaviours of the chromosomes during meiosis observed did not affect pollen development in these taxa, as viability was always high.Taylor and Francis Ltd2017-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfVia Do Pico, Gisela Mariel y Dematteis, Massimiliano, 2017. Meiotic behaviour and B chromosomes in Argentine populations of chrysolaena verbascifolia (vernonieae:asteraceae). Webbia. London: Taylor and Francis Ltd., vol. 72, no. 1, p.139-147. ISSN 2169-4060.0083-7792http://repositorio.unne.edu.ar/handle/123456789/28209Webbia, 2017, vol. 72, no. 1, p.139-147.reponame:Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)instname:Universidad Nacional del Nordesteenghttps://www.tandfonline.com/doi/full/10.1080/00837792.2016.1260881info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/2.5/ar/Atribución-NoComercial-SinDerivadas 2.5 Argentina2025-09-29T14:29:41Zoai:repositorio.unne.edu.ar:123456789/28209instacron: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:48712025-09-29 14:29:41.795Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) - Universidad Nacional del Nordestefalse |
dc.title.none.fl_str_mv |
Meiotic behaviour and B chromosomes in Argentine populations of chrysolaena verbascifolia (vernonieae: asteraceae) |
title |
Meiotic behaviour and B chromosomes in Argentine populations of chrysolaena verbascifolia (vernonieae: asteraceae) |
spellingShingle |
Meiotic behaviour and B chromosomes in Argentine populations of chrysolaena verbascifolia (vernonieae: asteraceae) Via Do Pico, Gisela Mariel Bivalents Meiotic abnormalities Pollen viability Univalents |
title_short |
Meiotic behaviour and B chromosomes in Argentine populations of chrysolaena verbascifolia (vernonieae: asteraceae) |
title_full |
Meiotic behaviour and B chromosomes in Argentine populations of chrysolaena verbascifolia (vernonieae: asteraceae) |
title_fullStr |
Meiotic behaviour and B chromosomes in Argentine populations of chrysolaena verbascifolia (vernonieae: asteraceae) |
title_full_unstemmed |
Meiotic behaviour and B chromosomes in Argentine populations of chrysolaena verbascifolia (vernonieae: asteraceae) |
title_sort |
Meiotic behaviour and B chromosomes in Argentine populations of chrysolaena verbascifolia (vernonieae: asteraceae) |
dc.creator.none.fl_str_mv |
Via Do Pico, Gisela Mariel Dematteis, Massimiliano |
author |
Via Do Pico, Gisela Mariel |
author_facet |
Via Do Pico, Gisela Mariel Dematteis, Massimiliano |
author_role |
author |
author2 |
Dematteis, Massimiliano |
author2_role |
author |
dc.subject.none.fl_str_mv |
Bivalents Meiotic abnormalities Pollen viability Univalents |
topic |
Bivalents Meiotic abnormalities Pollen viability Univalents |
dc.description.none.fl_txt_mv |
Fil: Via Do Pico, Gisela Mariel. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina. Fil: Via Do Pico, Gisela Mariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina. Fil: Dematteis, Massimiliano. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina. Fil: Dematteis, Massimiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina. Four populations of Chrysolaena verbascifolia (Vernonieae: Asteraceae) from localities in Argentina were cytologically analysed for meiotic behaviour and pollen viability. This is the first meiotic analysis in the species. All were diploids with 2n = 2x = 20 and all showed quite regular meiotic behaviour. We also report the occurrence of accessory chromosomes in all the populations of the species. The majority of the populations displayed regular bivalent formation during late prophase stages and metaphase I, and chromosome segregation at anaphase. However, some chromosomal irregularities were recorded, mainly during meiosis I, including univalents, out-of-plate chromosomes and precocious segregation in metaphase, and laggards and chromatin bridges in anaphase. The B chromosomes and abnormal behaviours of the chromosomes during meiosis observed did not affect pollen development in these taxa, as viability was always high. |
description |
Fil: Via Do Pico, Gisela Mariel. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01 |
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 |
Via Do Pico, Gisela Mariel y Dematteis, Massimiliano, 2017. Meiotic behaviour and B chromosomes in Argentine populations of chrysolaena verbascifolia (vernonieae:asteraceae). Webbia. London: Taylor and Francis Ltd., vol. 72, no. 1, p.139-147. ISSN 2169-4060. 0083-7792 http://repositorio.unne.edu.ar/handle/123456789/28209 |
identifier_str_mv |
Via Do Pico, Gisela Mariel y Dematteis, Massimiliano, 2017. Meiotic behaviour and B chromosomes in Argentine populations of chrysolaena verbascifolia (vernonieae:asteraceae). Webbia. London: Taylor and Francis Ltd., vol. 72, no. 1, p.139-147. ISSN 2169-4060. 0083-7792 |
url |
http://repositorio.unne.edu.ar/handle/123456789/28209 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.tandfonline.com/doi/full/10.1080/00837792.2016.1260881 |
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 application/pdf |
dc.publisher.none.fl_str_mv |
Taylor and Francis Ltd |
publisher.none.fl_str_mv |
Taylor and Francis Ltd |
dc.source.none.fl_str_mv |
Webbia, 2017, vol. 72, no. 1, p.139-147. 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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1844621671296663552 |
score |
12.559606 |