Karyotype, DNA content and meiotic behaviour in five South American species of Vicia (Fabaceae)

Autores
Naranjo, C.A.; Ferrari, M.R.; Palermo, A.M.; Poggio, L.
Año de publicación
1998
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This paper presents the karyotype, DNA content and meiotic behaviour of five species of Vicia from Argentina (V. macrograminea Burk., V. graminea SM., V. epetiolaris Burk., V. pampicola Burk. and V. nana Vog.). All the species have the same chromosome number and karyotype formula (2n = 14; 6 m + 4 st + 4 t). Each species, however, displays a characteristic number and position of the nucleolar organizer region (NOR) and different sizes of the respective satellites, confirmed by Ag-NOR banding. Moreover, significant differences were found in the total chromosome volume (TCV) and DNA content of the species. Positive correlations between DNA content and TCV, and between DNA content and type of life cycle were also found. TCV and DNA content are lower in V. nana (annual) and higher in V. macrograminea (biennial-perennial). The material displayed marked karyotypic orthoselection, with similar karyotypes in all studied species, even when the overall chromosome size varied. Evolutionary changes in DNA amount are proportional to the relative length of each chromosome arm, maintaining karyotypic uniformity. Significant differences were found between the meiotic behaviour of V. graminea and that of the other species. V. graminea has a lower frequency of ring bivalents and chiasmata per cell, and also has a lower interstitial chiasma frequency. In general, the results are congruent with the morphological data reported for these species.
Fil:Naranjo, C.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Ferrari, M.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Palermo, A.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Poggio, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fuente
Ann. Bot. 1998;82(6):757-764
Materia
Karyotype
Meiotic behaviour
NOR banding
Nuclear DNA content
Orthoselection
Vicia species
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/2.5/ar
Repositorio
Biblioteca Digital (UBA-FCEN)
Institución
Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
OAI Identificador
paperaa:paper_03057364_v82_n6_p757_Naranjo
Acceder
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oai_identifier_str paperaa:paper_03057364_v82_n6_p757_Naranjo
network_acronym_str BDUBAFCEN
repository_id_str 1896
network_name_str Biblioteca Digital (UBA-FCEN)
spelling Karyotype, DNA content and meiotic behaviour in five South American species of Vicia (Fabaceae)Naranjo, C.A.Ferrari, M.R.Palermo, A.M.Poggio, L.KaryotypeMeiotic behaviourNOR bandingNuclear DNA contentOrthoselectionVicia speciesThis paper presents the karyotype, DNA content and meiotic behaviour of five species of Vicia from Argentina (V. macrograminea Burk., V. graminea SM., V. epetiolaris Burk., V. pampicola Burk. and V. nana Vog.). All the species have the same chromosome number and karyotype formula (2n = 14; 6 m + 4 st + 4 t). Each species, however, displays a characteristic number and position of the nucleolar organizer region (NOR) and different sizes of the respective satellites, confirmed by Ag-NOR banding. Moreover, significant differences were found in the total chromosome volume (TCV) and DNA content of the species. Positive correlations between DNA content and TCV, and between DNA content and type of life cycle were also found. TCV and DNA content are lower in V. nana (annual) and higher in V. macrograminea (biennial-perennial). The material displayed marked karyotypic orthoselection, with similar karyotypes in all studied species, even when the overall chromosome size varied. Evolutionary changes in DNA amount are proportional to the relative length of each chromosome arm, maintaining karyotypic uniformity. Significant differences were found between the meiotic behaviour of V. graminea and that of the other species. V. graminea has a lower frequency of ring bivalents and chiasmata per cell, and also has a lower interstitial chiasma frequency. In general, the results are congruent with the morphological data reported for these species.Fil:Naranjo, C.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.Fil:Ferrari, M.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.Fil:Palermo, A.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.Fil:Poggio, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.1998info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12110/paper_03057364_v82_n6_p757_NaranjoAnn. Bot. 1998;82(6):757-764reponame:Biblioteca Digital (UBA-FCEN)instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesinstacron:UBA-FCENenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/2.5/ar2025-09-29T13:42:55Zpaperaa:paper_03057364_v82_n6_p757_NaranjoInstitucionalhttps://digital.bl.fcen.uba.ar/Universidad públicaNo correspondehttps://digital.bl.fcen.uba.ar/cgi-bin/oaiserver.cgiana@bl.fcen.uba.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:18962025-09-29 13:42:56.309Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesfalse
dc.title.none.fl_str_mv Karyotype, DNA content and meiotic behaviour in five South American species of Vicia (Fabaceae)
title Karyotype, DNA content and meiotic behaviour in five South American species of Vicia (Fabaceae)
spellingShingle Karyotype, DNA content and meiotic behaviour in five South American species of Vicia (Fabaceae)
Naranjo, C.A.
Karyotype
Meiotic behaviour
NOR banding
Nuclear DNA content
Orthoselection
Vicia species
title_short Karyotype, DNA content and meiotic behaviour in five South American species of Vicia (Fabaceae)
title_full Karyotype, DNA content and meiotic behaviour in five South American species of Vicia (Fabaceae)
title_fullStr Karyotype, DNA content and meiotic behaviour in five South American species of Vicia (Fabaceae)
title_full_unstemmed Karyotype, DNA content and meiotic behaviour in five South American species of Vicia (Fabaceae)
title_sort Karyotype, DNA content and meiotic behaviour in five South American species of Vicia (Fabaceae)
dc.creator.none.fl_str_mv Naranjo, C.A.
Ferrari, M.R.
Palermo, A.M.
Poggio, L.
author Naranjo, C.A.
author_facet Naranjo, C.A.
Ferrari, M.R.
Palermo, A.M.
Poggio, L.
author_role author
author2 Ferrari, M.R.
Palermo, A.M.
Poggio, L.
author2_role author
author
author
dc.subject.none.fl_str_mv Karyotype
Meiotic behaviour
NOR banding
Nuclear DNA content
Orthoselection
Vicia species
topic Karyotype
Meiotic behaviour
NOR banding
Nuclear DNA content
Orthoselection
Vicia species
dc.description.none.fl_txt_mv This paper presents the karyotype, DNA content and meiotic behaviour of five species of Vicia from Argentina (V. macrograminea Burk., V. graminea SM., V. epetiolaris Burk., V. pampicola Burk. and V. nana Vog.). All the species have the same chromosome number and karyotype formula (2n = 14; 6 m + 4 st + 4 t). Each species, however, displays a characteristic number and position of the nucleolar organizer region (NOR) and different sizes of the respective satellites, confirmed by Ag-NOR banding. Moreover, significant differences were found in the total chromosome volume (TCV) and DNA content of the species. Positive correlations between DNA content and TCV, and between DNA content and type of life cycle were also found. TCV and DNA content are lower in V. nana (annual) and higher in V. macrograminea (biennial-perennial). The material displayed marked karyotypic orthoselection, with similar karyotypes in all studied species, even when the overall chromosome size varied. Evolutionary changes in DNA amount are proportional to the relative length of each chromosome arm, maintaining karyotypic uniformity. Significant differences were found between the meiotic behaviour of V. graminea and that of the other species. V. graminea has a lower frequency of ring bivalents and chiasmata per cell, and also has a lower interstitial chiasma frequency. In general, the results are congruent with the morphological data reported for these species.
Fil:Naranjo, C.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Ferrari, M.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Palermo, A.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Poggio, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
description This paper presents the karyotype, DNA content and meiotic behaviour of five species of Vicia from Argentina (V. macrograminea Burk., V. graminea SM., V. epetiolaris Burk., V. pampicola Burk. and V. nana Vog.). All the species have the same chromosome number and karyotype formula (2n = 14; 6 m + 4 st + 4 t). Each species, however, displays a characteristic number and position of the nucleolar organizer region (NOR) and different sizes of the respective satellites, confirmed by Ag-NOR banding. Moreover, significant differences were found in the total chromosome volume (TCV) and DNA content of the species. Positive correlations between DNA content and TCV, and between DNA content and type of life cycle were also found. TCV and DNA content are lower in V. nana (annual) and higher in V. macrograminea (biennial-perennial). The material displayed marked karyotypic orthoselection, with similar karyotypes in all studied species, even when the overall chromosome size varied. Evolutionary changes in DNA amount are proportional to the relative length of each chromosome arm, maintaining karyotypic uniformity. Significant differences were found between the meiotic behaviour of V. graminea and that of the other species. V. graminea has a lower frequency of ring bivalents and chiasmata per cell, and also has a lower interstitial chiasma frequency. In general, the results are congruent with the morphological data reported for these species.
publishDate 1998
dc.date.none.fl_str_mv 1998
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 http://hdl.handle.net/20.500.12110/paper_03057364_v82_n6_p757_Naranjo
url http://hdl.handle.net/20.500.12110/paper_03057364_v82_n6_p757_Naranjo
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/2.5/ar
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/2.5/ar
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Ann. Bot. 1998;82(6):757-764
reponame:Biblioteca Digital (UBA-FCEN)
instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron:UBA-FCEN
reponame_str Biblioteca Digital (UBA-FCEN)
collection Biblioteca Digital (UBA-FCEN)
instname_str Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron_str UBA-FCEN
institution UBA-FCEN
repository.name.fl_str_mv Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
repository.mail.fl_str_mv ana@bl.fcen.uba.ar
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