Chromosome studies in Andean taxa of Alstroemeria (Alstroemeriaceae)

Autores
Sanso, A.M.
Año de publicación
2002
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Meiotic or mitotic chromosomes of seven Alstroemeria taxa, native in Argentina and Chile and with Andean distribution were studied: A. andina ssp. venustula, A. hookeri ssp. cummingiana, A. hookeri ssp. recumbens, A. pallida, A. patagonica, A. pseudospathulata and A. pygmaea. All were diploid with 2n = 16. Karyotypes of A. andina ssp. venustula and A. pygmaea were analysed, revealing similarity to previously analysed species. Thus, to all existing arguments for not retaining Schickendantzia as a separate genus, we can add another one which merges A. pygmaea with other Alstroemeria species, and does not support its taxonomic uniqueness. In general, the meiotic behaviour was normal, with regular formation of eight bivalents except in A. hookeri ssp. cummingiana, in one plant of which meiotic irregularities at various stages were observed. At the tetrad stage a large percentage of the cells presented micronuclei. The presence of 0-2 supernumerary chromosomes in A. hookeri ssp. recumbens is recorded. The karyotype asymmetry presented by most Alstroemeria species is discussed. © 2002 The Linnean Society of London.
Fil:Sanso, A.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fuente
Bot. J. Linn. Soc. 2002;138(4):451-459
Materia
A. hookeri
A. pallida
A. patagonica
A. pseudospathulata
A. pygmaea
Alstroemeria andina
Karyotype
Meiosis
Schickendantzia
chromosome
Alstroemeria
Alstroemeria andina
Alstroemeriaceae
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_00244074_v138_n4_p451_Sanso

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oai_identifier_str paperaa:paper_00244074_v138_n4_p451_Sanso
network_acronym_str BDUBAFCEN
repository_id_str 1896
network_name_str Biblioteca Digital (UBA-FCEN)
spelling Chromosome studies in Andean taxa of Alstroemeria (Alstroemeriaceae)Sanso, A.M.A. hookeriA. pallidaA. patagonicaA. pseudospathulataA. pygmaeaAlstroemeria andinaKaryotypeMeiosisSchickendantziachromosomeAlstroemeriaAlstroemeria andinaAlstroemeriaceaeMeiotic or mitotic chromosomes of seven Alstroemeria taxa, native in Argentina and Chile and with Andean distribution were studied: A. andina ssp. venustula, A. hookeri ssp. cummingiana, A. hookeri ssp. recumbens, A. pallida, A. patagonica, A. pseudospathulata and A. pygmaea. All were diploid with 2n = 16. Karyotypes of A. andina ssp. venustula and A. pygmaea were analysed, revealing similarity to previously analysed species. Thus, to all existing arguments for not retaining Schickendantzia as a separate genus, we can add another one which merges A. pygmaea with other Alstroemeria species, and does not support its taxonomic uniqueness. In general, the meiotic behaviour was normal, with regular formation of eight bivalents except in A. hookeri ssp. cummingiana, in one plant of which meiotic irregularities at various stages were observed. At the tetrad stage a large percentage of the cells presented micronuclei. The presence of 0-2 supernumerary chromosomes in A. hookeri ssp. recumbens is recorded. The karyotype asymmetry presented by most Alstroemeria species is discussed. © 2002 The Linnean Society of London.Fil:Sanso, A.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.2002info: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_00244074_v138_n4_p451_SansoBot. J. Linn. Soc. 2002;138(4):451-459reponame: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/ar2025-09-29T13:43:06Zpaperaa:paper_00244074_v138_n4_p451_SansoInstitucionalhttps://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 13:43:07.454Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesfalse
dc.title.none.fl_str_mv Chromosome studies in Andean taxa of Alstroemeria (Alstroemeriaceae)
title Chromosome studies in Andean taxa of Alstroemeria (Alstroemeriaceae)
spellingShingle Chromosome studies in Andean taxa of Alstroemeria (Alstroemeriaceae)
Sanso, A.M.
A. hookeri
A. pallida
A. patagonica
A. pseudospathulata
A. pygmaea
Alstroemeria andina
Karyotype
Meiosis
Schickendantzia
chromosome
Alstroemeria
Alstroemeria andina
Alstroemeriaceae
title_short Chromosome studies in Andean taxa of Alstroemeria (Alstroemeriaceae)
title_full Chromosome studies in Andean taxa of Alstroemeria (Alstroemeriaceae)
title_fullStr Chromosome studies in Andean taxa of Alstroemeria (Alstroemeriaceae)
title_full_unstemmed Chromosome studies in Andean taxa of Alstroemeria (Alstroemeriaceae)
title_sort Chromosome studies in Andean taxa of Alstroemeria (Alstroemeriaceae)
dc.creator.none.fl_str_mv Sanso, A.M.
author Sanso, A.M.
author_facet Sanso, A.M.
author_role author
dc.subject.none.fl_str_mv A. hookeri
A. pallida
A. patagonica
A. pseudospathulata
A. pygmaea
Alstroemeria andina
Karyotype
Meiosis
Schickendantzia
chromosome
Alstroemeria
Alstroemeria andina
Alstroemeriaceae
topic A. hookeri
A. pallida
A. patagonica
A. pseudospathulata
A. pygmaea
Alstroemeria andina
Karyotype
Meiosis
Schickendantzia
chromosome
Alstroemeria
Alstroemeria andina
Alstroemeriaceae
dc.description.none.fl_txt_mv Meiotic or mitotic chromosomes of seven Alstroemeria taxa, native in Argentina and Chile and with Andean distribution were studied: A. andina ssp. venustula, A. hookeri ssp. cummingiana, A. hookeri ssp. recumbens, A. pallida, A. patagonica, A. pseudospathulata and A. pygmaea. All were diploid with 2n = 16. Karyotypes of A. andina ssp. venustula and A. pygmaea were analysed, revealing similarity to previously analysed species. Thus, to all existing arguments for not retaining Schickendantzia as a separate genus, we can add another one which merges A. pygmaea with other Alstroemeria species, and does not support its taxonomic uniqueness. In general, the meiotic behaviour was normal, with regular formation of eight bivalents except in A. hookeri ssp. cummingiana, in one plant of which meiotic irregularities at various stages were observed. At the tetrad stage a large percentage of the cells presented micronuclei. The presence of 0-2 supernumerary chromosomes in A. hookeri ssp. recumbens is recorded. The karyotype asymmetry presented by most Alstroemeria species is discussed. © 2002 The Linnean Society of London.
Fil:Sanso, A.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
description Meiotic or mitotic chromosomes of seven Alstroemeria taxa, native in Argentina and Chile and with Andean distribution were studied: A. andina ssp. venustula, A. hookeri ssp. cummingiana, A. hookeri ssp. recumbens, A. pallida, A. patagonica, A. pseudospathulata and A. pygmaea. All were diploid with 2n = 16. Karyotypes of A. andina ssp. venustula and A. pygmaea were analysed, revealing similarity to previously analysed species. Thus, to all existing arguments for not retaining Schickendantzia as a separate genus, we can add another one which merges A. pygmaea with other Alstroemeria species, and does not support its taxonomic uniqueness. In general, the meiotic behaviour was normal, with regular formation of eight bivalents except in A. hookeri ssp. cummingiana, in one plant of which meiotic irregularities at various stages were observed. At the tetrad stage a large percentage of the cells presented micronuclei. The presence of 0-2 supernumerary chromosomes in A. hookeri ssp. recumbens is recorded. The karyotype asymmetry presented by most Alstroemeria species is discussed. © 2002 The Linnean Society of London.
publishDate 2002
dc.date.none.fl_str_mv 2002
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_00244074_v138_n4_p451_Sanso
url http://hdl.handle.net/20.500.12110/paper_00244074_v138_n4_p451_Sanso
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 Bot. J. Linn. Soc. 2002;138(4):451-459
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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