A new polyploid of Blechnum occidentale (Blechnaceae-Polypodiopsida) for the northwest of Argentina

A detailed cytological study of the spore mother cells of specimens of B. occidentale collected in locations from the northwest of the Argentina was carried out here. The results of this contribution allowed to report a new polyploid, in this case a hexaploid, whose most probably basic number was co...

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Detalles Bibliográficos
Autor principal: González, Graciela Esther
Publicado: 2016
Materias:
Chromosome number
Hexaploid fern
Sporangial characters
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02144565_v40_n_p53_Gonzalez
http://hdl.handle.net/20.500.12110/paper_02144565_v40_n_p53_Gonzalez
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_02144565_v40_n_p53_Gonzalez
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spelling paper:paper_02144565_v40_n_p53_Gonzalez2023-06-08T15:20:54Z A new polyploid of Blechnum occidentale (Blechnaceae-Polypodiopsida) for the northwest of Argentina González, Graciela Esther Chromosome number Hexaploid fern Sporangial characters A detailed cytological study of the spore mother cells of specimens of B. occidentale collected in locations from the northwest of the Argentina was carried out here. The results of this contribution allowed to report a new polyploid, in this case a hexaploid, whose most probably basic number was considered x = 31, and which origin is analyzed and discussed. The study suggests an allopolyploid origin of this new cytotype which would be a product of interspecific hybridization and later chromosomal duplication. In the course of the study a notable stability was observed in the sporangial characters that are considered to be diagnostic at the specific level, and independent from the ploidy. Fil:González, G.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02144565_v40_n_p53_Gonzalez http://hdl.handle.net/20.500.12110/paper_02144565_v40_n_p53_Gonzalez
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Chromosome number
Hexaploid fern
Sporangial characters
spellingShingle Chromosome number
Hexaploid fern
Sporangial characters
González, Graciela Esther
A new polyploid of Blechnum occidentale (Blechnaceae-Polypodiopsida) for the northwest of Argentina
topic_facet Chromosome number
Hexaploid fern
Sporangial characters
description A detailed cytological study of the spore mother cells of specimens of B. occidentale collected in locations from the northwest of the Argentina was carried out here. The results of this contribution allowed to report a new polyploid, in this case a hexaploid, whose most probably basic number was considered x = 31, and which origin is analyzed and discussed. The study suggests an allopolyploid origin of this new cytotype which would be a product of interspecific hybridization and later chromosomal duplication. In the course of the study a notable stability was observed in the sporangial characters that are considered to be diagnostic at the specific level, and independent from the ploidy.
author González, Graciela Esther
author_facet González, Graciela Esther
author_sort González, Graciela Esther
title A new polyploid of Blechnum occidentale (Blechnaceae-Polypodiopsida) for the northwest of Argentina
title_short A new polyploid of Blechnum occidentale (Blechnaceae-Polypodiopsida) for the northwest of Argentina
title_full A new polyploid of Blechnum occidentale (Blechnaceae-Polypodiopsida) for the northwest of Argentina
title_fullStr A new polyploid of Blechnum occidentale (Blechnaceae-Polypodiopsida) for the northwest of Argentina
title_full_unstemmed A new polyploid of Blechnum occidentale (Blechnaceae-Polypodiopsida) for the northwest of Argentina
title_sort new polyploid of blechnum occidentale (blechnaceae-polypodiopsida) for the northwest of argentina
publishDate 2016
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02144565_v40_n_p53_Gonzalez
http://hdl.handle.net/20.500.12110/paper_02144565_v40_n_p53_Gonzalez
work_keys_str_mv AT gonzalezgracielaesther anewpolyploidofblechnumoccidentaleblechnaceaepolypodiopsidaforthenorthwestofargentina
AT gonzalezgracielaesther newpolyploidofblechnumoccidentaleblechnaceaepolypodiopsidaforthenorthwestofargentina
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