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
Autores principales:	González, G.E., Prada, C., Rolleri, C.H.
Formato:	JOUR
Materias:	Chromosome number Hexaploid fern Sporangial characters
Acceso en línea:	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

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spelling	todo:paper_02144565_v40_n_p53_Gonzalez2023-10-03T15:10:14Z A new polyploid of Blechnum occidentale (Blechnaceae-Polypodiopsida) for the northwest of Argentina González, G.E. Prada, C. Rolleri, C.H. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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, G.E. Prada, C. Rolleri, C.H. 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.
format	JOUR
author	González, G.E. Prada, C. Rolleri, C.H.
author_facet	González, G.E. Prada, C. Rolleri, C.H.
author_sort	González, G.E.
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
url	http://hdl.handle.net/20.500.12110/paper_02144565_v40_n_p53_Gonzalez
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A new polyploid of Blechnum occidentale (Blechnaceae-Polypodiopsida) for the northwest of Argentina

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