Chromosome studies on the Bambusoideae (Gramineae)

Meiotic chromosome numbers and observations were made in eleven species belonging to nine different genera of Bambusoideae. The numbers include counts in eight species that have never been investigated cytologically:Arundinaria aff. amabilis (n=24), Chusquea bambusoides (n=ca. 20), Cryptochloa dress...

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Autor principal: Wulff, Arturo Federico
Publicado: 1982
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0007196X_v34_n1_p30_Hunziker
http://hdl.handle.net/20.500.12110/paper_0007196X_v34_n1_p30_Hunziker
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_0007196X_v34_n1_p30_Hunziker
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spelling paper:paper_0007196X_v34_n1_p30_Hunziker2023-06-08T14:31:39Z Chromosome studies on the Bambusoideae (Gramineae) Wulff, Arturo Federico Meiotic chromosome numbers and observations were made in eleven species belonging to nine different genera of Bambusoideae. The numbers include counts in eight species that have never been investigated cytologically:Arundinaria aff. amabilis (n=24), Chusquea bambusoides (n=ca. 20), Cryptochloa dressleri (n=11), Olyra ciliatifolia (n=11), Sucrea monophylla (n=11), Raddia brasiliensis (n=11), Strephium distichophyllum (n=11), and Pariana aurita (n=22). The genera Strephium and Sucrea have not been studied previously with respect to their chromosomes. The significance of these results are discussed in relation to the over 140 published counts in the subfamily, which indicates a preponderance of polyploidy in the woody members, or bamboos, but not in their herbaceous allies. Aneuploidy is rare in the former but frequent in the latter. It is postulated that the herbaceous bambusoids, which flower every year and produce recombinants regularly and in short-time cycles, could have tolerated successive reductions of the linkage groups and their genetic flexibility. These changes would not have been favored in the bamboos, which have more genetic constancy due to the long lapse (often 20-120 years) between flowering generations. © 1982 The New York Botanical Garden. Fil:Wulff, A.F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1982 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0007196X_v34_n1_p30_Hunziker http://hdl.handle.net/20.500.12110/paper_0007196X_v34_n1_p30_Hunziker
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description Meiotic chromosome numbers and observations were made in eleven species belonging to nine different genera of Bambusoideae. The numbers include counts in eight species that have never been investigated cytologically:Arundinaria aff. amabilis (n=24), Chusquea bambusoides (n=ca. 20), Cryptochloa dressleri (n=11), Olyra ciliatifolia (n=11), Sucrea monophylla (n=11), Raddia brasiliensis (n=11), Strephium distichophyllum (n=11), and Pariana aurita (n=22). The genera Strephium and Sucrea have not been studied previously with respect to their chromosomes. The significance of these results are discussed in relation to the over 140 published counts in the subfamily, which indicates a preponderance of polyploidy in the woody members, or bamboos, but not in their herbaceous allies. Aneuploidy is rare in the former but frequent in the latter. It is postulated that the herbaceous bambusoids, which flower every year and produce recombinants regularly and in short-time cycles, could have tolerated successive reductions of the linkage groups and their genetic flexibility. These changes would not have been favored in the bamboos, which have more genetic constancy due to the long lapse (often 20-120 years) between flowering generations. © 1982 The New York Botanical Garden.
author Wulff, Arturo Federico
spellingShingle Wulff, Arturo Federico
Chromosome studies on the Bambusoideae (Gramineae)
author_facet Wulff, Arturo Federico
author_sort Wulff, Arturo Federico
title Chromosome studies on the Bambusoideae (Gramineae)
title_short Chromosome studies on the Bambusoideae (Gramineae)
title_full Chromosome studies on the Bambusoideae (Gramineae)
title_fullStr Chromosome studies on the Bambusoideae (Gramineae)
title_full_unstemmed Chromosome studies on the Bambusoideae (Gramineae)
title_sort chromosome studies on the bambusoideae (gramineae)
publishDate 1982
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0007196X_v34_n1_p30_Hunziker
http://hdl.handle.net/20.500.12110/paper_0007196X_v34_n1_p30_Hunziker
work_keys_str_mv AT wulffarturofederico chromosomestudiesonthebambusoideaegramineae
_version_ 1768544300434456576

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