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dc.contributor.author
Urbani, Mario Hugo
dc.contributor.author
Quarin, Camilo Luis
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Espinoza, Francisco
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Penteado, M. I. O.
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Rodrigues, I. F.
dc.date.available
2017-12-14T14:25:11Z
dc.date.issued
2002-12
dc.identifier.citation
Urbani, Mario Hugo; Quarin, Camilo Luis; Espinoza, Francisco; Penteado, M. I. O.; Rodrigues, I. F.; Cytogeography and reproduction of the Paspalum simplex polyploid complex; Springer Wien; Plant Systematics and Evolution; 236; 12-2002; 99-105
dc.identifier.issn
0378-2697
dc.identifier.uri
http://hdl.handle.net/11336/30566
dc.description.abstract
Paspalum simplex is a grass distributed throughout the phytogeographic Chaco region in South America from which sexual diploid and apomictic tetraploid races have been reported. We analysed native populations to determine their homogeneity of ploidy level, and the relationship between geographic distribution, ploidy levels, and reproductive systems. The ploidy level was established for 379 plants from 32 wild populations. Tetraploidy and apomixis constitute the most common combination for this species all over the Chaco region. Apomictic hexaploid plants were found associated with 4x populations. Diploids were confined to a small sector of the region. One sexual triploid plant arose from seed harvested in a pure 2x population, and one apomictic 3x plant was found in a mixed 2x-4x population. The results suggest that P. simplex is a core agamic complex characteristic of the Chaco region from which other apomictic polyploid species of the subgenus Anachyris could have evolved.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer Wien
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Paspalum Simplex
dc.subject
Agamix Complex
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Apomixis
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Anachyris
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Phytogeography
dc.subject.classification
Agricultura
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Agricultura, Silvicultura y Pesca
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CIENCIAS AGRÍCOLAS
dc.title
Cytogeography and reproduction of the Paspalum simplex polyploid complex
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-12-04T17:29:40Z
dc.identifier.eissn
1615-6110
dc.journal.volume
236
dc.journal.pagination
99-105
dc.journal.pais
Austria
dc.journal.ciudad
Viena
dc.description.fil
Fil: Urbani, Mario Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina
dc.description.fil
Fil: Quarin, Camilo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina
dc.description.fil
Fil: Espinoza, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina
dc.description.fil
Fil: Penteado, M. I. O.. Ministerio da Agricultura Pecuaria e Abastecimento de Brasil. Empresa Brasileira de Pesquisa Agropecuaria; Brasil
dc.description.fil
Fil: Rodrigues, I. F.. Ministerio da Agricultura Pecuaria e Abastecimento de Brasil. Empresa Brasileira de Pesquisa Agropecuaria; Brasil
dc.journal.title
Plant Systematics and Evolution
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s00606-002-0237-6
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs00606-002-0237-6


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