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dc.contributor.author Brugnoli, Elsa Andrea
dc.contributor.author Urbani, Mario Hugo
dc.contributor.author Quarin, Camilo Luis
dc.contributor.author Martínez, Eric Javier
dc.contributor.author Acuña, Carlos Alberto
dc.date.available 2015-10-01T11:57:36Z
dc.date.issued 2013-07
dc.identifier.citation Brugnoli, Elsa Andrea; Urbani, Mario Hugo; Quarin, Camilo Luis; Martínez, Eric Javier; Acuña, Carlos Alberto; Diversity in diplid, tetraploid, and mixed diploid-tetraploid populations of Paspalum simplex; Crop Science Soc Amer; Crop Science; 53; 7-2013; 1509-1516
dc.identifier.issn 0011-183X
dc.identifier.uri http://hdl.handle.net/11336/2240
dc.description.abstract The tetraploid cytotype of Paspalum simplex has a wide geographical distribution and reproduces by apomixis, while the diploid grows in a restricted area in northern Argentina and behaves as cross-pollinated. The objective was to evaluate the genetic diversity among and within natural diploid and tetraploid populations of P. simplex growing in sympatry and allopatry by studying the phenotypic variability and DNA polymorphisms. Twenty three phenotypic traits and ten ISSRs molecular markers were used for evaluating the variability present in 6 populations of P. simplex. Two populations were diploid and four were tetraploid. One of the tetraploid populations was sympatric to a diploid population, while the rest of the populations were allopatric. A rich diversity was observed for specific traits, especially for seasonal biomass yield, presence of a terminal raceme in the inflorescence, and leaf pubescence. The 2x and 4x populations growing in proximity were closely related. Diversity was higher within diploid populations when compared with the evaluated tetraploid populations. Among the tetraploid populations, the one sympatric with a diploid population exhibited the greatest diversity. Gene flow occurs between 2x sexual and 4x apomictic populations of P. simplex. A unidirectional pathway seems to be involved for the creation of new 4x genotypes from highly variable 2x populations.
dc.format application/pdf
dc.language.iso eng
dc.publisher Crop Science Soc Amer
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject APOMIXIS
dc.subject GENETICS
dc.subject PASTURE
dc.subject POLYPLOIDY
dc.subject.classification Agronomía, reproducción y protección de plantas
dc.subject.classification Agricultura, Silvicultura y Pesca
dc.subject.classification CIENCIAS AGRÍCOLAS
dc.title Diversity in diplid, tetraploid, and mixed diploid-tetraploid populations of Paspalum simplex
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2016-03-30 10:35:44.97925-03
dc.journal.volume 53
dc.journal.pagination 1509-1516
dc.journal.pais Estados Unidos
dc.journal.ciudad Baltimore
dc.description.fil Fil: Brugnoli, Elsa Andrea. Ministerio de Ciencia, Tecnología e Innovación Productiva. Agencia Nacional de Promoción Cientifíca y Tecnológica; Argentina; Universidad Nacional del Nordeste. Secretaria de Ciencia y Tecnologia; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina;
dc.description.fil Fil: Urbani, Mario Hugo. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina;
dc.description.fil Fil: Quarin, Camilo Luis. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina;
dc.description.fil Fil: Martínez, Eric Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina; Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina;
dc.description.fil Fil: Acuña, Carlos Alberto. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina;
dc.journal.title Crop Science
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.2135/cropsci2012.08.0497


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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)