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dc.creatorNovo, Patricia Elda
dc.creatorMontenegro Valls, José Francisco
dc.creatorGaldeano, Florencia
dc.creatorHonfi, Ana Isabel
dc.creatorEspinoza, Francisco
dc.creatorQuarin, Camilo Luis
dc.date.accessioned2023-01-31T18:22:38Z
dc.date.available2023-01-31T18:22:38Z
dc.date.issued2016-08-01
dc.identifier.citationNovo, P. E., Valls, J. F., Montenegro Galdeano, F., Honfi, A. I., Espinoza, F., y Quarin, C. L. (2016). Interspecific hybrids between Paspalum plicatulum and P. oteroi : a key tool for forage breeding. Scientia Agricola. Piracicaba, Brasil : USP; 73 (4), pp. 356-362.es_AR
dc.identifier.issn1678-992X
dc.identifier.otherCCPI-CNyE-A-174
dc.identifier.other9976
dc.identifier.urihttps://hdl.handle.net/20.500.12219/4479
dc.descriptionFil: Novo, Patricia Elda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (Nordeste). Instituto de Botánica del Nordeste; Argentina.es_AR
dc.descriptionFil: Novo, Patricia Elda. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina.es_AR
dc.descriptionFil: Montenegro Valls, José Francisco. Ministerio de Agricultura Pecuaria y Abastecimiento de Brasil. Empresa Brasilera de Investigación Agropecuaria; Brasil.es_AR
dc.descriptionFil: Galdeano, Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (Nordeste). Instituto de Botánica del Nordeste; Argentina.es_AR
dc.descriptionFil: Galdeano, Florencia. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina.es_AR
dc.descriptionFil: Honfi, Ana Isabel. Universidad Nacional de Misiones. Facultad de Ciencias Exactas, Químicas y Naturales; Argentina.es_AR
dc.descriptionFil: Espinoza, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (Nordeste). Instituto de Botánica del Nordeste; Argentina.es_AR
dc.descriptionFil: Espinoza, Francisco. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina.es_AR
dc.descriptionFil: Quarin, Camilo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (Nordeste). Instituto de Botánica del Nordeste; Argentina.es_AR
dc.descriptionFil: Quarin, Camilo Luis. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina.es_AR
dc.description.abstractGrama-tio-pedro (Paspalum oteroi Swallen) is a rare stoloniferous grass of the Plicatula group of Paspalum, well adapted to continuous grazing in areas subject to seasonal flooding in the Pantanal region, in central western Brazil. The species is a facultative apomictic (asexual reproduction by seed) tetraploid, sporadically cultivated on Pantanal farms, propagated either by cuttings or seed. Due to its potential for extensive cultivation and forage quality, Grama-tio-pedro appears as a candidate for genetic improvement within the Plicatula group through plant breeding. We used a colchicine-induced sexual autotetraploid genotype of P. plicatulum Michx. to obtain interspecific hybrids using the apomictic species, P. oteroi, as pollen donor. The very similar meiotic chromosome behavior observed in both parents, with main quadrivalent and bivalent associations, suggested that P. oteroi is a natural autotetraploid. The hybrids showed less irregular meiotic behavior with fewer quadrivalents and more bivalents than either parent. Fertility among interspecific hybrids varied from complete sterility in some of them to seed productions in others that were approximately twice as much as for either parent. The great variability of seed set performance may well be a drastic genetic consequence of joining two homologous chromosome sets of P. plicatulum together with two homologous sets of P. oteroi that, in turn, have some homeology between them. Most hybrids reproduce by sexual means, thus, they could be used as female parents in backcrosses and in crosses with other species of the Plicatula group for interspecific gene transferring in breeding programs.en
dc.formatapplication/pdf
dc.format.extent348.2 KB
dc.language.isoengen
dc.publisherUniversidade de São Paulo (Campus "Luiz de Queiroz")es_AR
dc.relationinfo:eu-repo/semantics/altIdentifier/urn/https://www.revistas.usp.br/sa/article/view/117313/114952
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.subjectDNA contenten
dc.subjectApomixisen
dc.subjectFertilityen
dc.subjectMeiosisen
dc.subjectReproductive modeen
dc.titleInterspecific hybrids between Paspalum plicatulum and P. oteroi : a key tool for forage breedingen
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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