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dc.contributor.authorFachinetto, Juliana Mariapt_BR
dc.contributor.authorDall'Agnol, Miguelpt_BR
dc.contributor.authorSchifino-Wittmann, Maria Teresapt_BR
dc.contributor.authorSimioni, Carinept_BR
dc.contributor.authorÁvila, Mariana Rockenbach dept_BR
dc.date.accessioned2020-03-25T04:16:58Zpt_BR
dc.date.issued2018pt_BR
dc.identifier.issn1518-7853pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/206924pt_BR
dc.description.abstractPaspalum notatum is a polymorphic species with two accepted varieties, according to the ploidy level. The ploidy level is closely related to the reproductive mode of this species. Usually, diploid cytotypes have sexual reproduction, and tetraploid cytotypes have an apomictic reproduction. Apomixis limits genetic recombination, hindering the development of new cultivars. The identification of sexual plants represents many possibilities in breeding programs. This study aimed to analyze the chromosome number in P. notatum accessions under agronomic evaluation. Ploidy level was determined in 25 accessions. Two ploidy levels were detected, resulting in 21 tetraploid and four diploid accessions. The four diploid accessions originate from Argentina and Uruguay, in a region close to the origin of Pensacola, which is a diploid sexual cultivar of P. notatum. These new diploid accessions may be useful in the development of breeding programs of Paspalum species.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofCrop Breeding and Applied Biotechnology. Viçosa, MG. Vol. 18, n.4 (out./dez. 2018), p. 432-436pt_BR
dc.rightsOpen Accessen
dc.subjectCytogeneticsen
dc.subjectPlanta forrageirapt_BR
dc.subjectGenetic breedingen
dc.subjectPaspalum notatumpt_BR
dc.subjectploidy levelen
dc.subjectMelhoramento genético vegetalpt_BR
dc.subjectCitogenéticapt_BR
dc.subjectVariedadept_BR
dc.titleNew wild diploids in Paspalum notatum Flügge (Poaceae) : potential accessions for use in breedingpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001114237pt_BR
dc.type.originNacionalpt_BR


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