Gene flow between cultivated and wild sunflower Helianthus annuus in Argentina

dc.creatorUreta, Maria Soledad
dc.creatorCarrera, A. D.
dc.creatorCantamutto, M. A.
dc.creatorPoverene, Maria Monica
dc.date2008-02
dc.identifierhttp://hdl.handle.net/11336/19977
dc.identifierUreta, Maria Soledad; Carrera, A. D.; Cantamutto, M. A.; Poverene, Maria Monica; Gene flow between cultivated and wild sunflower Helianthus annuus in Argentina; Elsevier Science; Agriculture, Ecosystems and Environment; 123; 4; 2-2008; 343-349
dc.identifier0167-8809
dc.identifierCONICET Digital
dc.identifierCONICET
dc.descriptionNaturalized populations of wild sunflower, Helianthus annnus, occur in six provinces of central Argentina, usually near sunflower crops. Plants of intermediate morphology indicate that gene flow might take place in both senses. In order to quantify gene flow between cultivated and wild sunflower, an experimental stand of sunflower was sown surrounded by plots of wild plants at increasing distances. Hybridization rate was estimated using a crop specific isozyme marker, and a mean of 7% progenies were crop-wild hybrids. The nearest wild plants (3 m from the cultivar) showed the highest percentage (18%) of gene flow, which was found to decrease with distance, up to 500 m. Pollen flow from wild plants to crop, evaluated through morphological characters in the progenies of cultivated plants from a stand invaded by wild sunflowers, produced 3.75% intermediate plants.
dc.descriptionFil: Ureta, Maria Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiarida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiarida; Argentina
dc.descriptionFil: Carrera, A. D.. Universidad Nacional del Sur. Departamento de Agronomía; Argentina
dc.descriptionFil: Cantamutto, M. A.. Universidad Nacional del Sur. Departamento de Agronomía; Argentina
dc.descriptionFil: Poverene, Maria Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiarida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiarida; Argentina
dc.formatapplication/pdf
dc.formatapplication/pdf
dc.languageeng
dc.publisherElsevier Science
dc.relationinfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0167880907001971
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.agee.2007.07.006
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subjectGene Flow
dc.subjectWild Helianthus
dc.subjectSunflower
dc.subjectVolunteers
dc.subjectHybridization
dc.subjecthttps://purl.org/becyt/ford/4.1
dc.subjecthttps://purl.org/becyt/ford/4
dc.titleGene flow between cultivated and wild sunflower Helianthus annuus in Argentina
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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