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dc.contributor.author Zanetti, Julieta Miranda
dc.contributor.author Greizerstein, Eduardo
dc.contributor.author Camadro, Elsa Lucila
dc.contributor.author Poverene, Maria Monica
dc.contributor.author Echeverría, Mercedes
dc.contributor.author Poggio, Lidia
dc.contributor.author Carrera, Alicia
dc.date.available 2017-02-08T20:45:27Z
dc.date.issued 2013-11
dc.identifier.citation Zanetti, Julieta Miranda ; Greizerstein, Eduardo; Camadro, Elsa Lucila; Poverene, Maria Monica; Echeverría, Mercedes; et al.; Genomic relationships between hexaploid Helianthus resinosus and diploid Helianthus annuus (Asteraceae); Springer Wien; Plant Systematics And Evolution; 300; 5; 11-2013; 1071-1078
dc.identifier.issn 0378-2697
dc.identifier.uri http://hdl.handle.net/11336/12715
dc.description.abstract Genus Helianthus comprises diploid and polyploid species. An autoallopolyploid origin has been proposed for hexaploid species but the genomic relationships remain unclear. Mitotic and meiotic studies in annual Helianthus annuus (2n = 2x = 34) and perennial Helianthus resinosus (2n = 6x = 102) as well as the F1 hybrids between both species were carried out. Chromosome counting confirmed the hybrid origin of the latter plants and their tetraploid condition. Bivalents in hybrids ranged from 12 to 28 (x = 20.8). Univalents, trivalents and quadrivalents were also observed. Meiotic products comprised dyads, triads and normal tetrads and pollen grains were heterogeneous in size. These observations suggest the occurrence of 2n pollen in addition to the expected n. Genomic in situ hybridization (GISH) of total H. annuus DNA on H. resinosus chromosomes rendered weak but uniform signals; similar hybridization pattern was observed using three other annual species. Hybridization with H. annuus probe performed on root tip cells of F1 H. annuus9H. resinosus hybrids revealed 17 chromosomes with a strong hybridization signal. GISH in hybrid meiocytes distinguished chromosomes from parental species and revealed autosyndetic pairing of H. resinosus chromosomes, allosyndetic pairing in bivalents, trivalents and quadrivalents, and the presence of univalents derived from parents, H. annuus and H. resinosus. Results obtained from classical and molecular cytogenetics do not support H. annuus as a direct ancestor of H. resinosus. The occurrence of allosyndetic pairing and the relatively high fertility of the F1 hybrids point to the possibility that useful genes could be transferred from H. resinosus to cultivate sunflower, although the effective rate of recombination has not been evaluated. GISH method proved effective to recognize parental chromosomes in H. annuus9H. resinosus progeny.
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 2N POLLEN
dc.subject ALLOSYNDESIS
dc.subject GISH
dc.subject Interspecific hybrid
dc.subject POLYPLOIDY
dc.subject SUNFLOWER
dc.subject.classification Ciencias de las Plantas, Botánica
dc.subject.classification Ciencias Biológicas
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title Genomic relationships between hexaploid Helianthus resinosus and diploid Helianthus annuus (Asteraceae)
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2016-12-01T19:41:27Z
dc.journal.volume 300
dc.journal.number 5
dc.journal.pagination 1071-1078
dc.journal.pais Austria
dc.journal.ciudad Viena
dc.description.fil Fil: Zanetti, Julieta Miranda . Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida(i); Argentina
dc.description.fil Fil: Greizerstein, Eduardo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina. Universidad Nacional de Lomas de Zamora; Argentina
dc.description.fil Fil: Camadro, Elsa Lucila. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires. Estación Experimental Agropecuaria Balcarce; Argentina. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil Fil: Poverene, Maria Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida(i); Argentina. Universidad Nacional del Sur. Departamento de Agronomía; Argentina
dc.description.fil Fil: Echeverría, Mercedes. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires. Estación Experimental Agropecuaria Balcarce; Argentina
dc.description.fil Fil: Poggio, Lidia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina
dc.description.fil Fil: Carrera, Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida(i); Argentina. Universidad Nacional del Sur. Departamento de Agronomía; Argentina
dc.journal.title Plant Systematics And Evolution
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007%2Fs00606-013-0945-0
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/http://dx.doi.org/10.1007/s00606-013-0945-0


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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)