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dc.contributor.author
Martinez, Analia Beatriz Luján  
dc.contributor.author
Lema, Veronica Soledad  
dc.contributor.author
Capparelli, Aylen  
dc.contributor.author
Lopez Anido, Fernando Sebastian  
dc.contributor.author
Benech-Arnold, Roberto Luis  
dc.contributor.author
Bartoli, Carlos Guillermo  
dc.date.available
2018-11-23T22:13:15Z  
dc.date.issued
2017-11  
dc.identifier.citation
Martinez, Analia Beatriz Luján; Lema, Veronica Soledad; Capparelli, Aylen; Lopez Anido, Fernando Sebastian; Benech-Arnold, Roberto Luis; et al.; Differences in seed dormancy associated with the domestication of Cucurbita maxima: Elucidation of some mechanisms behind this response; Cambridge University Press; Seed Science Research; 28; 1; 11-2017; 1-7  
dc.identifier.issn
0960-2585  
dc.identifier.uri
http://hdl.handle.net/11336/65100  
dc.description.abstract
This work presents the results of physiological studies developed to understand modifications linked to the reduction of seed dormancy provoked by domestication processes. The experiments performed compared wild and domesticated Cucurbita subspecies and their hybrids developed by reciprocal crossings. Seeds of two accessions of the wild subspecies presented dormancy, but it was largely reduced in seeds from the domesticated genotype, and partially reverted in hybrids, especially in those obtained when the domesticated genotype was used as the mother plant. In addition, naked embryos of all subspecies did not display dormancy when incubation was performed at 28°C, but embryo germination was progressively reduced only in the wild genotype under decreasing incubation temperatures (22 and 16°C). In the embryos, abscisic acid (ABA) concentrations were similar in both domesticated and wild subspecies, whereas in the seed coat, it was threefold higher in the wild subspecies. The naked embryos from the wild subspecies were far more responsive to ABA than those from the domesticated subspecies. These results indicate that dormancy in the wild subspecies is imposed by the seed coat tissues and that this effect is mediated by their high ABA content and the sensitivity of the embryos to ABA. These physiological aspects were apparently removed by domestication along with the temperature-dependent response for germination.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Cambridge University Press  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Abscisic Acid  
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Cucurbita Maxima  
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Domestication  
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Dormancy  
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Embryo  
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Seed  
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Otras Ciencias Biológicas  
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Ciencias Biológicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Differences in seed dormancy associated with the domestication of Cucurbita maxima: Elucidation of some mechanisms behind this response  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2018-10-22T22:32:45Z  
dc.journal.volume
28  
dc.journal.number
1  
dc.journal.pagination
1-7  
dc.journal.pais
Reino Unido  
dc.journal.ciudad
Cambridge  
dc.description.fil
Fil: Martinez, Analia Beatriz Luján. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Fisiología Vegetal. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Fisiología Vegetal; Argentina  
dc.description.fil
Fil: Lema, Veronica Soledad. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Laboratorio de Etnobotánica y Botánica Aplicada; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina  
dc.description.fil
Fil: Capparelli, Aylen. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Arqueología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina  
dc.description.fil
Fil: Lopez Anido, Fernando Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Investigaciones en Ciencias Agrarias de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias. Instituto de Investigaciones en Ciencias Agrarias de Rosario; Argentina  
dc.description.fil
Fil: Benech-Arnold, Roberto Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Fisiología Vegetal. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Fisiología Vegetal; Argentina  
dc.description.fil
Fil: Bartoli, Carlos Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Fisiología Vegetal. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Fisiología Vegetal; Argentina  
dc.journal.title
Seed Science Research  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1017/S0960258517000320  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/seed-science-research/article/differences-in-seed-dormancy-associated-with-the-domestication-of-cucurbita-maxima-elucidation-of-some-mechanisms-behind-this-response/5D23F34734E57B74B087950CA0B891B2