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dc.contributor.author
Martelotto, Luciano G.
dc.contributor.author
Ortiz, Juan Pablo Amelio
dc.contributor.author
Stein, Juliana
dc.contributor.author
Espinoza, Francisco
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Quarin, Camilo Luis
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Pessino, Silvina Claudia
dc.date.available
2018-05-31T18:53:08Z
dc.date.issued
2007-12
dc.identifier.citation
Martelotto, Luciano G.; Ortiz, Juan Pablo Amelio; Stein, Juliana; Espinoza, Francisco; Quarin, Camilo Luis; et al.; Genome rearrangements derived from autopolyploidization in Paspalum sp.; Elsevier Ireland; Plant Science; 172; 5; 12-2007; 970-977
dc.identifier.issn
0168-9452
dc.identifier.uri
http://hdl.handle.net/11336/46853
dc.description.abstract
Rapid sequence rearrangements along with alterations in cytosine-directed methylation patterns follow allopolyploid formation in several plant species. The occurrence of similar changes is yet to be examined in detail during the generation of autopolyploids. The objective of this work was to investigate the presence of nascent variation in genome sequence after autopolyploidization in two Paspalum species. The increments of ploidy level were produced either by hybridization involving unreduced gametes or colchicine treatment. Genetic modifications affected 15–23% and 9.55% of the genomic loci in Paspalum rufum and Paspalum notatum, respectively. In all cases the frequency of band loss from the progenitors was significantly higher than that of novel band gain. In random amplified polymorphic DNA (RAPD) experiments the majority of polymorphisms were detected by particular sets of primers, suggesting that repetitive domains were preferentially targeted. Several P. notatum polymorphic fragments were cloned, sequenced and used as probes in genomic hybridization analyses. Some of them corresponded to interspersed middle-repetitive sequences with unknown function. Methylation-sensitive genomic hybridization showed that sequence modifications occurred invariably in cytosine-methylated regions, which remained methylated after polyploidization.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Ireland
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Autoploidy
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Genome Evolution
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Genome Variation
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Molecular Markers
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Genética y Herencia
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Genome rearrangements derived from autopolyploidization in Paspalum sp.
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-05-21T16:58:10Z
dc.journal.volume
172
dc.journal.number
5
dc.journal.pagination
970-977
dc.journal.pais
Irlanda
dc.description.fil
Fil: Martelotto, Luciano G.. Universidad Nacional de Rosario; Argentina
dc.description.fil
Fil: Ortiz, Juan Pablo Amelio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina. Universidad Nacional de Rosario; Argentina
dc.description.fil
Fil: Stein, Juliana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias; Argentina
dc.description.fil
Fil: Espinoza, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina
dc.description.fil
Fil: Quarin, Camilo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina
dc.description.fil
Fil: Pessino, Silvina Claudia. 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.journal.title
Plant Science
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1016/j.plantsci.2007.02.001
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0168945207000520


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