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dc.contributor.author
Bellucci, Michele
dc.contributor.author
Caceres, Maria Eugenia
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Paolocci, Francesco
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Vega, Juan Manuel
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Ortiz, Juan Pablo Amelio
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Ceccarelli, Marilena
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De Marchis, Francesca
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Pupilli, Fulvio
dc.date.available
2024-09-18T12:49:46Z
dc.date.issued
2023-05
dc.identifier.citation
Bellucci, Michele; Caceres, Maria Eugenia; Paolocci, Francesco; Vega, Juan Manuel; Ortiz, Juan Pablo Amelio; et al.; Origin of recognition complex 3 controls the development of maternal excess endosperm in the Paspalum simplex agamic complex ( Poaceae ); Oxford University Press; Journal of Experimental Botany; 74; 10; 5-2023; 3074-3093
dc.identifier.issn
0022-0957
dc.identifier.uri
http://hdl.handle.net/11336/244553
dc.description.abstract
Pseudogamous apomixis in Paspalum simplex generates seeds with embryos genetically identical to the mother plant and endosperms deviating from the canonical 2(maternal):1(paternal) parental genome contribution into a maternal excess 4m:1p genome ratio. In P. simplex the gene homologous to the one coding for the subunit 3 of the ORIGIN OF RECOGNITION COMPLEX (PsORC3) exists in three isogenic forms: PsORC3a is apomixis-specific and constitutively expressed in developing endosperm whereas PsORCb and PsORCc are up regulated in sexual endosperms and silenced in apomictic ones. This raises the question of how the different arrangement and expression profiles of these three ORC3 isogenes are linked to seed development in interploidy crosses generating maternal excess endosperms. We demonstrate that the PsORC3b downregulation in sexual tetraploid plants is sufficient to restore seed fertility in interploidy 4n x 2n crosses and, in turn, its expression level at the transition from proliferating to endoreduplication endosperm developmental stages dictates the fate of these seeds. Furthermore, we show that only when being maternally inherited, PsORC3c can up-regulate PsORC3b. Our findings lay the basis for an innovative route - based on ORC3 manipulation - to introgress the apomictic trait into sexual crops and overcome the fertilization barriers in interploidy crosses.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Oxford University Press
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
apomixis
dc.subject
interploidy crosses
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maternal excess endosperm
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Paspalum simplex
dc.subject.classification
Bioquímica y Biología Molecular
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Origin of recognition complex 3 controls the development of maternal excess endosperm in the Paspalum simplex agamic complex ( Poaceae )
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-04-17T13:05:01Z
dc.journal.volume
74
dc.journal.number
10
dc.journal.pagination
3074-3093
dc.journal.pais
Reino Unido
dc.description.fil
Fil: Bellucci, Michele. Centre National de la Recherche Scientifique; Francia
dc.description.fil
Fil: Caceres, Maria Eugenia. Centre National de la Recherche Scientifique; Francia
dc.description.fil
Fil: Paolocci, Francesco. Centre National de la Recherche Scientifique; Francia
dc.description.fil
Fil: Vega, Juan Manuel. 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: Ortiz, Juan Pablo Amelio. 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: Ceccarelli, Marilena. Università di Perugia; Italia
dc.description.fil
Fil: De Marchis, Francesca. Centre National de la Recherche Scientifique; Francia
dc.description.fil
Fil: Pupilli, Fulvio. Centre National de la Recherche Scientifique; Francia
dc.journal.title
Journal of Experimental Botany
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/jxb/advance-article/doi/10.1093/jxb/erad069/7051163
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1093/jxb/erad069
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