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dc.creatorKarunarathne, Piyal
dc.creatorReutemann, Anna V.
dc.creatorSchedler, Mara
dc.creatorMartínez, Eric Javier
dc.creatorHonfi, Ana Isabel
dc.creatorHojsgaard, Diego Hernán
dc.date.accessioned2022-08-05T23:49:25Z
dc.date.available2022-08-05T23:49:25Z
dc.date.issued2020-05-20
dc.identifier.citationKarunarathne, P., Reutemann, A. V., Schedler, M., Glücksberg, A., Martínez, E. J., Honfi, I., y Hojsgaard, D. H. (2020). Sexual modulation in a polyploid Grass: a reproductive contest between environmentally inducible sexual and genetically dominant apomictic pathways. Scientific Reports. Springer Nature editor, 10(8319). 14 p.es_AR
dc.identifier.issn2045-2322
dc.identifier.otherCCPI-CNyE-A-073
dc.identifier.urihttps://hdl.handle.net/20.500.12219/3341
dc.descriptionFil: Karunarathne, Piyal. University of Goettingen. Albrecht-von-Haller Institute for Plant Sciences. Department of Systematics, Biodiversity and Evolution of Plants; Alemania.es_AR
dc.descriptionFil: Reutemann, Anna V. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina.es_AR
dc.descriptionFil: Schedler, Mara. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina.es_AR
dc.descriptionFil: Martínez, Eric Javier. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina.es_AR
dc.descriptionFil: Honfi, Ana Isabel. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina.es_AR
dc.descriptionFil: Honfi, Ana Isabel. Universidad Nacional de Misiones. Facultad de Ciencias Exactas, Químicas y Naturales. Instituto de Biología Subtropical; Argentina.es_AR
dc.descriptionFil: Honfi, Ana Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología Subtropical. Programa de Estudios Florísticos y Genética Vegeta; Argentina.es_AR
dc.descriptionFil: Hojsgaard, Diego Hernán. University of Goettingen. Albrecht-von-Haller Institute for Plant Sciences. Department of Systematics, Biodiversity and Evolution of Plants; Alemania.es_AR
dc.description.abstractIn systems alternating between sexual and asexual reproduction, sex increases under unfavorable environmental conditions. In plants producing sexual and asexual (apomictic) seeds, studies on the influence of environmental factors on sex are equivocal. We used Paspalum intermedium to study environmental effects on the expression of sexual and apomictic developments, and on resulting reproductive fitness variables. Flow cytometric and embryological analyses were performed to characterize ploidy and reproductive modes, and effects of local climatic conditions on sexual and apomictic ovule and seed frequencies were determined. Seed set and germination data were collected and used to estimate reproductive fitness. Frequencies of sexual and apomictic ovules and seeds were highly variable within and among populations. Apomictic development exhibited higher competitive ability but lower overall fitness. Frequencies of sexual reproduction in facultative apomictic plants increased at lower temperatures and wider mean diurnal temperature ranges. We identified a two-fold higher fitness advantage of sexuality and a Tug of War between factors intrinsic to apomixis and environmental stressors promoting sexuality which influence the distribution of sex in apomictic populations. This points toward a crucial role of local ecological conditions in promoting a reshuffling of genetic variability that may be shaping the adaptative landscape in apomictic P. intermedium plants.es_AR
dc.language.isoenges_AR
dc.publisherSpringer Nature editores_AR
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/10.1038/s41598-020-64982-6
dc.relationinfo:eu-repo/semantics/altIdentifier/urn/https://www.nature.com/articles/s41598-020-64982-6.pdf
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectSexual modulationes_AR
dc.subjectPolyploid grasses_AR
dc.titleSexual modulation in a polyploid Grass : a reproductive contest between environmentally inducible sexual and genetically dominant apomictic pathwayses_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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