Sexual modulation in a polyploid Grass : a reproductive contest between environmentally inducible sexual and genetically dominant apomictic pathways

Fil: Karunarathne, Piyal. University of Goettingen. Albrecht-von-Haller Institute for Plant Sciences. Department of Systematics, Biodiversity and Evolution of Plants; Alemania.

Detalles Bibliográficos
Autores principales: Karunarathne, Piyal, Reutemann, Anna V., Schedler, Mara, Martínez, Eric Javier, Honfi, Ana Isabel, Hojsgaard, Diego Hernán
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: Springer Nature editor 2020
Materias:
Sexual modulation
Polyploid grass
Acceso en línea:https://hdl.handle.net/20.500.12219/3341
Aporte de:
Repositorio Institucional Digital de la UNaM (RIDUNAM) de Universidad Nacional de Misiones
id I77-R195-20.500.12219-3341
record_format dspace
spelling I77-R195-20.500.12219-33412024-05-31T14:15:41Z Sexual modulation in a polyploid Grass : a reproductive contest between environmentally inducible sexual and genetically dominant apomictic pathways Karunarathne, Piyal Reutemann, Anna V. Schedler, Mara Martínez, Eric Javier Honfi, Ana Isabel Hojsgaard, Diego Hernán Sexual modulation Polyploid grass Fil: Karunarathne, Piyal. University of Goettingen. Albrecht-von-Haller Institute for Plant Sciences. Department of Systematics, Biodiversity and Evolution of Plants; Alemania. Fil: Reutemann, Anna V. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina. Fil: Schedler, Mara. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina. Fil: Martínez, Eric Javier. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina. Fil: Honfi, Ana Isabel. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina. Fil: Honfi, Ana Isabel. Universidad Nacional de Misiones. Facultad de Ciencias Exactas, Químicas y Naturales. Instituto de Biología Subtropical; Argentina. Fil: Honfi, Ana Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología Subtropical. Programa de Estudios Florísticos y Genética Vegeta; Argentina. Fil: Hojsgaard, Diego Hernán. University of Goettingen. Albrecht-von-Haller Institute for Plant Sciences. Department of Systematics, Biodiversity and Evolution of Plants; Alemania. In 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. 2020-05-20 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion https://hdl.handle.net/20.500.12219/3341 eng info:eu-repo/semantics/altIdentifier/doi/10.1038/s41598-020-64982-6 info:eu-repo/semantics/altIdentifier/urn/https://www.nature.com/articles/s41598-020-64982-6.pdf info:eu-repo/semantics/openAccess application/pdf Springer Nature editor
institution Universidad Nacional de Misiones
institution_str I-77
repository_str R-195
collection Repositorio Institucional Digital de la UNaM (RIDUNAM)
language Inglés
topic Sexual modulation
Polyploid grass
spellingShingle Sexual modulation
Polyploid grass
Karunarathne, Piyal
Reutemann, Anna V.
Schedler, Mara
Martínez, Eric Javier
Honfi, Ana Isabel
Hojsgaard, Diego Hernán
Sexual modulation in a polyploid Grass : a reproductive contest between environmentally inducible sexual and genetically dominant apomictic pathways
topic_facet Sexual modulation
Polyploid grass
description Fil: Karunarathne, Piyal. University of Goettingen. Albrecht-von-Haller Institute for Plant Sciences. Department of Systematics, Biodiversity and Evolution of Plants; Alemania.
format Artículo
Artículo
publishedVersion
author Karunarathne, Piyal
Reutemann, Anna V.
Schedler, Mara
Martínez, Eric Javier
Honfi, Ana Isabel
Hojsgaard, Diego Hernán
author_facet Karunarathne, Piyal
Reutemann, Anna V.
Schedler, Mara
Martínez, Eric Javier
Honfi, Ana Isabel
Hojsgaard, Diego Hernán
author_sort Karunarathne, Piyal
title Sexual modulation in a polyploid Grass : a reproductive contest between environmentally inducible sexual and genetically dominant apomictic pathways
title_short Sexual modulation in a polyploid Grass : a reproductive contest between environmentally inducible sexual and genetically dominant apomictic pathways
title_full Sexual modulation in a polyploid Grass : a reproductive contest between environmentally inducible sexual and genetically dominant apomictic pathways
title_fullStr Sexual modulation in a polyploid Grass : a reproductive contest between environmentally inducible sexual and genetically dominant apomictic pathways
title_full_unstemmed Sexual modulation in a polyploid Grass : a reproductive contest between environmentally inducible sexual and genetically dominant apomictic pathways
title_sort sexual modulation in a polyploid grass : a reproductive contest between environmentally inducible sexual and genetically dominant apomictic pathways
publisher Springer Nature editor
publishDate 2020
url https://hdl.handle.net/20.500.12219/3341
work_keys_str_mv AT karunarathnepiyal sexualmodulationinapolyploidgrassareproductivecontestbetweenenvironmentallyinduciblesexualandgeneticallydominantapomicticpathways
AT reutemannannav sexualmodulationinapolyploidgrassareproductivecontestbetweenenvironmentallyinduciblesexualandgeneticallydominantapomicticpathways
AT schedlermara sexualmodulationinapolyploidgrassareproductivecontestbetweenenvironmentallyinduciblesexualandgeneticallydominantapomicticpathways
AT martinezericjavier sexualmodulationinapolyploidgrassareproductivecontestbetweenenvironmentallyinduciblesexualandgeneticallydominantapomicticpathways
AT honfianaisabel sexualmodulationinapolyploidgrassareproductivecontestbetweenenvironmentallyinduciblesexualandgeneticallydominantapomicticpathways
AT hojsgaarddiegohernan sexualmodulationinapolyploidgrassareproductivecontestbetweenenvironmentallyinduciblesexualandgeneticallydominantapomicticpathways
_version_ 1809776538971799552

Ejemplares similares