Can achene selection in sunflower crop–wild hybrids by pre-dispersal seed predators hasten the return to phenotypically wild sunflowers
Bird attack is a serious limitation to sunflower yield in several regions of the world, but it could also cause selection. The wild Helianthus annuus, naturalized in several regions of the world, hybridizes with the crop and produces crop–wild offspring. It is unknown how the selective force of seed...
| Autores principales: | , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
2018
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/2607 https://link.springer.com/article/10.1007/s10681-015-1579-9 https://doi.org/10.1007/s10681-015-1579-9 |
| _version_ | 1855034992742105088 |
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| author | Presotto, Alejandro Daniel Pandolfo, Claudio Ezequiel Poverene, Maria Monica Cantamutto, Miguel Angel |
| author_browse | Cantamutto, Miguel Angel Pandolfo, Claudio Ezequiel Poverene, Maria Monica Presotto, Alejandro Daniel |
| author_facet | Presotto, Alejandro Daniel Pandolfo, Claudio Ezequiel Poverene, Maria Monica Cantamutto, Miguel Angel |
| author_sort | Presotto, Alejandro Daniel |
| collection | INTA Digital |
| description | Bird attack is a serious limitation to sunflower yield in several regions of the world, but it could also cause selection. The wild Helianthus annuus, naturalized in several regions of the world, hybridizes with the crop and produces crop–wild offspring. It is unknown how the selective force of seed predation by birds could drive evolution after a hybridization event. After two generations of natural selection exerted by birds (mostly by Eared Dove and Monk Parakeets), achene and plant traits of the crop–wild hybrid progeny were compared with the same hybrid progeny without any selection by birds. After two generations of bird selection the achene width, thickness and weight decreased by an average of 18.5, 26.7 and 49.2 %, respectively. Also in response to bird
selection there was a correlated increase in the plant height, stem diameter, number of heads and a reduction in head diameter and the number of achenes per head. The phenotype of crop–wild plants selected by birds resembles wild plants, whereas the plants without any selection were intermediate between the parents. These results indicate that selection exerted
by birds could result in the rapid evolution of crop–wild sunflower populations. |
| format | info:ar-repo/semantics/artículo |
| id | INTA2607 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | INTA26072019-11-21T11:51:47Z Can achene selection in sunflower crop–wild hybrids by pre-dispersal seed predators hasten the return to phenotypically wild sunflowers Presotto, Alejandro Daniel Pandolfo, Claudio Ezequiel Poverene, Maria Monica Cantamutto, Miguel Angel Helianthus Annuus Pájaros Pepredadores Fenotipos Phenotypes Predatory Birds Girasol Sunflower Bird attack is a serious limitation to sunflower yield in several regions of the world, but it could also cause selection. The wild Helianthus annuus, naturalized in several regions of the world, hybridizes with the crop and produces crop–wild offspring. It is unknown how the selective force of seed predation by birds could drive evolution after a hybridization event. After two generations of natural selection exerted by birds (mostly by Eared Dove and Monk Parakeets), achene and plant traits of the crop–wild hybrid progeny were compared with the same hybrid progeny without any selection by birds. After two generations of bird selection the achene width, thickness and weight decreased by an average of 18.5, 26.7 and 49.2 %, respectively. Also in response to bird selection there was a correlated increase in the plant height, stem diameter, number of heads and a reduction in head diameter and the number of achenes per head. The phenotype of crop–wild plants selected by birds resembles wild plants, whereas the plants without any selection were intermediate between the parents. These results indicate that selection exerted by birds could result in the rapid evolution of crop–wild sunflower populations. Fil: Presotto, Alejandro Daniel. Universidad Nacional del Sur. Departamento de Agronomía. Laboratorio de Genética y Mejoramiento; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina Fil: Pandolfo, Claudio Ezequiel. Universidad Nacional del Sur. Departamento de Agronomía; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina Fil: Poverene, Maria Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina; Universidad Nacional del Sur. Departamento de Agronomía; Argentina Fil: Cantamutto, Miguel Angel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Hilario Ascasubi; Argentina. Universidad Nacional del Sur. Departamento de Agronomía; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina 2018-06-12T18:14:36Z 2018-06-12T18:14:36Z 2016-04 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/2607 https://link.springer.com/article/10.1007/s10681-015-1579-9 0014-2336 1573-5060 (Online) https://doi.org/10.1007/s10681-015-1579-9 eng info:eu-repo/semantics/restrictedAccess application/pdf Euphytica 208 (3) : 453–462. (2016) |
| spellingShingle | Helianthus Annuus Pájaros Pepredadores Fenotipos Phenotypes Predatory Birds Girasol Sunflower Presotto, Alejandro Daniel Pandolfo, Claudio Ezequiel Poverene, Maria Monica Cantamutto, Miguel Angel Can achene selection in sunflower crop–wild hybrids by pre-dispersal seed predators hasten the return to phenotypically wild sunflowers |
| title | Can achene selection in sunflower crop–wild hybrids by pre-dispersal seed predators hasten the return to phenotypically wild sunflowers |
| title_full | Can achene selection in sunflower crop–wild hybrids by pre-dispersal seed predators hasten the return to phenotypically wild sunflowers |
| title_fullStr | Can achene selection in sunflower crop–wild hybrids by pre-dispersal seed predators hasten the return to phenotypically wild sunflowers |
| title_full_unstemmed | Can achene selection in sunflower crop–wild hybrids by pre-dispersal seed predators hasten the return to phenotypically wild sunflowers |
| title_short | Can achene selection in sunflower crop–wild hybrids by pre-dispersal seed predators hasten the return to phenotypically wild sunflowers |
| title_sort | can achene selection in sunflower crop wild hybrids by pre dispersal seed predators hasten the return to phenotypically wild sunflowers |
| topic | Helianthus Annuus Pájaros Pepredadores Fenotipos Phenotypes Predatory Birds Girasol Sunflower |
| url | http://hdl.handle.net/20.500.12123/2607 https://link.springer.com/article/10.1007/s10681-015-1579-9 https://doi.org/10.1007/s10681-015-1579-9 |
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