Registro:
Título en inglés:
Mutualism effectiveness and vertical transmission of symbiotic fungal endophytes in response to host genetic background
Autor/es:
Gundel, Pedro Emilio; Martínez Ghersa, María Alejandra; Omacini, Marina; Cuyeu, R.; Pagano, Elba; Ríos, R.; Ghersa, Claudio Marco
Filiación:
Fil: Gundel, Pedro Emilio. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
Fil: Gundel, Pedro Emilio. CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
Fil: Gundel, Pedro Emilio. MTT Agrifood Research. Plant Protection. Finland.
Fil: Martínez Ghersa, María Alejandra. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
Fil: Martínez Ghersa, María Alejandra. CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
Fil: Omacini, Marina. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
Fil: Omacini, Marina. CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
Fil: Cuyeu, R. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro de Investigación en Ciencias Agropecuarias. Instituto de Genética "Ewald A. Favret". Castelar, Buenos Aires, Argentina.
Fil: Pagano, Elba. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro de Investigación en Ciencias Agropecuarias. Instituto de Genética "Ewald A. Favret". Castelar, Buenos Aires, Argentina.
Fil: Ríos, R. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro de Investigación en Ciencias Agropecuarias. Instituto de Genética "Ewald A. Favret". Castelar, Buenos Aires, Argentina.
Fil: Ghersa, Claudio Marco. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
Fil: Ghersa, Claudio Marco. CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
Título revista:
Evolutionary Applications
Temas:
ENVIRONMENTAL STRESS; GENETIC SPECIFICITY; GRASS-ENDOPHYTE INTERACTION; HYBRID VIGOR; TRANSMISSION EFFICIENCY
Resumen:
Certain species of the Pooideae subfamily develop stress tolerance and herbivory resistance through symbiosis with vertically transmitted, asexual fungi. This symbiosis is specific, and genetic factors modulate the compatibility between partners. Although gene flow is clearly a fitness trait in allogamous grasses, because it injects hybrid vigor and raw material for evolution, it could reduce compatibility and thus mutualism effectiveness. To explore the importance of host genetic background in modulating the performance of symbiosis, Lolium multiflorum plants, infected and noninfected with Neotyphodium occultans, were crossed with genetically distant plants of isolines (susceptible and resistant to diclofop-methyl herbicide) bred from two cultivars and exposed to stress. The endophyte improved seedling survival in genotypes susceptible to herbicide, while it had a negative effect on one of the genetically resistant crosses. Mutualism provided resistance to herbivory independently of the host genotype, but this effect vanished under stress. While no endophyte effect was observed on host reproductive success, it was increased by interpopulation plant crosses. Neither gene flow nor herbicide had an important impact on endophyte transmission. Host fitness improvements attributable to gene flow do not appear to result in direct conflict with mutualism while this seems to be an important mechanism for the ecological and contemporary evolution of the symbiotum.
Citación:
---------- APA ----------
Gundel, P. E., Martínez-Ghersa, M. A., Omacini, M., Cuyeu, R., Pagano, E., Ríos, R., & Ghersa, C. M. (2012). Mutualism effectiveness and vertical transmission of symbiotic fungal endophytes in response to host genetic background. Evolutionary Applications,5, (8),p.838-849
10.1111/j.1752-4571.2012.00261.x
---------- CHICAGO ----------
Gundel, Pedro Emilio,Martínez Ghersa, María Alejandra,Omacini, Marina,Cuyeu, R.,Pagano, Elba,Ríos, R., et al.. 2012. "Mutualism effectiveness and vertical transmission of symbiotic fungal endophytes in response to host genetic background". Evolutionary Applications 5, no.8:838-849.
Recuperado de http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2012Gundel