Geographic variation in festuca rubra L. ploidy levels and systemic fungal endophyte frequencies

• Main Authors: Dirihan, Serdar, Helander, Marjo, Väre, Henry, Gundel, Pedro E., Garibaldi, Lucas Alejandro, Irisarri, Jorge G., Saloniemi, Irma, Saikkonen, Kari
• Language: English
• Published: 11 2016
• Subjects: Ciencias Exactas y Naturales; Biogeography; Cytogeography; Festuca Rubra; Fungal Endophyte; Geographic Mosaics; Latitudinal Gradients; Argentina; Garibaldi; Greenland; Kari; Saloniemi
• Online Access: https://rid.unrn.edu.ar/jspui/handle/20.500.12049/2928; https://hdl.handle.net/20.500.12049/2928; http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0166264; https://doi.org/10.1371/journal.pone.0166264; http://hdl.handle.net/11336/50091

Fil: Dirihan, Serdar. University of Turku; Finlandia Fil: Helander, Marjo. University of Turku; Finlandia Fil: Väre, Henry. University Of Helsinski; Finlandia Fil: Gundel, Pedro E. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario; Argentina Fil: Gundel, Pedro E. Universidad de Buenos Aires. Facultad de Agronomía; Argentina Fil: Gundel, Pedro E. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina Fil: Garibaldi, Lucas Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Garibaldi, Lucas Alejandro. Universidad Nacional de Río Negro; Argentina Fil: Irisarri, Jorge G. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario; Argentina Fil: Irisarri, Jorge G. Universidad de Buenos Aires. Facultad de Agronomía; Argentina Fil: Irisarri, Jorge G. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina Fil: Saloniemi, Irma. University of Turku; Finlandia Fil: Saikkonen, Kari. Natural Resources Institute Finland; Finlandia true Polyploidy and symbiotic Epichloë fungal endophytes are common and heritable characteristics that can facilitate environmental range expansion in grasses. Here we examined geographic patterns of polyploidy and the frequency of fungal endophyte colonized plants in 29 Festuca rubra L. populations from eight geographic sites across latitudes from Spain to northernmost Finland and Greenland. Ploidy seemed to be positively and negatively correlated with latitude and productivity, respectively. However, the correlations were nonlinear; 84% of the plants were hexaploids (2n = 6x = 42), and the positive correlation between ploidy level and latitude is the result of only four populations skewing the data. In the southernmost end of the gradient 86% of the plants were tetraploids (2n = 4x = 28), whereas in the northernmost end of the gradient ...