caa a22 4500 445845139 CHVBK 20180317145356.0 cr unu---uuuuu 170323e20110701xx s 000 0 eng 10.1007/s10709-011-9594-9 doi (NATIONALLICENCE)springer-10.1007/s10709-011-9594-9 The adaptive potential of a plant pathogenic fungus, Rhizoctonia solani AG-3, under heat and fungicide stress [Elektronische Daten] [Yvonne Willi, Aline Frank, Renate Heinzelmann, Andrea Kälin, Lena Spalinger, Paulo Ceresini] The ability to improve fitness via adaptive evolution may be affected by environmental change. We tested this hypothesis in an in vitro experiment with the plant pathogen Rhizoctonia solani Anastomosis Group 3 (AG-3), assessing genetic and environmental variances under two temperatures (optimal and higher than optimal) and three fungicide concentrations (no fungicide, low and high concentration of a copper-based fungicide). We measured the mean daily growth rate, the coefficient of variation for genotypic (I G) and environmental variance (I E) in growth, and broad-sense heritability in growth. Both higher temperature and increased fungicide concentration caused a decline in growth, confirming their potential as stressors for the pathogen. All types of standardized variances in growth—I G, phenotypic variance, and I E as a trend—increased with elevated stress. However, heritability was not significantly higher under enhanced stress because the increase in I G was counterbalanced by somewhat increased I E. The results illustrate that predictions for adaptation under environmental stress may depend on the type of short-term evolvability measure. Because mycelial growth is linked to fitness, I G reflects short-term evolvability better than heritability, and it indicates that the evolutionary potential of R. solani is positively affected by stress. Springer Science+Business Media B.V., 2011 Evolvability nationallicence Fungicide resistance nationallicence Genetic variation nationallicence Heat-stress nationallicence Optimal temperature nationallicence Willi Yvonne Institute of Integrative Biology, Plant Pathology, ETH Zürich, 8092, Zürich, Switzerland aut Frank Aline Institute of Integrative Biology, Plant Pathology, ETH Zürich, 8092, Zürich, Switzerland aut Heinzelmann Renate Institute of Integrative Biology, Plant Pathology, ETH Zürich, 8092, Zürich, Switzerland aut Kälin Andrea Institute of Integrative Biology, Plant Pathology, ETH Zürich, 8092, Zürich, Switzerland aut Spalinger Lena Institute of Integrative Biology, Plant Pathology, ETH Zürich, 8092, Zürich, Switzerland aut Ceresini Paulo Institute of Integrative Biology, Plant Pathology, ETH Zürich, 8092, Zürich, Switzerland aut Genetica Springer Netherlands 139/7(2011-07-01), 903-908 0016-6707 139:7<903 2011 139 10709 https://doi.org/10.1007/s10709-011-9594-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10709-011-9594-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Willi Yvonne Institute of Integrative Biology, Plant Pathology, ETH Zürich, 8092, Zürich, Switzerland aut NATIONALLICENCE 700 1- Frank Aline Institute of Integrative Biology, Plant Pathology, ETH Zürich, 8092, Zürich, Switzerland aut NATIONALLICENCE 700 1- Heinzelmann Renate Institute of Integrative Biology, Plant Pathology, ETH Zürich, 8092, Zürich, Switzerland aut NATIONALLICENCE 700 1- Kälin Andrea Institute of Integrative Biology, Plant Pathology, ETH Zürich, 8092, Zürich, Switzerland aut NATIONALLICENCE 700 1- Spalinger Lena Institute of Integrative Biology, Plant Pathology, ETH Zürich, 8092, Zürich, Switzerland aut NATIONALLICENCE 700 1- Ceresini Paulo Institute of Integrative Biology, Plant Pathology, ETH Zürich, 8092, Zürich, Switzerland aut NATIONALLICENCE 773 0- Genetica Springer Netherlands 139/7(2011-07-01), 903-908 0016-6707 139:7<903 2011 139 10709 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer