1. Division of Plant and Soil Sciences, West Virginia University, Morgantown, West Virginia 26506
2. Department of Plant Pathology and Environmental Microbiology, The Pennsylvania State University, University Park, Pennsylvania 16802
3. Department of Microbiology and Plant Pathology and Institute for Integrative Genome Biology, University of California, Riverside, California 92521
4. Institute of Environmental Sciences, Jagiellonian University, 30-387 Kraków, Poland
5. Division of Biological Sciences, University of Montana, Missoula, Montana 59812
6. Department of Ecological Sciences, Science Faculty, University of Chile, Santiago, Chile
7. Plant Pathology and Plant-Microbe Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, New York 14853