1. Plant Pathology and Plant-Microbe Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY 14853, U.S.A.
2. Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
3. Laboratory of Plant Pathology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
4. Department of Plant Pathology, University of California, Davis, Davis, CA 95616, U.S.A.
5. Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan
6. Department of Plant Pathology, University of Georgia, Athens, GA 30602, U.S.A.