1. Department of Plant Pathology, University of California Davis, Davis, California, USA
2. Department of Plant and Microbial Biology, University of California Berkeley, Berkeley, California, USA
3. Emerging Pests and Pathogens Research Unit, Robert W. Holley Center, Agricultural Research Service, U.S. Department of Agriculture, Ithaca, New York, USA
4. Department of Plant Pathology, University of Wisconsin—Madison, Madison, Wisconsin, USA
5. Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA