1. Department of Plant Pathology, North Dakota State University, Fargo, North Dakota 58102, USA;
2. Department of Plant Pathology and Microbiology, Iowa State University, Ames, Iowa 50011, USA
3. Iowa Soybean Association, Ankeny, Iowa 50023, USA
4. The Sainsbury Laboratory, Norwich, NR4 7UH, United Kingdom
5. School of Biological Sciences, University of East Anglia, Norwich, NR4 7TJ, United Kingdom
6. The 2Blades Foundation, Evanston, Illinois 60201, USA