1. First and second authors: Department of Plant Pathology, University of Minnesota, St. Paul 55108; third, fourth, fifth, sixth, and twenty-second authors: United States Department of Agriculture–Agricultural Research Service (USDA-ARS) Cereal Disease Laboratory, University of Minnesota, St. Paul; seventh author: USDA-ARS Foreign Disease-Weed Science Research Unit, Ft. Detrick, MD 21702; eighth author: International Maize and Wheat Improvement Center (CIMMYT)-Ethiopia, Addis Ababa, Ethiopia; ninth and...