1. Department of Plant Pathology, The Pennsylvania State University, University Park 16802; and United States Department of Agriculture (USDA), Agriculture Research Service (ARS), Systematic Botany and Mycology Laboratory, Rm. 304, Bldg. 011A, BARC- West, Beltsville, Maryland 20705-2350
2. USDA, Animal and Plant Health Inspection Service, Systematic Botany and Mycology Laboratory, Rm. 329, Bldg. 011A, BARC- West, Beltsville Maryland 20705-2350
3. USDA, ARS, Soybean Genomics and Improvement Laboratory, Beltsville, Maryland 20705-2350
4. USDA, ARS, Molecular Plant Pathology Laboratory, Beltsville, Maryland 20705-2350