1. Biosciences eastern and central Africa – International Livestock Research Institute (BecA-ILRI), Nairobi, Kenya
2. Department of Entomology and Plant Pathology, University of Arkansas, Fayetteville, AR 72701, U.S.A.
3. Department of Agricultural Resource Management, University of Embu, Embu, Kenya
4. The Sainsbury Laboratory, University of East Anglia, Norwich NR4 7UH, U.K.
5. Kenya Agricultural and Livestock Research Organization (KALRO), Nairobi, Kenya
6. Tanzania Agricultural Research Institute, Arusha, Tanzania
7. National Agricultural Research Organization, Kampala, Uganda
8. Institute of Environment and Agricultural Research, Bobo-Dioulasso, Burkina Faso
9. Institut Polytechnique Unilasalle, 60000 Beauvais, France
10. International Rice Research Institute (IRRI), Bujumbura, Burundi
11. IRRI, Los Baños, 4030 Laguna, Philippines
12. Department of Plant Pathology, The Ohio State University, Columbus, OH 43210, U.S.A.