1. Louisiana State University Agricultural Center, Baton Rouge
2. U.S. Department of Agriculture, Animal and Plant Health Inspection Service, Plant Germplasm Quarantine Programs, Beltsville, MD
3. International Potato Center (CIP), Lima, Peru
4. Natural Resources Institute, University of Greenwich, Chatham, Kent, CT2 7LT, United Kingdom
5. Department of Agricultural Production, College of Agricultural and Environmental Sciences, Makerere University, Kampala, Uganda
6. Department of Biological Sciences, College of Natural Sciences, Makerere University, Kampala, Uganda
7. Mikocheni Agricultural Research Institute, Dar es Salaam, Tanzania
8. University of Helsinki, Finland