1. Biotechnology and genetic resource specialist, Office of Agriculture, Agency for International Development, Washington, DC, 20523
2. Director, International Program for Tropical Tree Crops, International Fund for Agricultural Research, Arlington, VA 22209
3. Scientific adviser, Consultative Group on International Agricultural Research, World Bank, Washington, DC 20433
4. National program leader for germplasm, U.S. Department of Agriculture, Beltsville, MD 20705