1. Agricultural Research Service National Laboratory for Genetic Resources Preservation United States Department of Agriculture Fort Collins CO USA
2. International Center for Tropical Agriculture (CIAT) Cali Colombia
3. Department of Biology Saint Louis University St. Louis MO USA
4. Natural Resource Ecology Laboratory Colorado State University Fort Collins CO USA
5. Florida Museum of Natural History University of Florida Gainesville FL USA
6. World Vegetable Center Shanhua Taiwan
7. Bioversity International Lima Peru
8. Agricultural Research Service National Clonal Germplasm Repository United States Department of Agriculture Parlier CA USA
9. Agricultural Research Service Plant Genetic Resources Conservation Unit United States Department of Agriculture Griffin GA USA
10. Agricultural Research Service Plant Genetic Resources Unit United States Department of Agriculture Geneva NY USA
11. Agricultural Research Service Plant Introduction Research Unit United States Department of Agriculture Iowa State University Ames IA USA
12. Southwest Center and Institute of the Environment University of Arizona Tucson AZ USA