1. Dep. of Botany, Faculty of Science; Palacký Univ. in Olomouc; 78371 Olomouc Czech Republic
2. Crop Research Institute; Centre of the Region Hana for Biotechnological and Agricultural Research; Šlechtitelů 29 78371 Olomouc Czech Republic
3. USDA-ARS; National Laboratory for Genetic Resources Preservation; 1111 South Mason St. Fort Collins CO 80521 USA
4. International Center for Tropical Agriculture (CIAT); Km 17, Recta Cali-Palmira, Apartado Aéreo 6713 763537 Cali Colombia
5. Departments of Horticulture and of Ecology, Evolution and Organismal Biology; Iowa State University; Ames IA 50011 USA
6. USDA-ARS; Washington State University; Pullman WA 99164-6402 USA
7. Natural Resource Ecology Laboratory; Colorado State Univ.; Fort Collins CO 80524-1499 USA
8. Grupo de investigación en Evolución, Ecología y Conservación EECO, Programa de Biología; Facultad de Ciencias Básicas y Tecnologías; Universidad del Quindío; Armenia Colombia