1. Department of Genetic Resources for Vegetables, Medicinal and Special Plants; Centre of the Region Haná for Biotechnological and Agricultural Research; Crop Research Institute; Olomouc Czech Republic
2. Department of Botany; Faculty of Science; Palacký University Olomouc; Olomouc Czech Republic
3. Leibnitz Institute of Plant Genetics and Crop Research (IPK); Gatersleben Germany
4. Institute of Biology and Environmental Sciences; Carl von Ossietzky University Oldenburg; Oldenburg Germany