• National Institute for Agricultural Research (INRA), Unit for Improvement, Genetics and Forestry Physiology (UR 0588), Orléans, France
• Institute of Plant Genetics and Biotechnology of the Slovak Academy of Sciences, Nitra, Slovakia
• Department of Experimental Plant Biology, Faculty of Science, Charles University, Praha, Czech Republic
• Institute of Scientific Instruments of the Czech Academy of Sciences, Brno, Czech Republic
• Department of Crop Sciences and Agroforestry, Faculty of Tropical AgriSciences, Czech University of Life Sciences, Praha, Czech Republic
• Department of Forest Ecology, Faculty of Forestry and Wood Science, Czech University of Life Sciences, Praha, Czech Republic