1. Institute of Biodiversity and Ecosystem Research Bulgarian Academy of Sciences Sofia Bulgaria
2. Centre for Agricultural Research, Plant Protection Institute Hungarian Academy of Sciences Budapest Hungary
3. Maize Research Institute Agricultural Academy Knezha Bulgaria
4. Department of Life Sciences and Systems Biology University of Torino Torino Italy
5. Centro Studi Naturalistici Valconca San Giovanni in Marignano (RN) Italy
6. Gentaur Bulgaria Sofia Bulgaria