1. Department of Organisms and Ecosystems Research; National Institute of Biology; Večna pot 111 1000 Ljubljana Slovenia
2. INRA-Cirad-Montpellier SupAgro; UMR 385 BGPI, Cirad TA A-54K 34398 Montpellier France
3. Bayer CropScience; 16 rue Jean Marie Leclair - CS 90106, 69266 Lyon Cedex 09 France