1. The Jacob Blaustein Institutes for Desert Research; Ben-Gurion University of the Negev; 84990 Midreshet Ben-Gurion Israel
2. Weizmann Institute of Science; Rehovot 76100 Israel
3. Max Planck Institute of Molecular Plant Physiology; Central Metabolism Group; 14476 Potsdam-Golm Germany
4. Consiglio per la Ricerca e la Sperimentazione in Agricoltura; Research Center for Fruit Science; Via di Fioranello 52, 00134 Rome Italy
5. Faculty of Agriculture; The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture at the Hebrew University of Jerusalem; Rehovot 76100 Israel
6. Max Planck Institute of Molecular Plant Physiology; Systems Biology and Mathematical Modeling Group; 14476 Potsdam-Golm Germany