1. Departamento de Biologia Vegetal, Instituto de Biologia, CP 6109; Universidade Estadual de Campinas; 13083-970 Campinas SP Brazil
2. Department of Plant Systems Biology, VIB; Technologiepark 927 B-9052 Gent Belgium
3. Department of Plant Biotechnology and Bioinformatics; Ghent University; Technologiepark 927 B-9052 Gent Belgium
4. Laboratório Nacional de Biociências, CNPEM/ABTLuS; Campinas Brazil