Bioinformatics Group, Max-Planck Institute for Molecular Plant Physiology, 14476 Potsdam, Germany. girbig@mpimp-golm.mpg.de|Bioinformatics Group, Max-Planck Institute for Molecular Plant Physiology, 14476 Potsdam, Germany. girbig@mpimp-golm.mpg.de|Bioinformatics Group, Max-Planck Institute for Molecular Plant Physiology, 14476 Potsdam, Germany. girbig@mpimp-golm.mpg.de