1. Department of Molecular and Cellular Botany, Ruhr-Universität Bochum, 44780 Bochum, Germany
2. Bioinformatics and Genomics Programme, Centre for Genomic Regulation, 08003 Barcelona, Spain
3. US Department of Energy Joint Genome Institute, Walnut Creek, California 94598
4. Institute of Microbiology and Genetics, Department of Genetics of Eukaryotic Microorganisms, Georg-August University, Göttingen, 37077 Göttingen, Germany
5. Universitat Pompeu Fabra, 08002 Barcelona, Spain
6. Institució Catalana de Recerca i Estudis Avançats, 08010 Barcelona, Spain
7. Department of Plant and Microbial Biology, University of California Berkeley, California 94720