1. 1Department of General Microbiology, Institute of Microbiology and Genetics, Georg-August University Göttingen, Göttingen, Germany
2. 2INRA, UMR 1332 de Biologie du Fruit et Pathologie, Villenave d'Ornon, France
3. 3University of Bordeaux, UMR 1332 de Biologie du Fruit et Pathologie, Villenave d'Ornon, France
4. 4Centre for Genomic Regulation (CRG), The Barcelona Institute for Science and Technology, Barcelona, Spain
5. †Present address: S-Biomedic N.V., Beerse, Belgium.