1. Zentrum für Genomforschung, Universität Bielefeld, D-33615 Bielefeld, Germany1
2. Lehrstuhl für Genetik, Universität Bielefeld, D-33615 Bielefeld, Germany2
3. Plant Research International, 6700AA Wageningen, The Netherlands3
4. Biologische Bundesanstalt für Land-und Forstwirtschaft, D-38104 Braunschweig, Germany4
5. School for Biological Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK5
6. NERC Institute of Virology and Environmental Microbiology, Oxford OX1 3SR, UK6
7. Department of Biology, University of Idaho, Moscow, ID 83844, USA7
8. Cardiff School of Biosciences, University of Wales, Cardiff CF10 3TL, UK8
9. Institute of Biochemistry and Biophysics, Polish Academy of Sciences, 02-106 Warsaw, Poland9
10. Department of Chemical and Environmental Sciences, University of Limerick, Limerick, Ireland10
11. Robert Koch-Institut, Bereich Wernigerode, D-38855 Wernigerode, Germany11
12. Max-Planck-Institut für Molekulare Genetik, Dahlem, D-14195 Berlin, Germany12