1. Laboratory of Nematology, Wageningen University, NL-6708 PB Wageningen, The Netherlands
2. Theoretical Biology and Bioinformatics, Utrecht University, 3584 CH Utrecht, The Netherlands
3. Bioinformatics Group, Wageningen University, NL-6708 PB Wageningen, The Netherlands
4. Institute for Clinical Molecular Biology, University of Kiel, 24098 Kiel, Germany
5. Competence Centre for Genomic Analysis (CCGA) Kiel, University of Kiel, 24098 Kiel, Germany
6. Zoological Institute, University of Kiel, 24098 Kiel, Germany
7. Max Planck Institute for Evolutionary Biology, 24306 Ploen, Germany