1. Laboratory of Entomology Wageningen University PO Box 16 6700 AA Wageningen the Netherlands
2. Plant–Microbe Interactions Department of Biology Utrecht University PO Box 800.56 3508 TB Utrecht the Netherlands
3. Laboratory of Genetics Wageningen University PO Box 16 6700 AA Wageningen the Netherlands
4. Bioinformatics Utrecht University PO Box 800.56 3508 TB Utrecht the Netherlands
5. Keygene N.V. PO Box 216 6700 AE Wageningen the Netherlands