Applied Bioinformatics, Plant Research International, Wageningen, The Netherlands. sauloalves.aflitos@wur.nl.|Laboratory of Genetics, Wageningen University, Wageningen, The Netherlands. severing@mpipz.mpg.de.|Applied Bioinformatics, Plant Research International, Wageningen, The Netherlands. gabino.sanchezperez@wur.nl.|Applied Bioinformatics, Plant Research International, Wageningen, The Netherlands. sander.peters@wur.nl.|Laboratory of Genetics, Wageningen University, Wageningen, The Netherlands. hans.deJong@wur.nl.|Bioinformatics Group, Department of Plant Sciences, Wageningen University, Wageningen, The Netherlands. dick.deridder@wur.nl.