Applied Bioinformatics, Plant Research International, PO Box 16, 6700AA Wageningen, The Netherlands. Mark.Fiers@wur.nl|Applied Bioinformatics, Plant Research International, PO Box 16, 6700AA Wageningen, The Netherlands. Mark.Fiers@wur.nl|Applied Bioinformatics, Plant Research International, PO Box 16, 6700AA Wageningen, The Netherlands. Mark.Fiers@wur.nl|Applied Bioinformatics, Plant Research International, PO Box 16, 6700AA Wageningen, The Netherlands. Mark.Fiers@wur.nl|Applied Bioinformatics, Plant Research International, PO Box 16, 6700AA Wageningen, The Netherlands. Mark.Fiers@wur.nl