Richard Cogdell1, Győző Garab2. 1. Institute of Molecular Cell and Systems Biology, University of Glasgow, Glasgow, UK. richard.cogdell@glasgow.ac.uk. 2. Institute of Plant Biology, Biological Research Center, Hungarian Academy of Sciences, P.O. Box 521, 6701, Szeged, Hungary. garab.gyozo@brc.mta.hu.