Affiliation: | ;Institute for Molecular Cell Biology, BioCentrum Amsterdam, University of Amsterdam, Kruislaan 316, 1098 SM Amsterdam, The Netherlands, ;Sainsbury Laboratory, John Innes Centre, Colney, Norwich NR4 7UH, UK, and ;Department of Genetics, Affiliated with the Flanders InterUniversity Institute of Biotechnology, University of Gent, Ledeganckstraat 35, B9000 Gent, Belgium |