FYI (pdf) http://www.plosone.org/article/fetchObjectAttachment.action?uri=info%3Adoi%2F10.1371%2Fjournal.pone.0010910&representation=PDF regards Bram -- ========================================================= ir. Bram Slabbinck, PhD Bioinformatics & Systems Biology VIB Department of Plant Systems Biology, Ghent University Technologiepark 927, 9052 Gent, BELGIUM Tel:+32 (0)9 33 13 822 Fax:+32 (0)9 33 13 809 Email: Bram.Slabbinck@psb.ugent.be WWW: http://bioinformatics.psb.ugent.be =========================================================