Department of Genome Analysis, GBF - German Research Center for Biotechnology, Mascheroder Weg 1, 38124 Braunschweig, Germany. hwm@gbf.de <hwm@gbf.de>|Department of Genome Analysis, GBF - German Research Center for Biotechnology, Mascheroder Weg 1, 38124 Braunschweig, Germany. hwm@gbf.de <hwm@gbf.de>|Department of Genome Analysis, GBF - German Research Center for Biotechnology, Mascheroder Weg 1, 38124 Braunschweig, Germany. hwm@gbf.de <hwm@gbf.de>