A PHYSICAL MAP OF THE GENOME OF ETHANOL FERMENTATIVE BACTERIUM ZYMOMONAS-MOBILIS ZM4 AND LOCALIZATION OF GENES ON THE MAP

A physical map of the Zymomonas mobilis ZM4 genome has been constructe d from the results of reciprocal Southern hybridization with PmeI, Pac I, and NotI-digested genomic DNA fragments and linking cosmid clones. Restriction enzyme-digested Z. mobilis ZM4 genome was electrophoresed with phage lambda DNA concatemers as a size standard in a Bio-Rad CHEF -DRII pulsed-field gel electrophoresis (PFGE) system. The restriction enzyme PmeI generated 15 fragments (3-625 kb), and PacI produced 19 fr agments (7-525 kb). Each size of restriction fragment was calculated b y comparison to the size of phage lambda DNA concatemers, and the geno me size of Z. mobilis ZM4 was estimated to be 2085.5 kb. The 19 known genes and three rrn operons were localized on the map. (C) 1998 Elsevi er Science B.V.