Fig. 2From: Use of Plasmid pVMG to Make Transcriptional ß-Glucuronidase Reporter Gene Fusions in the Rhizobium Genome for Monitoring the Expression of Rhizobial Genes In VivoTesting the pVMG method. a. pVMG method overview. b. Gel electrophoresis of PCR-amplified 720-bp DNA. 720-bp PCR-bands were specific for S. meliloti reporter fusion strains 8530 sinI::VMG495, MG32 sinI::VMG495, and 1021 sinI::VMG495. DNA marker: The Invitrogen TrackIt 1 Kb Pluse DNA LadderBack to article page