Figure 6From: Common origin of plasmid encoded alpha-hemolysin genes in Escherichia coliRelative quantification of the hlyA gene transcription in E. coli strains encoding plasmid and chromosomally inherited α- hly determinants. Strains and plasmids as well as plasmid groups are listed in Table 1. Means and standard deviations from two separate experiments performed in duplicate are shown.Back to article page