Figure 1

Overview of the generation of the replacement recombination vectors pM1, pM2 and pM3. The plasmids pM2 and pm3 were mixed with standard rat feed for the feeding trials. Km^R; kanamycin-resistance (npt I); strep^R: streptomycin resistance; gfp: gfpuv-gene (enhanced GFP) with native promoter. Figures are not to scale.