Figure 2

Comparative sensitivity assays to predict the detection limit of Rathayibacter toxicus using multiplex endpoint PCR with and without internal controls. Lane 1–7 are tenfold serial dilutions of genomic DNA from 1 ng to 1 fg; lane 8 is non-template control (NTC; water). Qiagen multiplex kit was used for these sensitivity assays. E1. DNA from population RT-I only + No AIC; E2. DNA from population RT-II only + No AIC; E3. DNA from population RT-III only + No AIC; E4. DNA from population RT-I only + AIC-1; E5. DNA from population RT-II only + AIC-1; E6. DNA from population RT-III only + AIC-1; E7. DNA from population RT-I only + AIC-2 & HIC; E8. DNA from population RT-II only + AIC-2 & HIC; E9. DNA from population RT-III only + AIC-2 & HIC; E10. DNA from all three populations + No AIC; E11. DNA from all three populations + AIC-1; E12. DNA from all three populations + AIC-2 & HIC.