Expression profile of the CHS gene family members as determined by TaqMan® RT-PCR. Total RNA from leaves of Glycine max cv. Williams infiltrated with MgCl2 (gray boxes) or the avirulent (black boxes) strains of Pseudomonas syringae pv. glycinea was isolated after eight hours of infection, reverse transcribed and subjected to real-time PCR. Relative amounts were calculated and normalized with respect to PEPC transcript levels (=100%). Data shown represents mean values obtained from three independent amplification reactions and the error bars indicate the S.E. (standard error) of the mean.