Fig. 2From: Comparative transcriptome analysis of a lowly virulent strain of Erwinia amylovora in shoots of two apple cultivars – susceptible and resistant to fire blightThe Principal Component Analysis (PCA) of the log2 - transformed normalized expression values highlighted the variability between the samples. FR – Free Redstar, I – Idared, 24 h – 24 h after inoculation, 6 days – 6 days after inoculationBack to article page