Figure 4

Expression patterns of physically clustered differentially expressed genes. For each trait, a subset of all the differentially expressed genes was located within a 10 Megabase (Mb) window centered on the physical location of the trait of interest in the apple genome. For powdery mildew resistance, a 1.6 Mb expanded window shows details, including transcript identifier numbers. Differentially expressed genes correlating with powdery mildew and woolly apple aphid resistance included some having higher expression (positive correlation) and some having lower expression (negative correlation) in resistant trees. Similarly, differentially expressed genes correlating with gene expression markers included some having higher expression (positive correlation) and some having lower expression (negative correlation) in trees where the gene expression marker gene expression level was high. Chr, chromosome.