Figure 9.

Kinetics of the expression values of genes differentially expressed between central (C) and L1 AZs of the two X3177 apple biological replicates (H1 and H2) as determined by microarray analysis at three developmental stages (14, 17, and 21 DAP). The kinetics of expression values of selected genes involved in suberin biosynthesis, lignin biosynthesis, cell wall modification, ethylene response factor, and auxin transport are represented. The transcript levels were normalized with the lowess method. Intensity values were then subtracted from the background.