Figure 3.

Expression pattern of ATG genes during leaf development. Data from a previous transcriptome analysis (on the fourth rosette leaf at 2-day (d) intervals from 4 to 30 d after emergence from Arabidopsis) were used [159]. The leaf lifespan was divided into two stages, growth-to-maturation (G-to-M) and maturation-to-senescence (M-to-S). Expression data are represented as a heatmap based on the log2FC change in Fragments Per Kilobase Million (FPKM) values compared to day 4 for each transcript. Next to the ATG genes, three SAG genes are also shown as representative markers for the onset of senescence.