Figure 2.

CLUSTER image of 132 age-regulated ESTs. Each column represents one of seven time points: 3, 10, 15, 25, 30, 40, and 50 days. Except for 3 days (the control), each time point has two sets of data, which are shown side by side in columns. Each row represents the expression pattern of a single EST. Red indicates up-regulation in the experimental sample, and green represents down-regulation. Gray indicates missing data. Identities of some age-regulated ESTs are provided on the right side of the CLUSTER image, placed in the same order as their relative position in the cluster image. Each EST is labeled with its clone identification code followed by the gene name or the name of its homolog. ESTs with sequence error in this study are indicated by the symbol !. ESTs encoding an uncharacterized protein with homology to a known protein are marked by ˜. The ESTs marked by three asterisks (***) represent those coregulated with age and oxidative stress.