Figure 3
Expression profiles of the 3,487 full-length wheat cDNA genes in 28 tissues or treatments and their Ka/Ks values. Relative gene expression is indicated by color intensity, which depends upon the number of EST constituents. The contigs orthologous to the 3,487 full-length cDNAs were selected from the wheat cDNA libraries constructed by the 28 tissues or treatments. Similarities of gene expression patterns among cDNAs and tissues or treatments were estimated using Pearson's correlation coefficient. Hierarchical clustering [25] was applied in order to compare EST expression profiles among the 28 tissues and treatments. Color scale ranges from 0 members to 414 members in EST contstituents. The calculated Ka/Ks values for the wheat and rice homologues are plotted above the expression profile for each gene. For abbreviations of tissues and treatments, see Table 2.