Figure 4.

The function of old “prokaryotic” proteins in Arabidopsis (blue) and Oryza sativa (red) showing the difference in the magnitude of proteins involved in various activities in the two plant species. The numbers represent the percentage of old “prokaryotic” proteins involved in various activities in the two plant species. It is interesting to note that the overall trend for the function in the two plant species remains similar. The functional annotations were obtained using the gene ontology annotation for both Arabidopsis and Oryza sativa.