Figure 1.

Plantago vascular ESTs were divided into different groups. A, The obtained sequences were assigned either to one of 10 functional groups or to one of three groups standing for functionally uncharacterized proteins, for novel genes, or for a single mRNA with homology to sequences of viral origin (other sequences). The percentage of ESTs per group (black) and the percentage of independent mRNAs per group (= contigs plus singlets; red) are indicated. B, The EST-to-mRNA ratio was determined for 12 of the 13 groups shown in A. This ratio is a measure for the average strength of expression of the genes in a given group (higher bar = stronger average expression). The ratio is not shown for the other sequences group, which is represented by a single mRNA resulting from 26 ESTs.