Figure 2

Hierarchical organization of sequence reads. Plot of modularity and dendrogram for the graph derived from 136,265 sequence reads of P. sativum. Each leaf of the tree represents a single sequence read (due to their high number it is not possible to distinguish individual reads). This tree corresponds to the largest connected component, which makes up 42% of all sequencing data. For each division of the hierarchical tree, the resulting modularity is shown above the dendrogram. The vertical red line represents the best division with maximal modularity, producing 230 subclusters. Repeats identified by the similarity search are shown on the colored vertical side bar, reads with no hits are left blank.