Figure 2 Gene family comparisons. (a) Phylogenetic tree with the dynamic evolution of gene families. Green and red numbers under the branch represent the expanded or contracted gene families in each linage, respectively. Pie charts beside or on each branch of the tree show the proportion of expanded (green), contracted (red), and conserved (blue) gene families. The large pie chart at the right indicates the proportion of all families that change (orange), or conserve (blue) across lineages. The number at the tree root (19,617) denotes the total number of gene families predicted in MRCA (the most recent common ancestor). (b) and (c) KEGG pathway and GO enrichment of expanded gene families in node of 4 speceis. y-Axis indicates the pathway name or GO term. x-Axis indicates negative log 10 (q-value). The color bar indicates the enriched factor. The bubble size indicates the number of genes. (d) and (e) KEGG pathway and GO enrichment of expanded gene families.