Fig. 3

Phylogenetic tree and gene orthology of 16 lepidopteran insect genomes. The maximum-likelihood phylogenetic tree was constructed with 1000 bootstrap replicates. The blue node indicates the correction point, while light blue indicates the 95% confidence interval. The number adjacent to the node represents the time of divergence in million years ago. The numbers on the branch represent expansions (red) or contractions (blue) of the gene families.