Figure 1.

Numbers and tissue presence of the annotated genes found in caecilian transcriptomes. Genes were pooled for the five sampled species-specific transcriptomes and annotated in the 51 vertebrate species available on the EggNOG database, and mapped onto a vertebrate phylogeny inferred from the NCBI’s taxids (using phyloT and ITOL). For each vertebrate taxon, the number of caecilian annotated genes is subdivided to show the number of caecilian tissue types in which those genes are expressed.