Fig. 9

Expression and molecular phylogeny of selected leech TRP genes a. Expression levels in four cell types and in the remainder of the ganglion of the eight Hirudo TRP channel transcripts in the TRP V, A, and M families, which are implicated in sensory transduction in other animals. Error bars denote the standard error of the mean; TPM = Transcripts Per Kilobase Million. b. A maximum-likelihood phylogeny of the Helobdella orthologs (red) of all 16 TRP channel transcripts found in the Hirudo transcriptome, with family groupings labeled at right. Asterisks denote the families implicated in sensory reception in other organisms. Support values are shown at each node; scale bar = the average number of substitutions per site along each branch. Leech = Helobdella robusta or Hirudo verbana (for TrpA1), Mouse = Mus musculus, Fly = Drosophila melanogaster, Moth = Manduca sexta