Fig. 7.

Biogenic amine receptor subtypes identified in C. borealis and H. americanus transcriptome assemblies. Trees were generated as described in Fig. 6. Once again a 100 % overlap in transcript types was found between the two species, with one exception – a histamine receptor (Ha-HisR4) was identified in lobsters that had no corresponding sequence from the crab transcriptome. In the case of serotonin (5HT) and dopamine receptor types, existing crustacean sequence from two different decapod species (Panulirus interruptus and Procambarus clarkii) were used to help identify orthologs from C. borealis and H. americanus. These are also included in their respective trees as points of reference. Pan- represents P. interruptus while Pro- represent P. clarkii. A comprehensive list of amine receptor subtypes, including accession numbers, is provided in Table 3