Figure 5From: The GPCR repertoire in the demosponge Amphimedon queenslandica: insights into the GPCR system at the early divergence of animalsPhylogenetic tree showing relationship between Glutamate family GPCRs in sponge and human. The edges containing human Glutamate family GPCRs are highlighted in green, while the edges containing sponge Glutamate are highlighted in blue. Phylogenetic relationships between sponge Glutamate, the eumetazoans (Nematostella and Trichoplax) and sea-urchin genomes are provided in Additional file 6.Back to article page