Figure 8From: Positive Darwinian selection in the singularly large taste receptor gene family of an ‘ancient’ fish, Latimeria chalumnaeEvolutionary dynamic of vertebrate t2r and v1r gene repertoires. Species tree with the respective T2R (blue circle) and V1R/ORA (black circle) repertoires. Circle area is proportional to the size of the gene family. Values for Latimeria T2R and V1R families, this study; t2r gene family size for other species was taken from [11], teleost ORA and frog V1R family size from [10] and mouse V1R family size from [25].Back to article page