Figure 2From: Conservation and divergence of chemical defense system in the tunicate Oikopleura dioica revealed by genome wide response to two xenobioticsPhylogenetic comparison of Oikopleura bHLH-PAS-domain proteins with representative proteins from other organisms. The three O. dioica proteins (in blue) are indicated by accession numbers (see Additional file 2). See figure 1 legend for species abbreviations.Back to article page