Figure 2From: Evolution of multiple phosphodiesterase isoforms in stickleback involved in cAMP signal transduction pathwayConserved synteny around the PDE1C locus (loci) in tetrapods and teleost fishes. Triangles indicate gene loci and their direction of transcription. Doubly conserved synteny, which was derived from the teleost-specific genome duplication [18, 19], is indicated by yellow shading and labeled "CS (conserved synteny)-1" and "CS-2." Orthologous/paralogous relationships among PDE1C genes are shown by solid magenta lines. The dashed lines indicate putative orthologous relationships predicted in the Ensembl genome database [40]. The solid yellow and green lines show phylogenetic relationships of neighboring "unknown" genes around stickleback PDE1Cb loci, which are estimated in the present study [see Additional file 1, Figure S1]. The PDE1Cx (Ensembl ID: ENSGACP00000001336) [see Additional file 1, Table S1] of the stickleback is located alone in a small contig (Scaffold 809; 12 kbp), and therefore has no synteny information.Back to article page