Additional file 2: of Synchronous birth is a dominant pattern in receptor-ligand evolution

Part 1: List of Databases used to construct the receptor/ligand interaction Database. Part 2: Characteristics of the components of the MCA. Part 3: Explanation of the statistical model. Part 4 Organisms of the branches of the overall phylogenetic trees + organisms implemented by BLAST. Part 5: Supplementary discussion on the appearance times of ligands and receptors. Part 6: Results of the random statistical model for the different combinations used. Part 7: Explanation of the methodology to match the bases Ensembl and Ensembl metazoa. Part 8: Number of receptors according to their number of ligands. Part 9: List of ligands and receptors in our database. (ODT 46 kb)