AM evolution. Panel A. Matrix of phylogenetic distribution of AM genes in all taxa. Each row represents the color coded ratio between ortholog number for individual AM genes and species analyzed in a given taxon, according to the colour bar shown above the matrix; the columns represent the taxa. Panel B. Evolutionary accretion of AM: number of AM genes appeared in the genomes during evolution. Panel C. Evolutionary rate of AM proteins: the X-axis represents the distribution classes of evolutionary rates, indicated as amino acid substitution for 100 amino acids per year as shown in the caption to the right. The Y-axis represents the number of proteins in each class of evolutionary rate.