Fig. 3

Phylogenomics analysis. The species phylogeny is based on maximum-likelihood analyses of a concatenated alignment of 172 widespread, single-copy orthologous genes. The two different P. vulgaris accessions used in this phylogeny are colored differently. Bars represent the total number of genes for each species (scale on the top) and are divided to indicate different types of phylogenetic profiles: green, widespread proteins which are found in at least 12 of the 14 species; grey, widespread but legume-specific proteins which are found in at least four of the six legumes species; light-orange, genes without a clear phylogenetic profile; brown, species-specific genes with no (detectable) homologs in other species. The thin blue line under each bar represents the percentage of P. vulgaris G19833 genes which have homologs in a given species. Conversely, the thin orange line represents the percentage of P. vulgaris BAT93 genes which have homologs in a given species