Synteny of the lateral flagellar system across representative Rhizobiales genomes and closest relatives outside Rhizobiales. (a) Synteny of the lateral flagellar systems of Bradyrhizobium, Rhodopseudomonas and Tardiphaga type strain species genomes. (b) Synteny of the lateral flagellar systems of diverging Rhizobiales genomes belonging to Pleomorphomonas, Cohaesibacter, Methylobacterium, Microvirga, Chelatococcus, Bosea, Methylocella and Methyloferula species. (c) Synteny of lateral flagellar systems of genomes belonging to Ochrobactrum, Mesorhizobium, Hoeflea, Sinorhizobium, Agrobacterium and Rhizobium species. (d) Synteny of the lateral flagellar systems of closest relative genomes outside Rhizobiales belonging to Labrenzia, Pannonibacter and Polymorphum species of the Rhodobacteraceae family. White arrows indicate hypothetical or unknown proteins or proteins with no involvement in flagellar biosynthesis or regulation. Species name, genome NCBI accs. no. and coordinates of the regions shown are specified under the syntenic representation of each genome.