Maximum likelihood tree based on conserved flagellar proteins depicting the position of R. centenum flagellar systems among other flagellated bacteria. The tree is based on a concatenated alignment of 11 flagellar proteins (Flg) that are present in all primary and secondary flagellar systems . A blue "1" or "2" after the species name indicates primary and secondary flagella systems, respectively. Alpha I (alphaproteobacteria group I) and Alpha II (alphaproteobacteria group II) are boxed. The primary (polar) and secondary (lateral) flagella of R. centenum are in red.
Lu et al. BMC Genomics 2010 11:325 doi:10.1186/1471-2164-11-325