Fig. 4

Phylogeny of flag-3 loci compared to house-keeping protein tree. ML phylogenies were constructed on the basis of the concatenated alignments of 45 SCOs conserved among the flag-3 loci (left) and the house-keeping proteins GyrB, InfB, RecA and RpoB (right). The final alignments comprised of 10,357 and 3086 amino acids, respectively. The best-fit evolutionary model LG + F + I + G4 was used for construction of both trees and bootstrap support (n = 1000 replicates) values are shown. The taxa names are coloured according to their family designation, while the flag-3a and flag-3b loci branches are coloured in red and blue, respectively in the flag-3 SCO phylogeny