Fig. 2

16S rRNA phylogenetic analysis showing the evolutionary relationship between A. baumannii NCTC 13423 and related type (^T) and non-type A. baumannii strains and Acinetobacter species. Moraxella catarrhalis was used as an outgroup. Genbank accession numbers of the aligned sequences are indicated between brackets. Sequence alignment was performed using MUSCLE [27], and a neighbour-joining algorithm using the Kimura 2-parameter distance model was used to construct a phylogenetic tree in MEGA (version 7) [28]. The rate variation among sites was modelled with a gamma distribution (shape parameter = 1). The optimal tree with the sum of branch lengths = 0.1583 is shown, and bootstrap support values above 60 % (1000 replicates) are indicated next to the branches