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. 2008 Jun 28;9(4):403–423. doi: 10.1111/j.1364-3703.2008.00472.x

Figure 6.

Figure 6

Evidence for horizontal gene transfer of mgs1 among the plant‐associated mollicutes. (a) The tree of the Mgs1 protein sequences shows clustering of the plant‐associated mollicutes. (b) The tree of 16S rRNA gene nucleotide sequences shows that the phytoplasmas (BLTVA and AY‐WB) form a separate cluster from the mycoplasmas, mesoplasmas, spiroplasmas and ureaplasmas, consistent with published phylogenetic analyses and differences in codon usage and metabolic activities among the mollicutes, see also Fig. 2 (Razin et al., 1998). Alignments were generated with ClustalX 1.83 (Thompson et al., 1997). Gaps were excluded from the trees that were generated by the neighbour‐joining method (Saitou and Nei, 1987) of ClustalX. Bootstrap values of 1000 replicates are indicated at the branches. The trees were rooted with the B. subtilis sequences. The insect‐transmitted plant‐associated mollicutes (AY‐WB, BLTVA, S. kunkelii and S. citri) are highlighted in bold font.