Additional file 7.
Figure S5. Phylogenetic tree of the Calyptogena clam symbionts including those of reported in Stewart et al. 2009 . 16S and 23S rRNA gene sequences of the symbionts reported in the present study and of those reported in Stewart et al. (2009)  were concatenated and used for phylogenetic tree reconstruction. Topology of the tree constructed using the maximum likelihood method is shown with bootstrap values (> 50%) obtained from the neighbor joining and maximum likelihood methods at each node. Accession numbers of the sequences are shown in the tree. Names and abbreviations of the symbionts are the same as those in Table 3 of the present study or those in . Abbreviations for generic names: C., Calyptogena; E., Ectenagena; V., Vesicomya. *Symbionts reported in Stewart et al. ; **symbionts reported in both Stewart et al.  and the present study.
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Kuwahara et al. BMC Evolutionary Biology 2011 11:285 doi:10.1186/1471-2148-11-285