TABLE 1.

Overall 16S rRNA sequence similarities for the UWC8 and UWC36 endosymbionts and affiliated bacteria

Strain	% Similarity to:
	W. pipientis	Wolbachia sp.	E. canis	C. ruminantium	E. equi	N. helminthoeca	R. sibirica	R. australis	R. typhi	O. tsutsugamushi	C. caryophila	UWC36 endosymbiont
Wolbachia pipientis
Wolbachia sp.	99.2
Ehrlichia canis	86.4	86.1
Cowdria ruminantium	86.8	86.5	96.3
Ehrlichia equi	87.2	87.0	91.8	92.0
Neorickettsia helminthoeca	84.8	84.2	84.9	85.2	85.5
Rickettsia sibirica	83.8	83.4	82.9	83.9	83.7	83.8
Rickettsia australis	83.7	83.1	82.6	83.6	83.4	83.1	98.8
Rickettsia typhi	83.9	83.5	82.6	83.3	83.9	83.4	98.4	98.1
Orientia tsutsugamushi	82.4	81.8	82.3	83.4	83.0	82.1	90.3	89.8	90.2
Caedibacter caryophila	82.2	81.4	81.2	82.6	82.3	81.6	84.5	84.8	84.4	84.3
UWC36 endosymbiont	83.4	82.8	82.7	84.7	83.7	81.7	85.5	85.6	85.5	83.4	84.5
UWC8 endosymbiont	83.3	82.9	82.9	84.4	83.9	81.6	85.4	85.2	85.4	83.0	83.9	99.6