Table 2.

General genomic properties of representative free-living bacteria and insect symbionts

	Chromosome size, bp	G + C, %	No. of CDS	Coding density%	Avg. CDS length	Ref.
α-proteobacteria
Rickettsia belli	1,522,076	31.6	1,429	85.2	908	[78]
Wolbachia pipientis	1,267,782	35.2	1,195	80.2	851	[79]
Hodgkinia cicadicola	143,795	58.4	169	91.3	777	[45]
Β-proteobacteria
Profftella armatur	459,399	24.2	366	88.0	1,104	[80]
Zinderia insecticola	208,564	13.5	202	89.7	926	[23]
Tremblaya princeps	138,927	58.8	121	66.1	759	[14]
Nasuia deltocephalinicola	112,091	17.1	137	91.9	752	[24]
γ-proteobacteria
Escherichia coli	4,641,652	50.8	4,140	85.1	954	[81]
Sodalis glossinidius	4,171,146	54.7	2,432	50.9	873	[82]
Arsenophonus nasoniae	3,567,128*	37.4	3,332	-	-	[83]
Hamiltonella defensa	2,110,331*	40.1	2,094	80.4	810	[19]
	1,843,969	40.3	1,806	76.8	784	This study
Serratia symbiotica	1,762,765	29.2	672	38.8	1,019	[20]
Blochmannia pennsylvanicus	791,654	29.6	610	76.7	995	[84]
Blochmannia floridanus	705,557	27.4	583	83.2	1,007	[85]
Baumannia cicadellinicola	686,194	33.2	595	85.5	986	[21]
Buchnera aphidicola	640,681	26.3	564	87.0	988	[8]
	416,380	20.2	357	85.1	992	[9]
Portiera aleyrodidarum	357,461	26.1	272	67.7	890	This study
	357,472	26.1	246	67.7	984	[13]
	358,242	26.2	256	67.6	945	[11]
	280,663	24.7	269	94.3	984	[12]
Carsonella ruddii	159,662	16.6	182	94.1	826	[44]
Bacteroidetes
Uzinura diaspidicola	263,431	30.2	227	86.5	1,004	[46]
Sulcia muelleri	245,530	22.4	227	92.1	996	[86]

*Uncompleted genome.