Patterns of abundance, chromosomal localization, and domain organization among c-di-GMP-metabolizing genes revealed by comparative genomics of five alphaproteobacterial orders

Table 1 Genomes, genera, and species/strains available for analyses

Order	Closed genomes	One unambiguously identified ori	C-di-GMP-metabolizing domains	By genera^a	By species or strains
Rhodospirillales	132	75	EAL	42	62
			GGDEF	47	71
			GGDEF_EAL	48	74
			HD-GYP	23	35
Sphingomonadales	27	17	EAL	22	145
			GGDEF	25	172
			GGDEF_EAL	26	174
			HD-GYP	8	18
Rhodobacterales	187	69	EAL	123	308
			GGDEF	132	333
			GGDEF_EAL	121	278
			HD-GYP	11	16
Rhizobiales	424	133	EAL	77	227
			GGDEF	90	257
			GGDEF_EAL	93	266
			HD-GYP	38	105
Caulobacterales	44	8	EAL	5	20
			GGDEF	5	28
			GGDEF_EAL	5	28
			HD-GYP	1	1

^a Genera numbers include any Sphingomonadales sp., Rhodobacteraceae sp., Rhizobiales sp., and Caulobacteraceae sp. designations as one each

ISSN: 1471-2164