Table 1.

Rhodopsin distribution and habitats in cyanobacterial lineage.

Subclade	Rhodopsin-possessing											All
	Rhodopsin						Habitat				Genome	Genome
	XLR	NaR	XeR	CyHR	CyR	Total	Marine	Freshwater	Saline	NA*
A, C, F, G	0	0	0	0	0	0	0	0	0	0	0	56†
B	1	1	12	18	12	44	2	21	9‡	2	34	85
D	1	0	2	5	1	9	0	6	0	0	6	7
E	0	0	1	1	0	2	0	1	0	0	1	5
NA*	1	0	0	0	0	1	0	1	0	0	1	1
Total	3	1	15	24	13	56	2	29	9	2	42	154

^*NA = “not available”.

^†The genomes are included as follows: subclade A(13), C(36), F(4), and G(3).

^‡Eight of the nine genomes are derived from the strains isolated at the same site, with little genetic variation.