Table 1

Features of the bacteria considered in this paper
Strain	RefSeq acession no.	Source	T_opt	Photolyase	P_opt	Orthologs

Photobacterium profundum SS9	NC_006370	Sulu Sea	15°C	A	28 MPa	Vs
Vibrio fischeri ES114	NC_006840	Squid symbiont	30°C	P	ND	3028
Vibrio parahaemolyticus RIMD	NC_004603	Osaka	20–43°C	P	0.1 MPa	3469
Vibrio vulnificus YJ016	NC_005139	Taiwan	30–40°C	P	ND	3362

Shewanella benthica KT99	-	Tonga-Kermadec Trench	4–15°C	A	50 MPa	Vs
Shewanella baltica OS155	NC_009052	Baltic Sea	4°C	P	10 MPa	3167
Shewanella oneidensis MR-1	NC_004347	Oneida lake	30°C	P	0.1 MPa	2651
Shewanella frigidimarina NCIMB 400	NC_008345	North Sea	20–22°C	P	0.1 MPa	2909

Columns report respectively: strain, NCBI accession number, isolation site, optimum growth temperature (T_opt), presence (P) or absence (A) of the deoxyribodipyrimidine photo-lyase gene, optimum growth pressure (ND = Not Determined) and number of orthologous genes identified for each comparison. The omission of the ORFs encoding light-activated photolyase genes from the SS9 and KT99 genomes is due to the absence of sunlight in the deep sea.
Campanaro et al. BMC Evolutionary Biology 2008 8:313 doi:10.1186/1471-2148-8-313