Table 1: sqr sequences identified in the redoxcline of the Cariaco Basin water column.

Phylogenetic affiliation Representative clone No. of clones in library Closest relative based on amino acid sequence, Accession No. (amino acid % identity, % similarity to the closest relative) DNA based identity (%)
S2
cDNA
S2
DNA
R6
DNA
Proteobacteria
Alphaproteobacteria QD713 1 Bradyrhizobium japonicum, NP_772414 (86, 89) 83
Epsilonproteobacteria QC611, QD745 11 24 Sulfurovum sp. NBC37-1, YP_001357509 (86, 91) 85
QD713 3 Sulfurovum sp. NBC37-1, YP_001357509 (92, 93) 83
QD721 16 Sulfurimonas autotrophica, YP_003892602 (87, 90) 80
QD727 3 Arcobacter nitrofigilis, YP_003654976 (74, 73) 72
Gammaproteobacteria QC3, QD183 16 27 Methylomicrobium alcaliphilum 20Z YP_004918767(74, 81) 71
QD773 1 Thiorhodospira sibirica, ZP_08920766 (63, 79) 70
Chlorobi QC703 1 Chlorobium tepidum, NP_661023 (76, 72) 68