Table 2: dsrA 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. (% identity; % similarity) DNA based identity (%)
S2
cDNA
S2
DNA
R6
DNA
Deltaproteobacteria
Syntrophobacterales DC307 1 Phylotype 27, BAE73226 (84, 91) 83
DC313 1 3 Clone 39b_40, CAJ47266 (80, 86) 79
DC314 1 Clone ALRdec-18, BAF56349 (80, 92) 78
DC315, DD455, DD489 10 8 8 Desulfobacca acetoxidans, AEB9473 (72, 83) 70
DC328, DD585 2 4 Clone ALRdec-18, BAF56349 (86, 93) 79
DC430, DD466, DD501 2 5 2 Desulfobacca acetoxidans, AEB9473 (63, 74) 72
DD451, DD591 1 2 Desulfobacca acetoxidans, AEB9473 (69, 81) 74
DD575, DD599 1 1 Clone a73, AAK61938 (82, 90) 83
DD589 2 Clone 39b_40, CAJ47266 (77, 85) 77
Desulfobacterales DC418, DD457 3 1 Clone ALRdec-24, AB271553 (91, 94) 81
Firmicutes DC426, DD583 1 3 Desulfotomaculum sp. For-1, AFI98563 (84, 88) 77
DD479 1 Desulfotomaculum sp. For-1, AFI98563 (81, 85) 72
DD484 1 Desulfotomaculum sp. For-1, AFI98563 (83, 92) 82