Table 2.

Closest BLASTp hits for nirK cluster representative sequences at the genus level with the average BLASTp identity with standard errors and the range of percent identities for each genus.

Genus	Avg % ID	% ID Range
Achromobacter	81.5 ± 0.3	42.1 – 100
Afipia	83.4 ± 0.3	71.9 – 94.0
Alcaligenes	77.3 ± 0.4	67.1 – 86.1
Bradyrhizobium	82.6 ± 0.2	56.5 – 99.4
Chelativorans	81.1 ± 1.2	66.1 – 88.9
Maritimibacter	73.4 ± 2.2	68.9 – 75.8
Mesorhizobium	79.8 ± 0.2	62.1 – 100
Methylocystis	84.7 ± 1.2	80.6 – 90.4
Nitratireductor	82.8 ± 0.3	65.8 – 97.3
Nitrosomonas	70.3	n.d.
Ochrobactrum	92.8 ± 0.4	69.1 – 97.7
Phaeobacter	71.9	n.d.
Pseudomonas	87.6 ± 2.6	79.0 – 97.7
Rhizobium	85.6 ± 2.1	75.3 – 95.7
Rhodopseudomonas	80.6 ± 0.1	49.5 – 92.2
Roseovarius	67.1	n.d.
Shewanella	73.2 ± 1.4	68.2 – 76.3
Sinorhizobium	88.4 ± 1.4	70.4 – 99.4
Starkeya	87.2 ± 3.2	68.4 – 93.6
Uncultured bacteria	82.5 ± 1.0	52.9 – 98.8