Table 1. Summary of numerical data for metagenomic analyses of the four samples.
| Sample name | Source | No. of read | Total read length (bp) | No. of contig | Average contig length (bp) | Total lengh of contig (Mb) | No. of predicted gene a | Average gene length (bp) | No. of BLAST- hit gene b |
|---|---|---|---|---|---|---|---|---|---|
| Bulk soil | Bulk soil in the rice paddy field | 35,762,974 | 3,576,297,400 | 99,946 | 199 | 19.89 | 54,073 | 177.3 | 7,887 |
| Anode-associated soil | Soil associated with an anode of rice paddy-field sMFC | 44,532,578 | 4,453,257,800 | 81,997 | 191 | 15.66 | 79,799 | 170.2 | 10,987 |
| AM-anode biofilm | Anode biofilm in acetate-fed MFC | 38,511,356 | 3,851,135,600 | 45,459 | 1,314 | 59.73 | 91,548 | 560.8 | 35,567 |
| GM-anode biofilm | Anode biofilm in glucose-fed MFC | 45,231,880 | 4,523,188,000 | 25,572 | 2,682 | 68.58 | 79,070 | 728.1 | 35,716 |
a
A number of genes predicted in contigs by the MetaGeneAnnotator program.
b
A number of predicted genes showing similarity to sequences in the NCBR-NR database (e-value ≤ 1.0 × 10-5 in the BLASTP analysis).