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The number of taxa for each taxonomic rank after re-annotation.
| Green genes | SILVA | RDP | NCBI | |
| Superkingdom | 1 | 1 | 1 | 1 |
| Phylum | 40 | 62 | 49 | 40 |
| Class | 72 | 85 | 73 | 72 |
| Order | 163 | 210 | 173 | 164 |
| Family | 355 | 495 | 380 | 358 |
| Genus | 1,030 | 3,239 | 2,154 | 1,206 |
| Species | 570 | 15,335 | 0 | 3,029 |
| Number of sequences | 1,191,315 | 1,779,305 | 1,559,121 | 77,869 |
