Table 2.
Nitrogen Assimilation–Related Genes Identified in the Mamiellales Genomes.
| Gene, Gene Symbol | RCC299 | CCMP1545 | Otau | Oluc |
| Nitrate reductase, NIA | 1 | 1 | 1 | 1 |
| Nitrite reductase, NII | 1 | 1 | 1 | 1 |
| Glutamine synthetase catalytic domain, GLN | 2 | 2 | 1 | 1 |
| Glutamate synthase (Ferredonin-dependent), GLU | 1 | 1 | 1 | 1 |
| Glutamate synthase (NADH dependent), GLT | 1 | 1 | NF | NF |
| Glutamate dehydrogenase, GDH | NF | NF | NF | NF |
| Asparagine synthetase, ASN | 3 | 3 | 2 | 2 |
| Aspartate aminotransferase, ASP | 3 | 3 | 1 | 1 |
| Molybdate transporter, MoT1 | 1 | NF | 1 | 1 |
| Molybdenum biosynthesis CF, CNX1E | 1 | 1 | 1 | 1 |
| Molybdenum biosynthesis CF, CNX1G | 1 | 1 | NF | 1 |
| Molybdenum biosynthesis CF, CNX2 | 1 | 1 | 1 | 1 |
| Molybdenum biosynthesis CF, CNX3 | 1 | 1 | 1 | 1 |
| Molybdenum biosynthesis CF, CNX5 | 1 | 1 | 1 | 1 |
| Molybdenum biosynthesis CF, CNX6 | 1 | 2 | 1 | 1 |
| Molybdenum biosynthesis CF, CNX7 | 1 | 1 | 1 | 1 |
| Nitrogen-sensing protein PII homologue | 1 | 1 | NF | NF |
NOTE.—CF, cofactor. NF indicates not found by BlastP or TBlastN; Otau, O. tauri; Oluc, O. lucimarinus.