Table 1.
Genomic locations of nitrogen fixation gene clusters in strains tested in the present study.
| Strain | Type of symbiosis region | Location of the nif–cluster | nod gene | Accession number |
|---|---|---|---|---|
| Bradyrhizobium sp. DOA1 | symbiosis island | symbiosis island | + | JXJM01000000 |
| Bradyrhizobium diazoefficiens USDA110 | symbiosis island | symbiosis island | + | BA000040 |
| Bradyrhizobium japonicum USDA6 | symbiosis island | symbiosis island | + | AP012206 |
| Bradyrhizobium japonicum E109 | symbiosis island | symbiosis island | + | CP010313 |
| Bradyrhizobium japonicum SEMIA 5079 | symbiosis island | symbiosis island | + | CP007569 |
| Bradyrhizobium elkanii USDA76 | symbiosis island | symbiosis island | + | KB900701, KB900702 |
| Bradyrhizobium sp. WSM471 | symbiosis island | symbiosis island | + | CM001442 |
| Bradyrhizobium sp. WSM1253 | symbiosis island | symbiosis island | + | JH600072, JH600073 |
| Bradyrhizobium genosp. SA-4 str. CB756 | symbiosis island | symbiosis island | + | AXBC00000000 |
| Bradyrhizobium sp. WSM1417 | symbiosis island | symbiosis island | + | AZXU00000000 |
| Bradyrhizobium sp. SUTN9-2 | symbiosis island | symbiosis island | + | LAXE00000000 |
| Bradyrhizobium liaoningense CCBAU 83689 | unknowna | unknowna | + | AJQD00000000 |
| Bradyrhizobium yuanmingense CCBAU 35157 | unknowna | unknowna | + | AJQL00000000 |
| Bradyrhizobium sp. DOA9 | symbiosis plasmid | non-symbiotic loci symbiosis plasmid | + | DF820425, DF820426 |
| Bradyrhizobium sp. MAFF107635 | — | non-symbiotic loci | − | JXDL01000000 |
| Bradyrhizobium sp. S23321 | — | non-symbiotic loci | − | AP012279 |
| Bradyrhizobium japonicum 22 | — | non-symbiotic loci | − | AXVG00000000 |
| Bradyrhizobium oligotrophicum S58 | — | non-symbiotic loci | − | AP012603 |
| Bradyrhizobium sp. BTAi1 | — | non-symbiotic loci | − | CP000494, CP000495 |
| Bradyrhizobium sp. ORS278 | — | non-symbiotic loci | − | CU234118 |
a
Information was not obtained because the nif–cluster was located on a small contig.