Table I. Number of identified NBS-encoding genes in the four legume genomes.
| Domain Composition | Abbreviation | M. truncatula | Pigeon Pea | Common Bean | Soybean |
|---|---|---|---|---|---|
| TNL subclass | |||||
| TNL and homologs | 275 (48.1%) | 112 (38.7%) | 103 (30.5%) | 178 (38.3%) | |
| TIR-NBS-LRR | TNL | 121 | 78 | 76 | 124 |
| TIR-NBS | TN | 49 | 6 | 13 | 24 |
| NBSTIR-LRR | NTIRL | 44 | 15 | 12 | 17 |
| NBSTIR only | NTIR | 45 | 11 | 0 | 12 |
| Others | 16 | 2 | 2 | 1 | |
| nTNL subclass | |||||
| CNL and homologs | 279 (48.9%) | 167 (57.8%) | 224 (66.5%) | 269 (57.8%) | |
| CC-NBS-LRR | CNL | 94 | 63 | 128 | 109 |
| CC-NBS | CN | 16 | 7 | 9 | 8 |
| NBSCC-LRR | NCCL | 95 | 53 | 84 | 120 |
| NBSCC only | NCC | 63 | 43 | 2 | 30 |
| Others | 11 | 1 | 1 | 2 | |
| RNL and homologs | 17 (3%) | 10 (3.5%) | 10 (3%) | 18 (3.9%) | |
| RPW8-NBS-LRR | RNL | 8 | 4 | 5 | 9 |
| RPW8-NBS | RN | 0 | 0 | 0 | 1 |
| NBSRPW8-LRR | NRPW8L | 6 | 5 | 4 | 8 |
| NBSRPW8 only | NRPW8 | 3 | 1 | 1 | 0 |
| Others | 0 | 0 | 0 | 0 | |
| Ratio of nTNLs to TNLs | 1.08 | 1.58 | 2.27 | 1.61 | |
| Total No. | 571 | 289 | 337 | 465 |