Table II. Organization of NBS-encoding genes in the four legume genomes.
| Genes and Loci | M. truncatula | Pigeon Pea | Common Bean | Soybean |
|---|---|---|---|---|
| No. of chromosome-anchored NBS loci and genes | 136 (543) | 69 (138) | 90 (325) | 187 (459) |
| No. of singleton loci (No. of NBS genes) | 64 (64) | 40 (40) | 53 (53) | 116 (116) |
| No. of clustered loci (No. of NBS genes) | 72 (479) | 29 (98) | 37 (272) | 71 (343) |
| Clustered NBS genes/singleton NBS genes | 7.48 | 2.45 | 5.13 | 2.96 |
| Average (median) No. of NBS genes in clusters | 6.65 (5) | 3.38 (3) | 7.35 (4) | 4.83 (3) |
| No. of clusters with 10 or more NBS genes | 18 | 0 | 7 | 6 |
| No. of NBS genes in the largest cluster | 23 (locus 41) | 9 (locus 28) | 51 (locus 90) | 25 (locus 156) |