15. Linkage data for chrom. 10.
| F1 genotype | 0 | 1 | 2 | 1,2 | Total |
| Rp + r | 179 161 | 109 114 | 31 30 | 16 13 | 653 |
| + g1 + | 340 | 223 | 61 | 29 | |
| * | 34.2% | 9.3% | 4.4% order is Rp-g1-r | ||
| Rp + + | 223 | 90 | 40 | 13 | 366 |
| + li g1 | 24.5% | 10.9% | 3.6% order is Rp-li-g1 | ||
*(seedlings inoculated in flats and only resistant individuals transplanted to field, to prevent spreading the rust to other cultures).
| Genes | Phase | XY | Xy | xY | xy | Total | % recomb. |
| Rp D7 | RS | 409 | 127 | 133 | 41 | 710 | 50 |
Singleton reported 35% recombination between D7-G1 and 27% between D7-R. This suggests the order is G1-R-D7, but might be different. However, if D7 falls to the left of R it should show fairly strong linkage with Rp, but it does not. Therefore the order in chrom. 10 is:
| Rp | li | g1 | R | d7 |
| 0 | 28 | 43 | 57 | 84 |
V. H. Rhoades