Table 1.
Nomenclature of the differential host–pathogen interactions of Venturia inaequalis and Malus. Research is in progress to identify F1 progeny in current differential hosts that carry multiple resistance genes.
| Malus | Venturia inaequalis | |||||
|---|---|---|---|---|---|---|
| Differential host | Resistance locus | Avirulence locus | Race | |||
| No. | Accession | Old | New | New | Old | |
| h(0) | (Royal) Gala | — | — | 0 | ||
| h(1) | Golden Delicious | Vg | Rvi1 | AvrRvi1 | (1) | |
| h(2) | TSR34T15 | Vh2 = Vr − A | Rvi2 | AvrRvi2 | p‐9 | (2) |
| h(3) | (F1 of) Geneva | Vh3 | Rvi3 | AvrRvi3 | p‐10 | (3) |
| h(4) | TSR33T239 | Vh4 = Vx = Vr1 | Rvi4 | AvrRvi4 | (4) | |
| h(5) | 9‐AR2T196 | Vm | Rvi5 | AvrRvi5 | (5) | |
| h(6) | Priscilla | Vf | Rvi6 | AvrRvi6 | (6) | |
| h(7) | (F1 of) M. × floribunda 821 | Vfh | Rvi7 | AvrRvi7 | (7) | |
| h(8) | GMAL3631‐W193B | Vh8 | Rvi8 | AvrRvi8 | (8) | |
| h(9) | (F1 of) Dolgo | Vdolgo | Rvi9 | AvrRvi9 | p‐8 | (9) |
| h(10) | A723‐6 | Va | Rvi10 | AvrRvi10 | (10) | |
| h(11) | A722‐7 | Vbj | Rvi11 | AvrRvi11 | (11) | |
| h(12) | Hansen's baccata #2 | Vb | Rvi12 | AvrRvi12 | (12) | |
| h(13) | Durello di Forlì | Vd | Rvi13 | AvrRvi13 | (13) | |
| h(14) | (F1 of) Dülmener Rosen | Vdr1 | Rvi14 | AvrRvi14 | (14) | |
| h(15) | GMAL2473 | Vr2 | Rvi15 | AvrRvi15 | (15) | |
| h(16) | MIS op 93.051 G07‐098 | Vmis | Rvi16 | AvrRvi16 | (16) | |
| h(17) | (F1 of) Antonovka APF22 | Va1 | Rvi17 | AvrRvi17 | (17) | |