Table 6.
Segregation of F2 populations of bi-parental crosses of Aegilops spp. to race TTKSK of P. graminis f. sp. tritici.
| Species | Crossa | F2 plants | ||||
|---|---|---|---|---|---|---|
| Resistant | Susceptible | Ratio tested (R:S) | X2 | P-value | ||
| Aegilops comosa | PI 551049 (S) x PI 551054 (R) | 28 | 108 | 1:3 | 1.412 | 0.235 |
| Aegilops cylindrica | PI 554216 (S) x PI 254864 (R) | 139 | 47 | 3:1 | 0.007 | 0.933 |
| Aegilops cylindrica | PI 554216 (S) x PI 374345 (R) | 140 | 32 | 3:1 | 3.752 | 0.053 |
| Aegilops cylindrica | PI 554216 (S) x PI 568161 (R) | 109 | 37 | 3:1 | 0.009 | 0.924 |
| Aegilops cylindrica | PI 554216 (S) x PI 573369 (R) | 104 | 27 | 3:1 | 1.346 | 0.246 |
| Aegilops peregrina | PI 487274 (S) x PI 487278 (R) | 24 | 69 | 1:3 | 0.032 | 0.858 |
| Aegilops peregrina | PI 483010 (S) x PI 603931 (R) | 107 | 55 | 11:5 | 0.550 | 0.458 |
| Aegilops peregrina | PI 483010 (S) x PI 604185 (R) | 127 | 57 | 11:5 | 0.002 | 0.937 |
| Aegilops peregrina | PI 483010 (S) x PI 604193 (R) | 135 | 49 | 3:1 | 0.261 | 0.610 |
| Aegilops triuncialis | PI 173615 (S) x PI 219868 (R) | 110 | 35 | 3:1 | 0.057 | 0.811 |
| Aegilops triuncialis | PI 173615 (S) x PI 221899 (R) | 59 | 41 | 9:7 | 0.307 | 0.579 |
| Aegilops triuncialis | PI 173615 (S) x PI 254860 (R) | 82 | 7 | 15:1 | 0.396 | 0.529 |
| Aegilops triuncialis | PI 330492 (S) x PI 254861 (R) | 71 | 25 | 3:1 | 0.056 | 0.814 |
| Aegilops triuncialis | PI 330492 (S) x PI 374357 (R) | 175 | 15 | 15:1 | 0.877 | 0.349 |
| Aegilops triuncialis | PI 173615 (S) x PI 491436 (R) | 150 | 11 | 15:1 | 0.093 | 0.760 |
| Aegilops umbellulata | PI 542369 (S) x PI 298905 (R) | 147 | 53 | 3:1 | 0.240 | 0.624 |
| Aegilops umbellulata | PI 554395 (S) x PI 542375 (R) | 90 | 64 | 9 :7 | 0.301 | 0.584 |
aFemale parent/Male parent; (R) and (S) indicate the resistant and susceptible parent, respectively.