Table 1.
Frequency of breakdown of HD285 resistance (conferred by pvr23) by Potato virus Y (PVY) clone SON41p and six chimeras between SON41p and LYE84.2. Letters denote homogeneous groups in each column using Fisher's exact test at the P= 0.05 type‐I error threshold (corresponding to a 0.0024 type‐I error threshold after Bonferroni correction for multiple comparisons for experiments 1 and 2).
| Experiment 1 | Experiment 2 | Experiment 3 | Total | |
|---|---|---|---|---|
| P1 | 5/100b | 13/100b | ||
| HcPro | 0/100b | 3/100bc | ||
| P3‐6K1 | 0/100b | 0/100c | ||
| CI | 20/100a | 32/100a | 172/210a | 224/410 (54.6%) |
| Nib | 0/100b | 13/100b | ||
| CP | 1/100b | 2/100c | ||
| SON41p | 2/100b | 8/100bc | 30/225b | 40/425 (9.4%) |