Table 1. Frequency of virulence to 16 leaf rust resistance genes in the Puccinia triticina inoculum mixture used to inoculate field screening nurseries in Canada between 2010 and 2016.
Year | Number of isolates | Number of virulence phenotypes | Gene | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lr1 | Lr2a | Lr2c | Lr3 | Lr9 | Lr16 | Lr24 | Lr26 | Lr3ka | Lr11 | Lr17 | Lr30 | LrB | Lr10 | Lr14a | Lr18 | Lr21 | |||
2010 | 341 | 18 | 100 | 48.1 | 49.9 | 100 | 31.7 | 0 | 60.4 | 10 | 18.2 | 1.5 | 51.9 | 10.6 | 51.9 | 100 | 78.3 | 0 | 0 |
2011 | 216 | 33 | 100 | 52.3 | 63.6 | 100 | 12.1 | 2.8 | 60.7 | 13.1 | 20.1 | 0.9 | 47.7 | 15.4 | 46.7 | 99.5 | 57.9 | 0 | 7 |
2012 | 177 | 28 | 100.0 | 62.1 | 67.8 | 100.0 | 24.9 | 4.0 | 52.0 | 7.3 | 14.1 | 0.0 | 38.4 | 10.2 | 40.1 | 100.0 | 47.5 | 2.3 | 10.2 |
2013 | 236 | 29 | 100 | 42.8 | 43.2 | 100 | 33.5 | 0 | 41.1 | 10.6 | 28 | 5.9 | 56.8 | 26.3 | 56.8 | 96.2 | 66.9 | 0 | 10.6 |
2014 | 93 | 29 | 100 | 55.8 | 62.1 | 98.9 | 28.4 | 2.1 | 24.2 | 13.7 | 24.2 | 7.4 | 62.1 | 24.2 | 46.3 | 93.7 | 45.3 | 1.1 | 2.1 |
2015 | 208 | 42 | 99 | 41.3 | 41.8 | 99.5 | 53.8 | 4.3 | 48.6 | 24.5 | 37 | 5.3 | 62.5 | 36.5 | 63.9 | 98.1 | 73.1 | 0.5 | 10.1 |
2016 | 233 | 64 | 100 | 24.9 | 26.2 | 100 | 51.5 | 16.7 | 63.1 | 29.2 | 47.6 | 3.9 | 73.8 | 45.9 | 77.7 | 98.7 | 83.7 | 0 | 4.3 |