A 10-year Survey of Populations of Leptosphaeria maculans in France Indicates a Rapid Adaptation Towards the Rlm1 Resistance Gene of Oilseed Rape

By T. Rouxel, A. Penaud, X. Pinochet, H. Brun, L. Gout, R. Delourme, J. Schmit, M. Balesdent. European journal of plant pathology, 2003

231 citations recorded by the source corpus.

Subfields: Cell Biology, Plant Science

View Paper: https://www.semanticscholar.org/paper/279f8ad48544e8b8ef80288ae097612bd8fd6fef

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In Cell Biology

1. S. Rimmer
2. B. Fitt
3. M. Balesdent
4. T. Rouxel
5. Zi-Qin Li
6. P. D. de Wit
7. I. Stergiopoulos

In Plant Science

1. S. Rimmer
2. B. Fitt
3. M. Balesdent
4. T. Rouxel
5. Zi-Qin Li
6. L. Bousset-Vaslin
7. P. D. de Wit
8. I. Stergiopoulos

Citations in the corpus

• Fitness Cost Associated with Loss of the AvrLm4 Avirulence Function in Leptosphaeria maculans (Phoma Stem Canker of Oilseed Rape) (2005, methodology): “However, new major resistance genes often become ineffective after two to three seasons if cultivars carrying them are grown commercially (Li et al., 2003; Rouxel et al., 2003a) or in experimental plots (Brun et al., 2000).”
• World-Wide Importance of Phoma Stem Canker (Leptosphaeria maculans and L. biglobosa) on Oilseed Rape (Brassica napus) (2005, background): “Major gene resistance can be effective for several years under field conditions, provided the corresponding avirulent strains of the pathogen remain prevalent (Rouxel et al., 2003b).”
• Fungal effector proteins. (2009, background): “A similar deletion was observed in more than 90% of 460 field isolates analyzed from a world population, indicating that jettison of the AvrLm1 is the main mechanism of adaptation to Rlm1 without causing a significant fitness penalty for the fungus (6, 7, 104).”
• Resistance genes to Leptosphaeria maculans in Brassica napus (2006, background): “Nonetheless, genetic resistance remains the best economic choice for black leg control (Rimmer and van den Berg 1992; Rouxel et al. 2003b).”
• Improved Resistance Management for Durable Disease Control: A Case Study of Phoma Stem Canker of Oilseed Rape (Brassica napus) (2005, result): “The high score given by this model is consistent with observations of several specific resistance breakdowns that have occurred in Europe ( Rouxel et al., 2003 ) and, more recently, Australia (Li et al., 2003a,b, 2004; Sprague et al., 2006).”
• Major gene resistance in Brassica napus (oilseed rape) is overcome by changes in virulence of populations of Leptosphaeria maculans in France and Australia (2005, background): “Increases in the frequency of virulent avrLm1 isolates in the L. maculans population corresponded to the increased adoption of cultivars harbouring Rlm1.”
• Blackleg disease of canola mitigated by resistant cultivars and four-year crop rotations in western Canada (2013, background): “…pathogen populations result in increased selection pressure on the pathogen to overcome the genetic resistance in canola cultivars to L. maculans (Rouxel et al., 2003; Li et al., 2005), as well as for selection of pathogen strains insensitive to fungicides, should fungicide application be…”