Effects of lettuce cultivar mixtures, differing for resistance genes, on Bremia lactucae incidence. Brigitte Maisonneuve, Eric Martin, Loic Jean, Claude Pope de Vallavieille, Michel Pitrat To cite this version: Brigitte Maisonneuve, Eric Martin, Loic Jean, Claude Pope de Vallavieille, Michel Pitrat. Effects of lettuce cultivar mixtures, differing for resistance genes, on Bremia lactucae incidence.. Plant resistance sustainability 2012. International conference, Oct 2012, La Colle sur Loup, France. 2012. hal- 01190799 HAL Id: hal-01190799 https://hal.archives-ouvertes.fr/hal-01190799 Submitted on 3 Jun 2020 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. 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Table of Contents Conference Presentation .................................................................................................................. 9 Organising committee ........................................................................................................................... 11 Scientific committee .............................................................................................................................. 12 Programme .................................................................................................................................... 13 Abstracts of Oral presentations Opening session ............................................................................................................................. 25 Sustainable Management of Plant Resistance to Pathogens and Pests Mundt C. C. ....................... 26 Session 1 Impact of plant disease resistance on the structure and evolution of pathogen populations ................................................................................................................................... 27 The evolution of pathogen infectivity in natural and managed plant-pathogen systems Thrall P. H.; Burdon J. J. ..................................................................................................................... 28 Plant resistance and the evolution of pathogens, Gandon S ............................................................ 28 Dynamics of pathogen adaptation to an imperfect treatment, Bourget R.; Chaumont L.; Sapoukhina N. ................................................................................................................................... 28 Erosion of quantitative resistance to Phytophthora infestans: from field observations to understanding population evolution, Andrivon D.; Corbière R.; Glais I.; Montarry J.; Pasco C.; Marquer B ......................................................................................................................................... 29 Rapid adaptation to partial resistance in grapevine downy mildew: evidence from European populations of Plasmopara viticola Rouxel M.; Mestre P.; Delière L.; Delmotte F. .......................... 30 Selection by resistant plants, Kerlan M.C., Montarry J. , Renault L., Dantec J.P.; Rouaux C.; Fournet S. .......................................................................................................................................... 32 Durability assessment of oilseed rape resistance to blackleg: Nine years of recurrent selection of Leptosphaeria maculans populations in field experiment Brun H.; Fudal I.; Ermel M.; Besnard A.L.1; Bousset L.; Marquer B.; Eber F.; Renard M.; Chèvre A.M.; Delourme R. ................................ 33 Effects of resistance combinations in melon on Aphis gossypii field populations Thomas S.; Vanlerberghe F.; Chareyron V.; Mistral P. ; Boissot N. ..................................................................... 34 The race structure of Leptosphaeria maculans (phoma stem canker) in the United Kingdom Yong-Ju H.; Georgia K. Mitrousia G.K.; Fitt B. D.L. ............................................................................. 35 Population genomic consequences of a major selection event in the poplar rust. De Mita S.; Persoons A.; Frey P.; Duplessis S.; Halkett F. .................................................................................... 36 When Resistance genes introgressed in agrosystems act as gateways for virulent populations from the wild: the apple scab case study Leroy Th.; Lemaire Ch.; Gladieux P.; de Gracia M.; Guérin F.; Durel Ch. E.; Michaleka M.; Caffier V.; Le Cam B. ............................................................. 36 Virulence patterns, genetic diversity and population structure of Australian Bipolaris sorokiniana isolates (teleomorph: Cochliobolus sativus) isolates. Horne M. ; Martin A. ; Platz G.; Sutherland M. ................................................................................................................................... 38 3 Session 2 Sustainable and integrated breeding and deployment of genetic resistance ................... 39 Broad-spectrum disease resistance in crop varieties for an unpredictable future Brown, James K. M ................................................................................................................................................... 40 Disease-suppressive landscapes – what role for spatial deployment of genetic resistance? Walter A.H. Rossing, Jeroen C.J. Groot, Geert J.M. Kessel, Edith T. Lammerts van Bueren, Wopke van der Werf ......................................................................................................................... 41 How effective is the durable resistance when encountering invasive strains? The case of wheat yellow rust pathogen Puccinia striiformis Sørensen C. K.; Dedryver F.; Leconte M.; Hovmøllera M. S.; De Vallavieille-Pope C. ............................................................................................................ 42 Components of quantitative resistance to leaf rust in wheat cultivars Azzimonti G.; Papaix J.; Marcel T.; Paillard S.; Sache I.; Lannou C.; Goyeau H. ....................................................................... 42 The durability of a major resistance gene is affected by quantitative trait loci which also confer quantitative resistance to virus. Quenouille-Lederer J.; Paulhiac E.; Mistral P.; Némouchi G.; Sage-Palloix A.M.; Savio B.; Simon V.; Moury B.; Palloix A. .............................................................. 43 Experimental evidence of the efficiency of two resistance genes deployment strategies - pyramiding or alternating - for sustainable management of root-knot nematodes Djian-Caporalino C.; Fazari A.; Marteu N.; Sage-Palloix A.M.; Risso S.; Lanza R.; Palloix A.; Castagnone-Sereno P. ....................................................................................................................... 45 Sustainable control of apple scab obtained by the association of cultivar resistance, sanitation and soft chemical control Didelot F.1; Parisi L.2; Orain G.3; Lemarquand A.3; Caffier V.1 .............. 46 Integrating the building blocks of agronomy and biocontrol into an IPM strategy for wheat stem sawfly Beres B. L.; Cárcamo H. A., Weaver D.K; Dosdall L.M.; Evenden M.L.; Hill B.D.; McKenzie R. H.; Cai Yang R.; Spaner D. M.......................................................................................................... 47 Exploring the potential of landscape diversification for limiting epidemic risk Lannou C.; Papaïx J.; GoyeauH.; David O.; Touzeau S.; Monod H. ................................................................................. 47 Durable plant disease resistance by evolution management - how? Lof M. E.; van der Werf W. ... 48 Sustainable plant resistance management in agricultural landscapes Fabre F.; Rousseau E.; Mailleret L.; Moury B. ........................................................................................................................ 49 Plant resistance deployment to control a diversified pathogen population: apple scab as a modelling case study Camara B.I.; Caffier V. ; Didelot F. ; Le Cam B. ; Sapoukhina N. .................... 50 Session 3 From plant-pathogen molecular interactions to the durability of resistance .................... 51 Molecular co-evolution between pathogens and wild tomatoes Rose L.......................................... 52 Constraints on resistance and pathogenicity factors and their consequences on resistance durability Moury B.; Caranta C.; Ewert S.; Lacombe S.; Fabre F.; Palloix A. ...................................... 52 Analysis of the wheat Lr34_'Yr18 gene and the molecular basis of durable resistance Keller B.; Krattinger S. G.; Selter L. L.; Risk J. M.; Harsh Ch.; Lagudah E. S. ...................................................... 53 Molecular evolution of the AvrLm7 avirulence gene of Leptosphaeria maculans under resistance gene selection in the field is driven by its genomic location, sexual reproduction and cropping practices Balesdent M.H.; Daverdin G.; Gout L.; Aubertot J.N.; Pinochet X.;Rouxel T. ..... 54 Characterization of adaptation to a resistance gene with a pleiotropic effect, the Vat gene in melon. Boissot N.; Thomas S.; Chareyron V.; Mistral P