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Ten Years of VINQUEST: First Insight for Breeding New Apple Cultivars with Durable Apple Scab Resistance

GND
17347098X
Affiliation
Agroscope, Breeding Research, 8820 Wädenswil, Switzerland
Patocchi, Andrea;
Affiliation
Agroscope, Breeding Research, 8820 Wädenswil, Switzerland
Wehrli, Andreas;
Affiliation
Agroscope, Plant Protection, 1260 Nyon, Switzerland
Dubuis, Pierre-Henri;
Affiliation
Better3fruit, 3202 Rillaar, Belgium
Auwerkerken, Annemarie;
Affiliation
Consorzio Italiano Vivaisti CIV, 44022 San Giuseppe di Cornacchio, Italy
Leida, Carmen;
Affiliation
Dipartimento di Scienze Agroalimentari, Ambientali e Animali, University of Udine, 33100 Udine, Italy
Cipriani, Guido;
Affiliation
NIAB EMR, East Malling, West Malling MEI 9 6BJ, United Kingdom
Passey, Tom;
Affiliation
Höhere Bundeslehranstalt und Bundesamt für Wein- und Obstbau Klosterneuburg, 3400 Klosterneuburg, Austria
Staples, Martina;
Affiliation
IRHS, Agrocampus-Ouest, INRA, Universite d' Angers, 49071 Beaucouze, France
Didelot, Frédérique;
Affiliation
Institut de Recherche et de Developpement en Agroenvironnement, Saint-Bruno-de-Montarville, QC J3V OG7, Canada
Philion, Vincent;
GND
172861896
Affiliation
Julius Kühn-Institute (JKI), Institute for Breeding Research on Fruit Crops, Germany
Peil, Andreas;
Affiliation
Landwirtschaftliche Fachschule Eisenstadt, 7000 Eisenstadt, Austria
Laszakovits, Hannes;
GND
1183008325
Affiliation
Versuchsstation Obst- und Weinbau Haidegg, 8047 Graz, Austria
Rühmer, Thomas;
Affiliation
Landwirtschaftskammer Tirol, 6020 Innsbruck, Austria
Boeck, Klemens;
Affiliation
Lithuanian Research Centre for Agriculture and Forestry, 54333 Babtai, Lithuania
Baniulis, Danas;
Affiliation
Obst-Sorten-Garten Ohlsdorf, 4694 Ohlsdorf, Austria
Strasser, Klaus;
Affiliation
Research and Breeding Institute of Pomology, Holovousy 129,508 01 Horice, Czech Republic
Vávra, Radek;
Affiliation
Laimburg Research Centre, Laimburg 6, 39040 Ora, Italy
Guerra, Walter;
Affiliation
Research Institute of Horticulture, Skiemiewice, Poland
Masny, Sylwester;
GND
1114892041
Affiliation
Staatliche Lehr- und Versuchsanstalt für Wein und Obstbau Weinsberg, 74189 Weinsberg, Germany
Rueß, Franz;
Affiliation
Station d'etudes et d'experimentations fruitieres de La Moriniere, La Moriniere, 37800 Saint Epain, France
Le Berre, Fanny;
GND
12724980X
Affiliation
Swedish University of Agricultural Sciences, Balsgard, 29194 Kristianstad, Sweden
Nybom, Hilde;
Affiliation
Department of Agricultural and Food Sciences, University of Bologna, 40126 Bologna, Italy
Tartarini, Stefano;
GND
138001847
Affiliation
University of Natural Resources and Life Sciences, Vienna, Austria
Spornberger, Andreas;
Affiliation
VNIISPK - Russian Research Institute of Fruit Crop Breeding, 302530 Zilina, Russia
Pikunova, Anna;
GND
1166100375
Affiliation
New Zealand Institute for Plant and Food Research Limited, Havelock North, New Zealand
Bus, Vincent G. M.

Apple scab, caused by Venturia inaequalis, is a major fungal disease worldwide. Cultivation of scab-resistant cultivars would reduce the chemical footprint of apple production. However, new apple cultivars carrying durable resistances should be developed to prevent or at least slow the breakdown of resistance against races of V. inaequalis. One way to achieve durable resistance is to pyramid multiple scab resistance genes in a cultivar. The choice of the resistance genes to be combined in the pyramids should take into account the frequency of resistance breakdown and the geographical distribution of apple scab isolates able to cause such breakdowns. In order to acquire this information and to make it available to apple breeders, the VINQUEST project (www.vinquest.ch) was initiated in 2009. Ten years after launching this project, 24 partners from 14 countries regularly contribute data. From 2009 to 2018, nearly 9,000 data points have been collected. This information has been used to identify the most promising apple scab resistance genes for developing cultivars with durable resistance, which to date are: Rvi5, Rvi11, Rvi12, Rvi14, and Rvi15. As expected, Rvi1, together with Rvi3 and Rvi8, were often overcome, and have little value for scab resistance breeding. Rvi10 may also belong to this group. On the other hand, Rvi2, Rvi4, Rvi6, Rvi7, Rvi9, and Rvi13 are still useful for breeding, but their use is recommended only in extended pyramids of $3 resistance genes.

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