Titre :
Title : Breeding for late blight resistance in potato
Auteur(s) : M. Muskens (Agrico Research, The Netherlands), E. Vermersch (Desmazières), S. Allefs (Agrico Research, The Netherlands)
Evénement : COMAPPI
Numéro : 6
Année : 2017
Numéro de page : 165
Nombre de pages : 9
Résumé :
Mots-clés :
Abstract : Late blight, caused by the oomycete Phytophthora infestans, is one of the major pathogens of potato. The predominant method to control this disease is the frequent use of fungicides. Already in the beginning of the 20th century breeding for resistance was started, but soon after introduction of the first varieties, resistance was defeated and breeding shifted to obtaining partial resistance, which was supposed to be more durable. However, during the last decennia, several new resistance genes have been identified and cloned. Breeding for resistance has now moved to obtaining an optimal combination of different R-genes that result in a more durable level of resistance. The challenge for the breeder is to determine the optimal combination of R-genes in combination with all the other traits that are essential for modern potato production. The presentation highlights this development from the perspective of Desmazières, part of Agrico, a (Dutch) cooperative of seed potato growers.
Keywords : late blight, Phytophthora infestans, potato, resistance breeding, sustainability
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