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Exploitation of wild relatives in pea breeding for disease and pest resistance

AuthorsRubiales, Diego ; Barilli, Eleonora ; Bani, Moustapha; Rispail, Nicolas ; Aznar-Fernández, T.; Fondevilla, Sara
Issue DateJul-2014
Citation6th International Food Legume Research Conference (2014)
7th International Conference of Legume Genetics and Genomics (2014)
AbstractUnfortunately, for some pathogens and pests, there genetic resistance in pea (Pisum sativum ssp. sativum) germplasm and cultivars is scarce. In occasions, we can exploit them for related P. sativum ssp. germplasm, or even from the most distant P. fulvum. Examples of the breeding activities performed at CSIC-Cordoba will be mentioned. Germplasm collections of Pisum have been throroughtly screened for resistance to ascochyta blight, powdery mildew, rust, broomrape, and more recently fusarium wilt, aphid and weevil, yielding the identification of valuable sources of resistance that are being introduced in our breeding program. Inheritance of some of the identified resistances has been studied and underlaying mechanisms characterized. As an example, a new gene (Er3) for powdery mildew resistance was identified in P. fulvum and introduced in pea, with a resistant cultivar being released. Similarly, the first two broomrape resistant cultivars are now being realeased. Breeding for ascochyta, rust, aphid and weevil resistance is in progress.
DescriptionTrabajo presentado en la 6th International Food Legume Research Conference y la 7th International Conference of Legume Genetics and Genomics (IFLRC VI & ICLGG VII), celebrada en Saskatoon (Canadá) del 7 al 11 de julio de 2014.
Appears in Collections:(IAS) Comunicaciones congresos
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