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The pursuit of resistance sources to biotic stresses in Lathyrus sativus

AutorAlmeida, Nuno Felipe; Gonçalves, L.; Lourenço, M.; Julião, N.; Aznar-Fernández, T.; Rubiales, Diego ; Vaz Patto, María Carlota
Fecha de publicación2016
CitaciónSecond International Legume Society Conference (2016)
ResumenThe need for more sustainable and environmentally safe agriculture has reinforced interest in legume cultivation in Europe. These species have the unique capacity for symbiotic nitrogen fixation, highlighting their importance in both natural and agricultural ecosystems. In addition, genotypes that are naturally resistant to pathogens are useful for reducing pesticide application. Grass pea (Lathyrus sativus) is a feed, food and fodder crop, with great adaptability to inauspicious environments, high protein content and resistance to serious diseases. It is one of the most promising sources of calories and protein for the drought-prone and marginal areas of Asia and Africa, being an alternative to marginal soils and for cropping systems diversification in Europe. As part of the European LEGATO and the Portuguese QUALATY projects, we focus on the search for resistance sources to weevils and fungal diseases on a collection of hundred grass pea genotypes from diverse origins, including Europe, Africa and Asia. Along with the phenotypic observations (resistance level) on field and controlled conditions, we used DArT-seq and E-SSRs to access the genetic diversity within and among grass pea accessions. This will allow identifying any relationship between genetic diversity and resistance level. The acquired data will reveal valuable diverse sources of resistance for the development of modern grass pea cultivars, improving the attractiveness of this underused but promising crop.
URIhttp://hdl.handle.net/10261/159716
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