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Using genomics to decipher the grain legumes quality

AutorVaz Patto, María Carlota; Alves, Mara Lisa; Mecha, L.; Bento da Silva, A.; Leitao, Susana T.; Almeida, Nuno Felipe; Gonçalves, L.; Rubiales, Diego ; Bronze, M. R.
Fecha de publicación2016
CitaciónSecond International Legume Society Conference (2016)
ResumenToday's consumers are increasingly concerned with food quality and sustainability. Grain legumes could play an important role in answering these concerns. Grass pea (Lathyrus sativus) is a promising source of calories for drought-prone areas while common bean (Phaseolus vulgaris) is the most important edible legume worldwide. Yet the nonalignment of breeding objectives and end-users preferences is hampering their use in Europe. Breeding for improved end-user ́s quality is a complex task due to trait interaction. Particular metabolites act as antinutrients as well as health-promoting agents, influencing both taste and consumers’ acceptability. Under the scope of LEGATO, BEGEQA and QUALATY projects, we studied the genetic basis of several of these dual action bioactive compounds (as phenolic compounds, phytic acid or -ODAP) as a primary step for devising innovative quality breeding approaches for common bean and grass pea. To reach these goals, 100 grasspea and 150 common bean accessions were repeatedly field trialed. Seed metabolites contents were analyzed using different analytical approaches and DNA screened using NGS-based SNP genoty ping. A genome-wide association study, joining bioactive compounds content phenotypes with genomic information, is ongoing using mixed linear models to account for population structure and familiar relatedness. Functional markers will be identified conferring consumer-driven quality traits, to redirect breeding towards more attractive varieties.
DescripciónTrabajo presentado en el Second International Legume Society Conference "Legumes for a sustainable world" (ILS2), celebrado en Tróia (Portugal) del 11 al 14 de octubre de 2016.
URIhttp://hdl.handle.net/10261/159690
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