Polymorphisms in cyanogenic glucoside and cyano-amino acid content in natural accessions of common vetch (Vicia sativa L.) and selection for improved agronomic performance

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Marwa Aouida, Fred Rook, Alexandra Bianca Maimann, Raquel Sánchez-Pérez, Ghassen Abid, Marie Laure Fauconnier, Moez Jebara

Common vetch (Vicia sativa L.) is an important annual forage legume. It is used as a cover crop, green manure, pasture legume and for silage and hay production. Its seeds can be used as a source of highly digestible protein and minerals in animal diets. However, their utilization as a feedstuff for monogastric animals is hindered by the fact that the seeds contain cyanogenic antinutritional factors that reduce their palatability. An effective utilization of V. sativa seeds as a successful monogastric feed stuff requires selection for higher protein availability and minimization of the cyanogenic antinutritional factors content. In this study, we selected one natural accession named Mjez Ibeb, from a collection of 25 accessions and cultivars, based on its superior agronomic performance and its naturally occurring genetic variation for cyanogenic traits. We investigated the genetic variation that exists for the cyanogenesis trait in more detail and analysed the seeds of 133 lines derived from accession Mjez lbeb. Of these, 40 naturally polymorphic lines that showed deficiencies in cyanogenesis and cyano-amino acid content, were subsequently selected for detailed chemical analysis. Cyanogenic glucosides and cyano-amino acid concentrations varied widely in the 40 lines. Multivariate analysis was performed and three lines (L16, L21, L18) with low content of cyanogenic compounds were identified.

Original languageEnglish
JournalPlant Breeding
Volume138
Issue number3
Pages (from-to)348-359
ISSN0179-9541
DOIs
Publication statusPublished - 1 Jun 2019

    Research areas

  • agronomic performance, cyano-amino acids, cyanogenesis, cyanogenic glucosides (CNglcs), polymorphism, Vicia sativa selection

ID: 223820648