Allelic variation of the D-prolamin subunits encoded at the Hch genome in a collection of primary hexaploid tritordeums

Hexaploid tritordeum is the amphiploid derived from the cross between Hordeum chilense and durum wheat. The storage proteins synthesised by the H-ch genome have an influence on the gluten strength of this amphiploid, The D-prolamins of H. chilense are glutenin-like proteins. The variability has been analysed electrophoretically and up to 20 different patterns have been detected in a world collection of this species. This genetic variability of H. chilense could be a source of additional variation in tritordeum and in breeding wheat for quality.