Development of Egyptian barley with HMW-GS Dy10 gene of wheat

ABSTRACT

Transgenic barley plants with high-molecular-weight glutenin subunit [HMW-GS] gene from wheat were successfully generated. The HMW-GS Dy10 gene, known to be essential in bread industry, was introduced into the Egyptian barley cv. Giza 123 by biolistic bombardment. The transgenic plants, regenerated from immature embryo-derived callus cultures, were normal and fertile. Stable integration of Dy10 transgene was confirmed by molecular analysis and its expression was studied by protein analysis. Dy10 gene was co-transformed into barley with the plasmid pAHC25 harboring the bar gene for selection and the gus reporter gene. Production of Egyptian barley with wheat HMW-GS genes could be used to develop barley flour with the unique properties of wheat flour for use in bread industry