The protein content and its type are principal factors affecting wheat (Triticum aestivum) end product quality. Among the wheat proteins, glutenin proteins, especially, high molecular weight glutenin subunits (HMW-GS) are major determinants of processing quality. Wheat and its primary gene pool have limited variation in terms of HMW-GS alleles. Wild relatives of wheat are an important source of...

Background and Objectives Wheat gluten proteins make up one of the most complex protein aggregates in nature. Their qualitative quantitative composition is determined by genetic environmental factors as well technological processes. Findings Gluten comprise ?5-, ?1,2-, ?-, ?-gliadins high-molecular-weight glutenin subunits (HMW-GS) low-molecular-weight (LMW) GS. About 50% are monomeric gliadins...

D hordein, a prolamin storage protein of barley endosperms, is highly homologous to the high molecular weight (HWM) glutenin subunits, which are the major determinants of bread-making quality in wheat flour. In hexaploid wheat (AABBDD), each genome contains two paralogous copies of HMW-glutenin genes that encode the x- and y-type HMW-glutenin subunits. Previously, we reported the sequence analy...

Wheat has been cultivated for 10000 years and ever since the origin of hexaploid wheat it has been exempt from natural selection. Instead, it was under the constant selective pressure of human agriculture from harvest to sowing during every year, producing a vast array of varieties. Wheat has been adopted globally, accumulating variation for genes involved in yield traits, environmental adaptat...

Modern biological tools of genetic engineering and biotechnology can allow transfer of gene(s) across crop species. The r-DNA technology has tremendous potential to transfer bread making character of bread wheat into sorghum by transferring glutenin gene(s), which can improve the visico-elastic property of the sorghum flour/dough. These genes in addition to improving quality can significantly c...

High molecular weight glutenin subunits (HMW-GS) play an essential role in wheat processing quality. In this study, we evaluated the genetic pattern with HMW-GS composition between generations and examined whether agronomic and quality traits were correlated with each other. A wheat (Triticum aestivum L.) cultivar with high protein content and 2 cultivars with low protein content were subjected...

Amino acids are delivered into developing wheat grains to support the accumulation of storage proteins in starchy endosperm, and transporters play important roles regulating this process. RNA-seq, RT-qPCR, promoter-GUS assays showed that three amino acid differentially expressed endosperm transfer cells ( TaAAP2 ), TaAAP13 aleurone embryo grain TaAAP21 respectively. Yeast complementation reveal...

A new method of sequential extraction of proteins followed by quantitative and qualitative determination by reverse-phased high-performance liquid chromatography (RP-HPLC) was used to analyse the effect of environmental conditions (3N fertilisation rates, two varieties, two sites and two growing seasons) on quantitative and qualitative variation of wheat storage proteins. The results showed tha...

High-molecular-weight glutenin subunits (HMW-GS) composition was analyzed by sodium-dodecyl-sulfatpolyacrilamid-gel electrophoresis (SDS-PAGE), while the quantitative determination of total HMW-GS was obtained by reversed phasehigh performance liquid chromatography (RP-HPLC). Considering HMW-GS composition, the most frequent subunits at Glu-A1 locus were N, at Glu-B1 locus 7+9 and at Glu-D1 loc...