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Inheritance analysis and mapping of quantitative trait loci (QTL) controlling individual anthocyanin compounds in purple barley (Hordeum vulgare L.) grains

Conceptualization: Yu-Ming Wei, Chunji Liu. Data curation: Xiao-Wei Zhang, Qian-Tao Jiang. Formal analysis: Xiao-Wei Zhang. Funding acquisition: Chunji Liu. Investigation: Xiao-Wei Zhang. Methodology: Xiao-Wei ... Zhang, Chunji Liu. 9 / 12 Project administration: Chunji Liu. Resources: Qian-Tao Jiang, Yu-Ming Wei. Software: Xiao-Wei Zhang, Yu-Ming Wei. Supervision: Yu-Ming Wei, Chunji Liu. Validation: Xiao-Wei

Identification of QTLs associated with tissue culture response of mature wheat embryos

GuoY‑ue Chen 0 XiuJ‑in Lan 0 YuMing Wei 0 0 Triticeae Research Institute, Sichuan Agricultural University , 211 Huimin Road, Wenjiang, Chengdu 611130, Sichuan , China Mature embryo is an excellent

Genome-wide characterization of developmental stage- and tissue-specific transcription factors in wheat

Background Wheat (Triticum aestivum) is one of the most important cereal crops, providing food for humans and feed for other animals. However, its productivity is challenged by various biotic and abiotic stresses such as fungal diseases, insects, drought, salinity, and cold. Transcription factors (TFs) regulate gene expression in different tissues and at various developmental...

Genome-Wide Quantitative Trait Locus Mapping Identifies Multiple Major Loci for Brittle Rachis and Threshability in Tibetan Semi-Wild Wheat (Triticum aestivum ssp. tibetanum Shao)

Tibetan semi-wild wheat (Triticum aestivum ssp. tibetanum Shao) is a semi-wild hexaploid wheat resource that is only naturally distributed in the Qinghai-Tibet Plateau. Brittle rachis and hard threshing are two important characters of Tibetan semi-wild wheat. A whole-genome linkage map of T. aestivum ssp. tibetanum was constructed using a recombinant inbred line population (Q1028...

Characterization of x-type high-molecular-weight glutenin promoters (x-HGP) from different genomes in Triticeae

The sequences of x-type high-molecular-weight glutenin promoter (x-HGP) from 21 diploid Triticeae species were cloned and sequenced. The lengths of x-HGP varied from 897 to 955 bp, and there are 329 variable sites including 105 singleton sites and 224 polymorphic sites. Genetic distances of pairwise X-HGP sequences ranged from 0.30 to 16.40% within 21 species and four outgroup...

The impact of single nucleotide polymorphism in monomeric alpha-amylase inhibitor genes from wild emmer wheat, primarily from Israel and Golan

Background Various enzyme inhibitors act on key insect gut digestive hydrolases, including alpha-amylases and proteinases. Alpha-amylase inhibitors have been widely investigated for their possible use in strengthening a plant's defense against insects that are highly dependent on starch as an energy source. We attempted to unravel the diversity of monomeric alpha-amylase...

Novel variants of HMW glutenin subunits from Aegilops section Sitopsis species in relation to evolution and wheat breeding

BackgroundHigh molecular weight glutenin subunits (HMW-GSs), encoded by the genes at Glu-1 loci in wheat and its related species, are significant in the determination of grain processing quality. However, the diversity and variations of HMW-GSs are relatively low in bread wheat. More interests are now focused on wheat wild relatives in Triticeae. The genus Aegilops represents an...

The γ-gliadin multigene family in common wheat (Triticum aestivum) and its closely related species

Background The unique properties of wheat flour primarily depend on gluten, which is the most important source of protein for human being. γ-Gliadins have been considered to be the most ancient of the wheat gluten family. The complex family structure of γ-gliadins complicates the determination of their function. Moreover, γ-gliadins contain several sets of celiac disease epitopes...

Characterization and comparative analysis of HMW glutenin 1Ay alleles with differential expressions

Background High-molecular-weight glutenin subunits (HMW-GSs) have been considered as most important seed storage proteins for wheat flour quality. 1Ay subunits are of great interest because they are always silent in common wheat. The presence of expressed 1Ay subunits in diploid and tetraploid wheat genotypes makes it possible to investigate molecular information of active 1Ay...

Molecular evolution of dimeric α-amylase inhibitor genes in wild emmer wheat and its ecological association

Background α-Amylase inhibitors are attractive candidates for the control of seed weevils, as these insects are highly dependent on starch as an energy source. In this study, we aimed to reveal the structure and diversity of dimeric α-amylase inhibitor genes in wild emmer wheat from Israel and to elucidate the relationship between the emmer wheat genes and ecological factors...