Wheat storage proteins: glutenin diversity in wild emmer, Triticum dicoccoides, in Israel and Turkey. 2. DNA diversity detected by PCR

1995 ◽  
Vol 91 (3) ◽  
pp. 409-414 ◽  
Author(s):  
M. A. Pagnotta ◽  
E. Nevo ◽  
A. Beiles ◽  
E. Porceddu
2009 ◽  
Vol 35 (5) ◽  
pp. 761-767 ◽  
Author(s):  
Gen-Qiao LI ◽  
Ti-Lin FANG ◽  
Hong-Tao ZHANG ◽  
Chao-Jie XIE ◽  
Zuo-Min YANG ◽  
...  

2017 ◽  
Vol 8 ◽  
Author(s):  
Jing Ren ◽  
Liang Chen ◽  
Xiaoli Jin ◽  
Miaomiao Zhang ◽  
Frank M. You ◽  
...  

Genetika ◽  
2018 ◽  
Vol 50 (2) ◽  
pp. 503-517 ◽  
Author(s):  
Wanqing Wang ◽  
Ke Wang ◽  
Xi Chen ◽  
Slaven Prodanovic ◽  
Xiaohui Li ◽  
...  

Gliadins, as the major components of wheat storage proteins, determine the extensibility properties of dough and have important effects on flour processing quality. Wheat related species carries potential storage protein gene resources for quality improvement. In this study, we isolated and characterized the first complete ?-gliadin gene Omega-AS from Aegilops speltoides L. (2n = 2x = 14, SS) by allelic-specific PCR and investigated its phylogenetic relationships among Triticum and Aegilopsspecies. Molecular structure showed that Omega-AS gene consisted of 1122 bp encoding 373 amino acid residues with deduced molecular mass 41379.21 Da. Omega-AS gene was exceptionally rich in prolines and glutamines with fewer methionine and no cysteine. Sequence characterization and epitope analysis showed that three epitopes QQPIPVQPQQ, TQPQQPTPIQ and IQPQQPFPQQ were absent in Omega-AS gene encoded protein, indicating its potential value for wheat quality improvement with less toxic, or no toxic peptides. Phylogenetic analysis revealed that Omega-AS was closely related to gliadin genes of wheat and related species and its divergence from bread wheat was more recently (less than 1.243 MYA). Heterologous expression showed that Omega-AS gene could successfully express with a high level in E. coli under the control of T7promoter. The transcription expression pattern of Omega-AS gene during grain development detected by qRT-PCR revealed that the highest expression level occurred at 17 days post an thesis.


1996 ◽  
Vol 25 (4) ◽  
pp. 243-251
Author(s):  
Jean-Claude Autran

A four-year coordinated wheat research programme was recently conducted with the aim of advancing understanding of wheat processing and quality under the specific conditions of the European Union. The main areas examined included milling quality, starch/gluten separation, the basis of breadmaking quality, the basis of biscuit quality, flour composition, dough development, the genetics of wheat storage proteins and sprouting resistance. The programme produced a range of results which will contribute to developments In the processing industry, wheat breeding and trade.


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