TY  - JOUR
AU  - Wang, Wanqing
AU  - Wang, Ke
AU  - Chen, Xi
AU  - Prodanović, Slaven
AU  - Li, Xiaohui
AU  - Ye, Xingguo
AU  - Yan, Yueming
PY  - 2018
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4648
AB  - 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 omega-gliadin gene Omega-AS from Aegilops speltoides L. (2n = 2x = 14, SS) by allelic-specific PCR and investigated its phylogenetic relationships among Triticum and Aegilops species. 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 T-7 promoter. 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 anthesis.
PB  - Društvo genetičara Srbije, Beograd
T2  - Genetika
T1  - Molecular characterization and phylogenetic analysis of one omega-gliadin gene from aegilops speltoides l.
EP  - 517
IS  - 2
SP  - 503
VL  - 50
DO  - 10.2298/GENSR1802503W
ER  - 

@article{
author = "Wang, Wanqing and Wang, Ke and Chen, Xi and Prodanović, Slaven and Li, Xiaohui and Ye, Xingguo and Yan, Yueming",
year = "2018",
abstract = "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 omega-gliadin gene Omega-AS from Aegilops speltoides L. (2n = 2x = 14, SS) by allelic-specific PCR and investigated its phylogenetic relationships among Triticum and Aegilops species. 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 T-7 promoter. 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 anthesis.",
publisher = "Društvo genetičara Srbije, Beograd",
journal = "Genetika",
title = "Molecular characterization and phylogenetic analysis of one omega-gliadin gene from aegilops speltoides l.",
pages = "517-503",
number = "2",
volume = "50",
doi = "10.2298/GENSR1802503W"
}

Wang, W., Wang, K., Chen, X., Prodanović, S., Li, X., Ye, X.,& Yan, Y.. (2018). Molecular characterization and phylogenetic analysis of one omega-gliadin gene from aegilops speltoides l.. in Genetika
Društvo genetičara Srbije, Beograd., 50(2), 503-517.
https://doi.org/10.2298/GENSR1802503W

Wang W, Wang K, Chen X, Prodanović S, Li X, Ye X, Yan Y. Molecular characterization and phylogenetic analysis of one omega-gliadin gene from aegilops speltoides l.. in Genetika. 2018;50(2):503-517.
doi:10.2298/GENSR1802503W .

Wang, Wanqing, Wang, Ke, Chen, Xi, Prodanović, Slaven, Li, Xiaohui, Ye, Xingguo, Yan, Yueming, "Molecular characterization and phylogenetic analysis of one omega-gliadin gene from aegilops speltoides l." in Genetika, 50, no. 2 (2018):503-517,
https://doi.org/10.2298/GENSR1802503W . .