Molecular Cloning and Identification of Novel ω-gliadin Genes from Triticum Species

Z. L. Li; D. D. Wu; H. Y. Li; G. Chen; W. G. Cao; S. Z. Ning; D. C. Liu; L. Q. Zhang

doi:10.1556/0806.44.2016.020

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Cereal Research Communications

Volume/Issue:: Volume 44: Issue 2

Molecular Cloning and Identification of Novel ω-gliadin Genes from Triticum Species

Authors:

Z. L. Li

Z. L. Li Sichuan Agricultural University, Wenjiang, Chengdu, 211 Huimin Road, 611130, China

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D. D. Wu

D. D. Wu Sichuan Agricultural University, Wenjiang, Chengdu, 211 Huimin Road, 611130, China

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H. Y. Li

H. Y. Li Sichuan Agricultural University, Wenjiang, Chengdu, 211 Huimin Road, 611130, China

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G. Chen

G. Chen Sichuan Agricultural University, Wenjiang, Chengdu, 211 Huimin Road, 611130, China

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W. G. Cao

W. G. Cao Agriculture and Agri-Food Canada, 960 Carling Ave Ottawa, Ontario K1A 0C6, Canada

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S. Z. Ning

S. Z. Ning Sichuan Agricultural University, Wenjiang, Chengdu, 211 Huimin Road, 611130, China

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D. C. Liu

D. C. Liu Sichuan Agricultural University, Wenjiang, Chengdu, 211 Huimin Road, 611130, China

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, and

L. Q. Zhang

L. Q. Zhang Sichuan Agricultural University, Wenjiang, Chengdu, 211 Huimin Road, 611130, China

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Pages:: 309–319

Online Publication Date:: Jun 2016

Publication Date:: 01 Jun 2016

Article Category:: Research Article

DOI:: https://doi.org/10.1556/0806.44.2016.020

Keywords:: ω-gliadin; Triticum ; cloning; pseudogene

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Gliadin is a main component of gluten proteins that affect functional properties of bread making and contributes to the viscous nature of doughs. In this study, thirteen novel ω-gliadin genes were identified in several Triticum species, which encode the ARH-, ATDand ATN-type proteins. Two novel types of ω-gliadins: ATD- and ATN- have not yet been reported. The lengths of 13 sequences were ranged from 927 to 1269 bp and the deduced mature proteins were varied from 309 to 414 residues. All 13 genes were pseudogenes because of the presence of internal stop codons. The primary structure of these ω-gliadin genes included a signal peptide, a conserved N-terminal domain, a repetitive domain and a conserved C-terminus. In this paper, we first characterize ω-gliadin genes from T. timopheevi ssp. timopheevi and T. timopheevi ssp. araraticum. The ω-gliadin gene variation and the evolutionary relationship of ω-gliadin family genes were also discussed.

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Cereal Research Communications A Quarterly of the Cereal Research Non-Profit Ltd. Company

Print ISSN:: 0133-3720

Online ISSN:: 1788-9170

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Cereal Research Communications
Language	English
Size	A4
Year of Foundation	1973
Volumes per Year	1
Issues per Year	4
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0133-3720 (Print)
ISSN	1788-9170 (Online)