Allelic variation of low molecular weight glutenin subunits composition and the revealed genetic diversity in durum wheat Triticum turgidum L. ssp. durum

X. Hu; Y. Peng; X. Ren; J. Peng; E. Nevo; W. Ma; D. Sun

doi:10.1270/jsbbs.18085

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Allelic variation of low molecular weight glutenin subunits composition and the revealed genetic diversity in durum wheat Triticum turgidum L. ssp. durum

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Allelic variation of low molecular weight glutenin subunits composition and the revealed genetic diversity in durum wheat Triticum turgidum L. ssp. durum

X. Hu, Y. Peng, X. Ren, J. Peng, E. Nevo, W. Ma and D. Sun

Breeding Science, Vol.68(5), pp.524-535

2018

DOI: https://doi.org/10.1270/jsbbs.18085

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Abstract

Low molecular weight glutenin subunits (LMW-GS) play an important role in determining the bread-making characteristics of dough in the end-use quality of wheat. In this study, A total of 149 worldwide-originated durum wheat were used to analyze the composition of LMW-GS using MALDI-TOF-MS. Based on the allelic variation of glutenin subunits, the genetic diversity was evaluated for the 149 durum wheat. Five types of alleles were identified at the Glu-A3 locus with Glu-A3e, Glu-A3a/c, Glu-A3f, Glu-A3d and Glu-A3b accounting for 43.0%, 16.1%, 12.8%, 10.1% and 7.4 % of the accessions, respectively. Five types of alleles were identified at the Glu-B3 locus: Glu-B3d (60.4%), Glu-B3b (6.0%), Glu-B3c (6.0%), Glu-B3h (2.7%) and Glu-B3f (0.7%). Two novel alleles encoding abnormal subunits 40500 Da and 41260 Da were identified at the Glu-A3 and Glu-B3 loci, respectively. Further studies are needed to match these novel alleles to previously discovered novel alleles. Moreover, the genetic diversity analysis indicated that great genetic variation existed in durum wheat among encoding loci of glutenin subunits, released periods of varieties and different geographical origins. The results provide more important information of potential germplasm for the improvement of durum wheat and common wheat.

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Title: Allelic variation of low molecular weight glutenin subunits composition and the revealed genetic diversity in durum wheat Triticum turgidum L. ssp. durum
Authors/Creators: X. Hu (Author/Creator) - Huazhong Agricultural University
Y. Peng (Author/Creator) - Huazhong Agricultural University
X. Ren (Author/Creator) - Huazhong Agricultural University
J. Peng (Author/Creator) - Science and Technology Center, China National Seed Group Co., Ltd., Wuhan, 430075, Hubei, China.
E. Nevo (Author/Creator) - University of Haifa
W. Ma (Author/Creator) - Murdoch University
D. Sun (Author/Creator) - Huazhong Agricultural University
Publication Details: Breeding Science, Vol.68(5), pp.524-535
Publisher: Japanese Society of Breeding
Identifiers: 991005540932607891
Copyright: © 2018 JAPANESE SOCIETY OF BREEDING
Murdoch Affiliation: State Agricultural Biotechnology Centre; School of Veterinary and Life Sciences
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 3 Agriculture, Environment & Ecology; 3.85 Food Science & Technology; 3.85.99 Cereal Starch Properties
Web Of Science research areas: Agronomy; Plant Sciences
ESI research areas: Plant & Animal Science