Molecular characterization of differentTriticum monococcumssp.monococcum Glu-A1mxalleles | Zendy

H.Y. Li | Zendy; Zenglin Li | Zendy; Xiang-hui ZENG | Zendy; Li Zhao | Zendy; Gang Chen | Zendy; Chunlan Kou | Zendy; Shunzong Ning | Zendy; Zhongwei Yuan | Zendy; Youliang Zheng | Zendy; D.C. Liu | Zendy; L.Q. Zhang | Zendy

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Molecular characterization of differentTriticum monococcumssp.monococcum Glu-A1^mxalleles

Author(s) -

H.Y. Li,

Zenglin Li,

Xiang-hui ZENG,

Li Zhao,

Gang Chen,

Chunlan Kou,

Shunzong Ning,

Zhongwei Yuan,

Youliang Zheng,

D.C. Liu,

L.Q. Zhang

Publication year - 2016

Publication title -

cereal research communications

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.28

H-Index - 32

eISSN - 1788-9170

pISSN - 0133-3720

DOI - 10.1556/0806.44.2016.006

Subject(s) - glutenin , locus (genetics) , ploidy , allele , biology , common wheat , gliadin , genetics , aegilops , winter wheat , storage protein , loss of heterozygosity , gluten , gene , food science , agronomy , chromosome , protein subunit

High-molecular-weight glutenin subunits (HMW-GSs) are important seed storage proteins associated with bread-making quality in common wheat (Triticum aestivum L., 2n = 6x = 42, AABBDD). Variation in the Glu-A1x locus in common wheat is scare. Diploid Triticum monococcum ssp. monococcum (2n = 2x = 14, A^mA^m) is the first cultivated wheat. In the present study, allelic variations at the Glu-A1^mx locus were systematically investigated in 197 T. monococcum ssp. monococcum accessions. Out of the 8 detected Glu-A1^mx alleles, 5 were novel, including Glu-A1^m-b, Glu-A1^m-c, Glu-A1^m-d, Glu-A1^m-g, and Glu-A1^m-h. This diversity is higher than that of common wheat. Compared with 1Ax1 and 1Ax2*, which are present in common wheat, these alleles contained three deletions/insertions as well as some single nucleotide polymorphism variations that might affect the elastic properties of wheat flour. New variations in T. monococcum probably occurred after the divergence between A and A^m and are excluded in common wheat populations. These allelic variations could be used as novel resources to further improve wheat quality

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