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Home > Archive>Volume 19, Issue 6, 2018 >1126-1137. DOI:10.13430/j.cnki.jpgr.20180409001
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Variation of Quality-related Traits and HMW-GS of Wheat Cultivars in Shanxi Province
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Institute of Wheat Research, Shanxi Academy of Agricultural Sciences, Linfen 041000,Institute of Wheat Research, Shanxi Academy of Agricultural Sciences, Linfen 041000,Institute of Wheat Research, Shanxi Academy of Agricultural Sciences, Linfen 041000,Institute of Wheat Research, Shanxi Academy of Agricultural Sciences, Linfen 041000,Institute of Wheat Research, Shanxi Academy of Agricultural Sciences, Linfen 041000,Institute of Wheat Research, Shanxi Academy of Agricultural Sciences, Linfen 041000,Institute of Wheat Research, Shanxi Academy of Agricultural Sciences, Linfen 041000,Institute of Wheat Research, Shanxi Academy of Agricultural Sciences, Linfen 041000,Institute of Wheat Research, Shanxi Academy of Agricultural Sciences, Linfen 041000,Institute of Wheat Research, Shanxi Academy of Agricultural Sciences, Linfen 041000,Institute of Wheat Research, Shanxi Academy of Agricultural Sciences, Linfen 041000

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    Abstract:

    In order to provide a theoretical basis for further improvement of quality and breeding promotion, and to excavate excellented germplasm resources, quality traits and high molecular weight glutenin subunit (HMW-GS) composition of wheat cultivars in Shanxi Province were investigated. wheat cultivars HMW-GS subunits composition and quality traits were detected. Results showed that the medium-strong gluten wheat varieties dominate in Shanxi, with the hardness index decrease annually, and other quality traits increaseSfirst, andSthen decrease. Wheat cultivars of Shanxi have rich alleles in Glu-1 locus which code HMW-GS. There had three types of subunit (Null,1and 2*)at the Glu-A1, seven types of subunit (7+8、7+9、6+8、13+16、14+15、17+18、20)at Glu-B1 locus, and six types of subunits(2+12、2+10、5+12、5+10、4+12 and 2.2+12) at Glu-D1 locus. The change trend of the quality subunits was consistent with the trend of quality traits evolution. It was discovered that Glu-D1 locus has the greatest effect on protein content, hardness, Test weight, wet gluten content, extensibility and absorption, which 4+12 and 2+10 have positive effect on protein content and wet gluten content, Glu-B1 locus has the greatest effect on Zeleny sedimentation, development time, stability time, Stretch area and Max Resistance, which 7+8 and 7+9 subunits have positive effect on stretch area. 2* of Glu-A1 locus has positive effect on Zeleny sedimentation, development time, stability time, Stretch area and Max Resistance. And Thirty-two different subunit combination were discovered, and “Null,7+8,2+12”had the highest frequency. “2*, 7+8, 4+12”and “1, 7+9, 2+10”had a greater positive effect on quality traits.

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History
  • Received:April 09,2018
  • Revised:August 21,2018
  • Adopted:June 22,2018
  • Online: November 14,2018
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