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Home > Archive>Volume 24, Issue 3, 2023 >744-757. DOI:10.13430/j.cnki.jpgr.20220908001
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Variations of HMW-GS and Quality-Related Parameters in Wheat Varieties Released in Sichuan Province
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Affiliation:

1.Biotechnology and Nuclear Technology Research Institute， Sichuan Academy of Agricultural Sciences， Chengdu 610061;2.Triticeae Research Institute，Sichuan Agricultural University， Wenjiang 611130;3.Seed Station of Sichuan Province， Chengdu 610041;4.Institute of Agro-products Processing Science and Technology， Sichuan Academy of Agricultural Sciences， Chengdu 610061

Fund Project:

Foundation projects： Nuclear Energy Development and Research Project of State Administration of Science， Technology and Industry for National Defence； The Key Research and Development Program of Sichuan Province （2021YFYZ0002-05）； Chengdu Science and Technology Program （2021-YF05-02264-SN）； Special Project of Sichuan Provincial Finance Department （2021ZYGG-003）； Sichuan Science and Technology Program （2022ZDZX0014， 2023NSFSC0220）； Crop Molecular Breeding Platform of Sichuan Province （No. 2021YFYZ0027）； The 1+9 Open Competition Project of Sichuan Academy of Agricultural Sciences to Select the Best Candidates （1+9KJGG001， 1+9 KJGG002）

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    Abstract:

    The high molecular weight glutenin subunits （HMW-GS） compositions and the quality parameters in 184 Sichuan wheat varieties （released from 1949 to 2018）， one introduced variety and two landraces were analyzed. The results showed that there were three alleles at Glu-1A including 1， N， 2*， eight at Glu-1B including 7， 20， 22， 7+8， 7+9， 6+8， 14+15 and 23+18， and three at Glu-1D including 5+10， 2+12 and 3.1t+11*t. These subunits on sub-genomes A， B， D formed 23 allele combinations， and the combination （N/7+9/5+10） was found with a frequency of 12.3%. Taking advantage of breeding effects， the allele diversity at the Glu-1 locus， as well as the ratio of high-quality strong gluten 1 （Glu-1A） and 5+10 （Glu-1D） were gradually increased. The medium-weak gluten wheat varieties were found with predominant proportion in Sichuan province. The increase on test weight and sedimentation value， but the increase followed by decreased on other quality traits were observed. This study can provide reference for further improvement of wheat quality in Sichuan province， China.

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History
  • Received:September 08,2022
  • Revised:December 07,2022
  • Online: April 27,2023
  • Published: April 27,2023
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