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Home > Archive>Volume 24, Issue 3, 2023 >701-718. DOI:10.13430/j.cnki.jpgr.20221031003
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Quality Analysis in a Collection of Wheat Varieties Approved in China
Author:
Affiliation:

1.Research Stitute of Hybrid Wheat， Beijing Academy of Agriculture and Forestry Sciences / Beijing Municipal Key Laboratory of Molecular Genetics of Hybrid Wheat， Beijing 100097;2.College of Plant Science and Technology， Beijing University of Agriculture， Beijing 102206

Fund Project:

Foundation projects： Beijing Academy of Agriculture and Forestry Sciences Sci-Tech Innovation Capacity Building Program （KJCX20200115， KJCX20200304）； National Key Research and Development Program of China （2016YFD0102000）

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    Abstract:

    In order to clarify the situation of the quality-related genes and corresponding traits of Chinese wheat varieties， 530 wheat varieties released in China in the recent years were analyzed for volume weight， crude protein content， wet gluten content， water absorption and stability time. This collection was genotyped with 13 quality related KASP markers， enabling deciphering the distribution and pyramiding of favorable alleles in wheat-planting areas. The frequency of favorable alleles among different regions was unevenly distributed. The frequencies of 1BL/1RS （-）， 1Ax 1/1Ax 2*， Pinb-D1b and Pinb-B2b were significantly different among different regions， while no difference on the frequency of 1Bx17+1By18， TaPsy-D1a and TaPod-A1b among different regions was observed. Twelve genotypes containing four elite alleles of 1B/1R （-）， 1Ax 1/1Ax 2*， 1Dx5+1Dy10 and glu-B3g+ at five gluten quality related loci were identified. For three grain hardness genes， the elite alleles combination （Pina-D1b + Pinb-D1b + Pinb-B2b） was not detected， while the combinations of either Pina-D1b + Pinb-B2b or Pinb-D1b + Pinb-B2b were found in 16 and 88 samples， respectively. Ten samples were found containing favorable allelic variants of five color related genes. Four genotypes simultaneously containing 10 favorable alleles were obtained， and 16 varieties with 9 favorable allelic variants were found. The results of quality analysis showed that there were regional differences in quality traits， and the stability time was inconsistent with protein content and wet gluten content. The frequency of elite alleles at gluten quality related genes， such as 1BL/1RS （-）， 1Ax1/1Ax2* and 1Dx5+1Dy10， was significantly different in the wheat varieties with strong gluten， medium strong gluten and medium gluten， and the allele frequency was positively correlated with the quality.

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History
  • Received:October 31,2022
  • Revised:December 27,2022
  • Online: April 27,2023
  • Published: April 27,2023
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