Quality differences between NILs of wheat variety Longmai 20 possessing HMW-GS 7(OE)+8*and 17+18

文献类型: 外文期刊

第一作者: Zhao, H. B.

作者: Zhao, H. B.;Gao, C. J.;Song, W. F.;Zhang, Y. B.;Gao, D. D.;Zhao, L. J.;Yang, X. F.;Liu, D. J.;Song, Q. J.;Zhang, C. L.;Xin, W. L.;Xiao, Z. M.;Zhao, H. B.;Gao, C. J.;Zhang, Y. B.;Gao, D. D.;Zhang, X. M.

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关键词: Wheat; Quality; High molecular weight glutenin subunits (HMW-GS); Subunits 7(OE)+8*; Near-isogenic lines (NILs)

期刊名称:CEREAL RESEARCH COMMUNICATIONS ( 影响因子:0.85; 五年影响因子:1.067 )

ISSN: 0133-3720

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收录情况: SCI

摘要: In order to determine the genetic differences between high-molecular weight glutenin subunits (HMW-GS) 7(OE) + 8*and 17 + 18, HMW-GS 7(OE) + 8*from a Canadian extra-strong wheat cultivar Glenlea was introduced to Longmai 20 (1, 17 + 18, 5 + 10) by 6 consecutive backcrosses with biochemical marker-assisted selection. The near-isogenic lines (NILs) of Longmai 20 possessing HMW-GS 7(OE) + 8*and 17 + 18 were grown in the experimental field of the Crop Breeding Institute of Heilongjiang Academy of Agricultural Sciences from 2006 to 2009. The field experiments were conducted in a two-column contrast arrangement with four replicates. Compared with the NILs possessing subunits 17 + 18, the quality parameters of NILs with subunits 7(OE) + 8*, which include protein content, dry gluten content, ratio of wet gluten/dry gluten, ratio of Zeleny sedimentation/dry gluten, stability, maximum resistance and area of extensogram, increased by 1.5% (P = 0.06), - 0.7% (P = 0.47), - 1.9% (P < 0.01), 6.6% (P = 0.02), 11.2% (P = 0.6), 20.3% (P < 0.01) and 19.9% (P < 0.01), respectively. HMW-GS 7(OE) + 8*have a greater positive effect on the rheological properties of flour, such as the maximum resistance and area of extensogram, which are less influenced by environmental conditions compared to stability of Farinogram.

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