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Quality differences between NILs of wheat variety Long 97-586 possessing HMW-GS 7+8 and 7

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文献类型：外文期刊

作者： Zhang LiLi ¹ ; Zhang YanBin ¹ ; Li JiLin ¹ ; Zhao HaiBin ² ; Song QingJie ² ; Yu HaiYang ² ; Zhang ChunLi ² ; Xin WenLi ² ;

作者机构： 1.Harbin Normal Univ, Coll Life & Environm Sci, Harbin 150025, Peoples R China

2.Heilongjiang Acad Agr Sci, Crop Breeding Inst, Harbin 150086, Peoples R China

关键词： wheat;quality;HMW-GS;nearly isogenic lines (NILs)

期刊名称：SCIENCE CHINA-LIFE SCIENCES （影响因子：6.038；五年影响因子：4.754 ）

ISSN： 1674-7305

年卷期： 2010 年 53 卷 2 期

页码：

收录情况： SCI

摘要： The high molecular weight glutenin subunits (HMW-GS) 7+8 were introduced into the Long 97-586 (1, 7, 2+12) wheat variety (Triticum aestivum) by 5 consecutive backcrosses with biochemical marker-assisted selection. Nearly isogenic lines (NILs) of HMW-GS 7 and 7+8 were obtained, and the NILs were planted in the experimental field at the Crop Breeding Institute of Heilongjiang Academy of Agricultural Science in 2004-2006. The field experiments were designed using the two-column contrast arrangement method with six replicates in 2004-2005 and four replicates in 2006. The result of three years experiments showed that the differences between NILs of Long 97-586 with subunit 7 and those with subunits 7+8 in the quality parameters of flour protein content and dry gluten content were negligible (P>0.1). However, the differences in some of the quality parameters were remarkably significant (P<0.01), including wet gluten content, ratio of wet gluten/dry gluten, gluten index, Zeleny sedimentation, ratio of sedimentation/dry gluten, and the farinogram parameters of water absorption, development time, stability, breakdown time and degree of softening. The difference between NILs with subunits 7+8 and subunit 7 was significant (P<0.05) on the alveogram W value and had a critical value (P=0.05) on the alveogram P value in 2006. The results show that HMW-GS 7+8 is far superior to HMW-GS 7 in terms of baking quality. The possibilities of using subunits 7+8 and subunit 7 in breeding strong and weak gluten wheat varieties are discussed in this paper.

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Quality differences between NILs of wheat variety Long 97-586 possessing HMW-GS 7+8 and 7

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