Effect of HMW-GS 5+10 on Quality Parameters in Four Leading Wheat Cultivars  

作　　者：ZHANG Yan-bin, SUN Lian-fa, XIN Wen-li, SONG Qin-jie, ZHANG Chun-li, ZHAO Hai-bin, XIAO Zhi-min and QI Shi-yuCrop Breeding Institute , Heilongjiang Academy of Agricultural Sciences , Harbin 150086 , P. R. China 

出　　处：《Agricultural Sciences in China》2003年第5期483-488,共6页中国农业科学（英文版）

基　　金：supported by the National Natural Science Foundation of China(39770461);Science and Technology Department of Heilongjiang Province.

摘　　要：HMW-GS 5 + 10 was introduced to four major wheat cultivars Kehan9, Kefeng3, Longmai20 and Kenda4 through 5 or 6 consecutive backcrosses. No significant difference in protein content and dry gluten content was observed between cultivars containing 5 + 10 and 2 + 12 or 3 + 12 (P>0.1). In cultivars containing HMW-GS 5 + 10, the ratio of wet gluten content to dry gluten content was 2. 9 - 5.0% (P<0. 01) lower than the ratio from the cultivars containing 2 + 12 or 3 + 12, the ratio of Zeleny sedimentation volume to dry gluten content was 4. 5 - 13. 4% (P<0.05) higher. The degree of softening in cultivars having 5 + 10 was 15 -25 FU (P<0. 01) lower, while the maximum resistance was 82 - 193 EU (P<0. 05) higher. Backcrosses with biochemical marker assisted selection in the improvement of quality in wheat cultivars was discussed.HMW-GS 5 + 10 was introduced to four major wheat cultivars Kehan9, Kefeng3, Longmai20 and Kenda4 through 5 or 6 consecutive backcrosses. No significant difference in protein content and dry gluten content was observed between cultivars containing 5 + 10 and 2 + 12 or 3 + 12 (P>0.1). In cultivars containing HMW-GS 5 + 10, the ratio of wet gluten content to dry gluten content was 2. 9 - 5.0% (P<0. 01) lower than the ratio from the cultivars containing 2 + 12 or 3 + 12, the ratio of Zeleny sedimentation volume to dry gluten content was 4. 5 - 13. 4% (P<0.05) higher. The degree of softening in cultivars having 5 + 10 was 15 -25 FU (P<0. 01) lower, while the maximum resistance was 82 - 193 EU (P<0. 05) higher. Backcrosses with biochemical marker assisted selection in the improvement of quality in wheat cultivars was discussed.

关 键 词：WHEAT HMW glutenin subunits Selective backcross Quality 

分 类 号：S512.1[农业科学—作物学]