摘要
采用SDS PAGE和SCAR标记对我国小麦主产区近 30年来主要推广品种和新近育成的部分品系共 179份进行了 1BL/ 1RS鉴定 ,结果表明 :我国 2 0世纪 80年代后育成的小麦品种中约 38%为 1BL/ 1RS品种 ,其中北方冬麦区和黄淮冬麦区频率较高 ,分别为 5 9%和 4 2 % ;长江中下游冬麦区和西南冬麦区频率较低 ,均为 2 0 % ;东北春麦区未发现 1BL/ 1RS品种。大多数中、强筋小麦品种不含 1BL/ 1RS。高分子量谷蛋白亚基可能对 1BL/ 1RS对小麦加工品质的负面影响有补偿作用。选育中、强筋小麦品种一般不宜采用 1BL/ 1RS品种作亲本 ,或至少其中一个亲本应是非 1BL/ 1RS品种 ,而且要有较好的HMW GS遗传背景 ;弱筋小麦品种选育也要注意 1BL/
In total, 179 predominant cultivars in recent 30 years and new breeder's lines from main ecological zones of China were examined by SDS PAGE and SCAR for the presence of 1BL/1RS. On average, 38% of Chinese wheats released since 1980 contained 1BL/1RS, however, its frequency differed in different ecological zones, which was 59% for Northern Winter Wheat Zone, 42% for Yellow Huai River Valley Winter Wheat Zone and 20% for both Middle and Low Valley of Yangtze River Winter Wheat Zone and Southwest Winter Wheat Zone. No 1BL/1RS cultivars were found in Northeast Spring Wheat Zone. The cultivars with high dough elasticity were generally not 1BL/1RS translocations. High molecular weight glutenin subunits (HMW GS) may have some complementary effects on the quality defects caused by 1BL/1RS. From breeding point of view, 1BL/1RS parents are generally not recommended in breeding for medium to high dough elasticity, or one of the parents at least should not be 1BL/1RS. Good combination of HMW GS should be presented when 1BL/RS parent is used. The quality defects of 1BL/1RS should also be considered in soft wheat breeding.
出处
《作物学报》
CAS
CSCD
北大核心
2004年第6期531-535,共5页
Acta Agronomica Sinica
基金
国家 8 63计划重大专项 ( 2 0 0 2AA2 0 70 0 3 )
国家 973重点发展研究规划( 2 0 0 2CB1113 0 0 )项目
