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Title Utilization of 1BL/1RS translocation in wheat breeding in China
 
Names Zhou Yang
He Zhonghu
Zhang, G.S.
Lanqin Xia
Xinmin Chen
Gao, Y.C.
Jing, Z.B.
Yu, G.J.
Date Issued 2004 (iso8601)
Abstract In total , 179 predominant cultivars in recent 30 years and new breeder’s lines from main ecological zones of China were examined by SDS2PAGE 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 Yellow2Huai 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 ( HMW2GS) 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 elas2 ticity , or one of the parents at least should not be 1BL/ 1RS. Good combination of HMW2GS sho ld be presented when 1BL/ RS parent is used. The quality defects of 1BL/ 1RS should also be considered in soft wheat breeding.
Genre Article
Access Condition Open Access
Identifier 0496-3489