In order to provide basis for fine mapping and gene cloning on early aging of flag leaf in wheat, we used 128 RILs from the cross of common wheat (Triticum aestivum L.) between Ningchun 4 and Ningchun 27 as the plant materials in our experiment. QTL mapping for early aging of flag leaf was done by using 307 polymorphic SSR markers and marker encryption was completed by building integration maps. An additive QTL for early aging of flag leaf was detected in flanking marker gwm526~gwm382 on chromosome 2AL, which explained 49.88% phenotypic variance. There were 124 SNP markers between gwm526 and gwm382 marker found by building integration maps.
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WU Hongqi, LIU Tianxiang, LI Tingting, ZHAO Peng, LI Chunlian, WANG Zhonghua, QUAN Li. QTL Mapping for Early Aging of Flag Leaf in Wheat[J]. Acta Botanica Boreali-Occidentalia Sinica,2016,36(10):1962-1967