Fig. 4

QTL position on chromosome 7A for spike length (SL) in the common wheat population and ZX-RIL population. a Chromosome location of QSl-7A in the 191 common wheat accessions. b QTL position for SL in RIL population of “Zhongmai 175×Xiaoyan 60”. c LD plot of the QSl-7A in the 191 common wheat accessions and the QTL for SL in RIL population of “Zhongmai 175 × Xiaoyan 60”