Fig. 20
A. Two spikes of the near-isogenic line BW906 carrying the wnd1.a (Winding dwarf 1) allele to the left compared to Bowman. The mutant is characterized by a coiled upper portion of the first internode. B. The original wnd1.a mutant to the left carries also the dense spike 1 (dsp1.a) allele which results in a compact spike