Fig. 7
Accordion rachis mutants have greatly elongated rachis internodes causing a wavy or undulating form. All photos show mutant acr1.a. A. Mutant to the left, Bowman to the right. B. Elongation of the rachis internodes is associated with slightly elongated glumes and the deficiens-like spike phenotype. C. Spikelets have been removed to show the wavy form of the spike