Fig. 1

Induced mutations identified in the distal region of the C-terminal domain of RHT-B1. Dark blue arrows indicate the locations of induced amino acid changes in RHT-B1b identified in this study (coordinates based on RHT-B1a, JF930278). The three mutations associated with increased height are highlighted in bold. The RHT-B1bE529K mutation is highlighted in red. Light blue arrows indicate the locations of previously reported induced amino acid changes in RHT-B1c associated with increased height [34, 35]. Dark blue and light blue triangles indicate the positions of the Q64* premature stop codon in RHT-B1b and the 30 amino acid insertion in RHT-B1c, respectively. The PFYRE and SAW motifs [4] are underlined with solid and dashed lines, respectively