Figure 4.

Partial nucleotide sequence comparison of the 5′-coding regions for four versions of chloroplastic C₄-PPDK cDNA found in M. × giganteus. Nucleotides identical to C4ppdkMg1 are indicated by dots. Missing nucleotides are indicated by a dash and shading. ▾, The splice acceptor sites for the first two introns in C₄-PPDK, as determined by homology with maize. The 7-bp repeat in C4ppdkMg1 and C4ppdkMg2 is shown in white text on a black background. The stop codon generated by the frame-shift deletion in C4ppdkMgpg1 is identified in black text on a dark gray background.