Figure 5From: Evolution of the rpoB-psbZ region in fern plastid genomes: notable structural rearrangements and highly variable intergenic spacersThe putative A-rich stem-loop repeats in the YE-IGS of Equisetum. The small black arrow pairs indicate the conserved pairs of "-35 box" (left) and "-10 box" (right) promoter sequences predicted by BPROM [43].Back to article page