Fig. 1

The Corydalis pauciovulata plastome. Thick lines on the genome map indicate the inverted repeats (IRa and IRb: 46,060 bp), which separate the genome into small (SSC: 202 bp) and large (LSC: 92,155) single-copy regions. Genes on the inside and outside of the map are transcribed in clockwise and counterclockwise directions, respectively. Asterisks indicate genes transferred from single-copy regions to the IR, and ψ denotes a pseudogene. The red lines on the inner circle indicate tandem repeats. The black and red arrows on the outside of the map indicate contraction and expansion events, respectively. The colored boxes on the map correspond to the locally collinear blocks inferred by Mauve (see Fig. 3). The green lines within the inner circle indicate the positions of the pairs of repeats, with crossed connecting lines denoting reverse repeats