Figure 2.
Merged gene map of four weedy Sonchus chloroplast genomes of two accessions each of S. asper and S. oleraceus that were sequenced in this study. The genes inside and outside of the circle are transcribed in the clockwise and counterclockwise directions, respectively. Genes belonging to different functional groups are shown in different colors. The thick lines indicate the extent of the inverted repeats (IRA and IRB) that separate the genomes into small single copy (SSC) and large single copy (LSC) regions. Large inversion and smaller inversion nested within the large inversion that is unique in Asteraceae are indicated with black lines outside the gene map.