Fig. 2

Comparative gene structure and arrangement in IR regions of Rhamnaceae, C. sativa and F. religios. A Consensus gene arrangement within an IRb and a reversed IRa. The rps19 and ycf1 genes (red underline) are located at the borders of IR regions, see Additional file 1 Fig. S2 for gene arrangement in each organism. B Segments of rps19 in LSC (orange) and IR regions (blue), and C Segments of ycf1 in SSC (orange) and IR regions (blue). Each bar chart shows the sizes of a gene (bp) in each region calculated from the IR boundary. Total gene sizes are shown in the parenthesis. IR boundaries (A, B, C and D) are defined as in Fig. 1. The outgroup of phylogenetic analysis includes C. sativa NC_027223 and F. religiosa NC_033979. D Assembly error in SSC of R. crenata LC635131. Genes are color coded by functional categories