Fig. 1

Plastome gene maps of N. ovatus, N. fortunei, and P. cuspidatus. The plastome map represents all three species since their gene numbers, orders and names are the same, except that N. fortunei has lost the trnR-UCG gene. Genes located outside and within the black circle are transcribed in the clockwise and counterclockwise directions, respectively. Different colors represent genes belonging to different functional groups