Fig. 1

Chloroplast genome structure of Impatiens species (I. chlorosepala, I. fanjingshanica, I. guizhouensis, I. linearisepala, I. loulanensis, and I. stenosepala). Genes shown outside the circles are transcribed clockwise, while those drawn inside are transcribed counter clockwise. Genes are color-coded according to functional group (see the key at the down left). The positions of the long single-copy (LSC), short single-copy (SSC), and inverted repeat (IR: IRA and IRB) regions are shown in the inner circles