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Chloroplast genome maps of C. gigantea (A), C. bicolor (B) and X. sagittifolium (C) with annotated genes. Genes inside the circle are transcribed clockwise, while those outsides are counterclockwise. Genes are color coded according to functional groups. Boundaries of the small single copy (SSC) and large single copy (LSC) regions and inverted repeat (IRa and IRb) regions are denoted in the inner circle for each species
