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Comparison of junctions between the large single-copy (LSC), small single-copy (SSC) and inverted repeat (IR) regions among 10 chloroplast genomes, including four Stephania plants, one closely related species in family of Menispermaceae, and five species from Berberidaceae, Ranunculaceae and Papaveraceae. The numbers of above the gene features indicate the distance between the ends of genes and border sites
