Figure 8

Comparison of the chloroplast genomes of Salvia species in the three main distribution centers. Circles from inner to outer represent CPs of species from CAM (S. yangii, S. nilotica, S. officinalis, S. deserta and S. sclarea, the red and pink circles), species from CASA (S. karwinskii, S. azurea, S. pansamalensis, S. tubifera, and S. iodantha, the blue circles) and species from EA (S. umbratica, S. meiliensis, S. daiguii, S. miltiorrhiza, and S. nipponica, the orange circles). The CP of S.yangii (the red circle) was used as reference for gene annotation. The black numbers on the colored circles marked the distribution-center specific missing regions of CPs of species compared to the reference.