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Somatic chromosomes at metaphase of Begonia montaniformis (Peng 24610, HAST). A–D, micrographs; arrows indicate a pair of longer metacentric chromosomes. E–H, somatic chromosomes serially arranged by chromosome length and centromere position. A, E, 2n = 30; B, F, 2n = 31; C, G, 2n = 32; D, H, 2n = 33. Scale bars = 5 μm (A–D); 2 μm (E–H).
