First images of the Myrsine chromosomes. Karyotype of a M. parvifolia individual with 2n = 45 (a) and another with 2n = 46 (b) chromosomes. Note the different levels of chromatin compaction between the chromosomes of the two karyotypes. The distinct chromatin compact level was highlighted in (c), where the same submetacentric chromosome of M. parvifolia (above) and the same acrocentric chromosome of M. coriacea (below) were taken from two different prometaphases (I and II) and one metaphase (III). Bar = 5 µm.