Karyograms assembled from mitotic chromosomes of D. elata (a, b), D. bonijesu (c) and D. arifolia (d). Note the distinct chromatin compact level (a, b) showed by the mitotic chromosomes of D. elata. a, b D. elata showed twelve metacentric chromosome pairs (1, 2, 4, 5, 7, 8, 9, 10, 13, 14, 15 and 16), two submetacentric (3 and 6) and two acrocentric pair (11 and 12) c D. bonijesu exhibited four metacentric chromosome pairs (1, 2, 3 and 15), ten submetacentric (4, 5, 6, 8, 9, 10, 11, 12, 13 and 14) and two acrocentric ones (7 and 16) d D. arifolia presented four metacentric chromosome pairs (1, 2, 5 and 10) and twelve submetacentric ones (3, 4, 6, 7, 8, 9, 11, 12, 13, 14, 15 and 16). Bar: 5 μm.