Table 2.
The diversity of chromosome numbers and sex chromosome mechanisms, and modal karyotypes in 23 families of Odonata: a summary.
| Taxa | N of species/ genera studied | Male karyotypes | Modal karyotype | N of species/genera with modal karyotype (occurrence in percent) | |
|---|---|---|---|---|---|
| (N of species/genera described*) | |||||
| Anisozygoptera | |||||
| Epiophlebioidea | Epiophlebiidae (4/1) | 1/1 | 25, X0 | 24A + X | 1 (100) / 1 (100) |
| Anisoptera | |||||
| Aeshnoidea | Aeshnidae (456/51) | 58/18 | 13, X0; 14, neo-XY; 15, X0; 16, neo-XY; 19, X0; 21, X0; 24, neo-XY; 25, X0; 26, neo-XY; 27, X0 | 26A + X | 44 (76) / 14 (78) |
| Petaluroidea | Petaluridae (10/5) | 4/3 | 17, X0; 19, X0; 25, X0 | 16A + X | 3 (75) / 2 (67) |
| Gomphoidea | Gomphidae (980/87) | 66/31 | 12, neo-neo-XY; 21, X0; 22, neo-XY; 23, X0; 24, neo-XY; 25, X0 | 22A + X | 57 (86) / 28 (90) |
| Libelluloidea | Macromiidae (125/4) | 6/3 | 25, X0 | 24A + X | 6 (100) / 3 (100) |
| Corduliidae (154/20) | 23/7 | 10, neo-XY; 11, X0; 13, X0; 14, neo-XY, 20, XY; 21, X0; 25, X0; 26, neo-XY; 27, X0 | 24A + X | 19 (83) / 6 (86) | |
| Libellulidae (1037/142) | 255/59 | 6, neo-XY; 6 neo-XY; 8, neo-XY; 10, neo-XY; 12, neo-XY; 17, X0; 21, X0; 22, neo-XY; 23, X0; 23, X1X2Y; 24, neo-XY; 25, X0; 27, X0; 28, neo-XY; 29, X0; 41, X0 | 24A + X | 227 (89) / 57 (97) | |
| Cordulegastroidea | Cordulegastridae (46/3) | 9/3 | 23, X0; 25, X0 | 24A + X | 8 (89) / 3 (100) |
| Chlorogomphidae (47/3) | 1/1 | 25, X0 | 24A + X | 1 (100) / 1 (100) | |
| Zygoptera | |||||
| Lestoidea | Lestidae (151/9) | 20/5 | 19, X0; 21, X0; 25, X0 | 24A + X | 18 (90) / 5 (100) |
| Synlestidae (39/9) | 1/1 | 25, X0 | 24A + X | 1 (100) / 1 (100) | |
| Platystictoidea | Platystictidae (224/6) | 4/3 | 25, X0 | 24A + X | 4 (100) / 3 (100) |
| Calopterygoidea | Calopterygidae (185/21) | 20/8 | 23, X0; 25, X0; 27, X0 | 24A + X | 20 (100) / 8 (100) |
| Chlorocyphidae (144/19) | 9/6 | 23, X0; 25, X0 | 22A + X | 8 (89) / 5 (84) | |
| Polythoridae (59/7) | 2/2 | 23, X0 | 22A + X | 2 (100) / 2 (100) | |
| Euphaeidae (68/12) | 4/4 | 25, X0 | 24A + X | 4 (100) / 4 (100) | |
| Megapodagrionidae (296/42) | 3/2 | 25, X0 | 24A + X | 3 (100) / 2 (100) | |
| Heteragrionidae (57/2) | 2/1 | 25, X0 | 24A + X | 2 (100) / 1 (100) | |
| Philogeniidae (40/2) | 1/1 | 25, X0 | 24A + X | 1 (100) / 1 (100) | |
| Hypolestidae (6/4) | 1/1 | 17, X0 | 16A + X | 1 (100) / 1 (100) | |
| Coenagrionoidea | Platycnemididae (404/40) | 22/8 | 25, X0 | 24A + X | 19 (100) / 7 (100) |
| Coenagrionidae (1267/114) | 92/28 | 12, neo-XY; 25, X0; 27, X0; 29, X0; 30, neo-XY; 37, X0 | 26A + X | 81 (89) / 26 (90) | |
| Protoneuridae (260 / 25) | 3/3 | 25, X0; 27, X0 | 26A + X | 2 (70) / 2 (70) | |
*Taken from Dijkstra et al. 2013