Table 1.
Summary of analysis
| Clade | State 1: # species in dataset (avg # tree-matched species) | State 2: # species in dataset (avg # tree-matched species) | State 3: # species in dataset (avg # tree-matched species) | Prob. of higher transition rate |
|---|---|---|---|---|
| 1. Transitions between gonochorism and hermaphroditism | ||||
| Fish | Gonochorism: 371 (178.8) | Hermaphroditism: 309 (165) | N/A | 0.949 gonochorism to hermaphroditism |
|
| ||||
| 2. Transitions between ESD and GSD | ||||
| Fish | ESD: 61 (22) | GSD: 310 (156.8) | N/A | 0.984 ESD to GSD |
| Squamates | ESD: 49 (22) | GSD: 389 (279) | N/A | 1.0 ESD to GSD |
|
| ||||
| 3. Transitions between homomorphic and heteromorphic sex chromosomes | ||||
| Fish | Homomorphic: 145 (82.2) | Heteromorphic: 126 (64.1) | N/A | 0.699 heteromorphic to homomorphic |
| Amphibians | Homomorphic: 94 (60.9) | Heteromorphic: 45 (31.1) | N/A | 0.697 heteromorphic to homomorphic |
|
| ||||
| 4. Transitions between homomorphic vs. heteromorphic sex chromosomes and ESD | ||||
| Fish | Homomorphic: 137 (76.7) | Heteromorphic: 125 (64.8) | ESD: 52 (16.4) | 0.437 heteromorphic to ESD |
|
| ||||
| 5. Transitions between XY and ZW sex determination systems | ||||
| Fish | XY: 204 (110.5) | ZW: 92 (47) | N/A | 0.999 ZW to XY |
| Squamates | XY: 116 (88) | ZW: 231 (160) | N/A | 0.779 ZW to XY |
| Amphibians | XY: 67 (46.2) | ZW: 32 (28) | N/A | 0.560 ZW to XY |