Table 3. Numbers of species pairs tested since 1996 in which explanatory theories for Haldane's Rule have been explicitly invoked.
Dominance | Faster male | Faster heterogametic sex | Faster X (or Z) | X–Y (or W–Z) interactions | X (or Z)-autosome interactions | |
---|---|---|---|---|---|---|
Male heterogametic | 12 | 7 | 1 | 6 | 2 | 4 |
Female heterogametic | 70 | 0 | 34 | 1 | 0 | 1 |