However, outcrossing may be abandoned in favor of parthogenesis or selfing (which retain the advantage of meiotic recombinational repair) under conditions in which the costs of mating are very high.

• 然而，在交配代价很高的条件下，异型杂交可能被摒弃，从而有利于孤雌生殖或自交（它们保留了减数分裂重组修复的好处）。