Eberhard William G
Smithsonian Tropical Research Institute, and Escuela de Biología, Universidad de Costa Rica, Ciudad Universitaria, San Pedro, Costa Rica.
Genetica. 2010 Jan;138(1):5-18. doi: 10.1007/s10709-009-9358-y.
Many hypotheses have been proposed to explain why male intromittent genitalia consistently tend to diverge more rapidly than other body traits of the same individuals in a wide range of animal taxa. Currently the two most popular involve sexual selection: sexually antagonistic coevolution (SAC) and cryptic female choice (CFC). A review of the most extensive attempts to discriminate between these two hypotheses indicates that SAC is not likely to have played a major role in explaining this pattern of genital evolution. Promising lines for future, more direct tests of CFC include experimental modification of male genital form and female sensory abilities, analysis of possible male-female dialogues during copulation, and direct observations of genital behavior.
人们提出了许多假说，以解释为何在众多动物分类群中，雄性插入式生殖器总是比同一物种的其他身体特征分化得更快。目前，最流行的两种假说是性选择：性对抗协同进化（SAC）和隐性雌性选择（CFC）。对区分这两种假说的最广泛尝试进行的综述表明，SAC在解释这种生殖器进化模式方面不太可能发挥主要作用。未来对CFC进行更直接测试的可行方向包括对雄性生殖器形态和雌性感官能力进行实验性改变、分析交配过程中可能存在的雌雄对话，以及直接观察生殖器行为。
