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The evolution of reproductive isolation through sexual conflict

机译:性冲突导致生殖隔离的演变

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Classical population-genetics theory suggests that reproductive isolation will evolve fastest in small isolated populations(1). In contrast, recent theory suggests that divergence should occur fastest in larger allopatric populations(2). The rationale behind this is that sexual conflict, potentially the strongest driver of speciation, is greater in larger, higher-density populations. This idea is highly controversial(3) and has little experimental support(4,5). Here we show, using replicate fly populations with varying levels of sexual conflict, that larger, more dense populations with more sexual conflict diverged to a greater degree than small populations with relaxed conflict. This result strongly suggests that speciation can occur rapidly in large populations through increased sexual conflict. [References: 28]
机译:经典的人口遗传学理论认为,生殖隔离将在较小的隔离人群中发展最快(1)。相反,最近的理论表明,在较大的异族人群中发散最快(2)。其背后的理由是,性冲突是潜在的物种形成的最强驱动力,在较大的高密度人群中更为严重。这个想法极富争议(3),几乎没有实验性支持(4,5)。在这里,我们表明,使用具有不同性冲突水平的复制蝇种群,与具有宽松冲突的小型种群相比,具有更多性冲突的更大,更密集的种群之间的差异更大。这一结果有力地表明,通过增加性冲突,物种形成可以在大量人群中迅速发生。 [参考:28]

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