The evolution of male and female mating preferences in Drosophila speciation*
The evolution of male and female mating preferences in Drosophila speciation*
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DOI：
10.1111/evo.13752
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发表时间：
2019-09-01
期刊：
影响因子：
3.3
通讯作者：
Peterson，Elizabeth K.
中科院分区：
文献类型：
--
作者：
Yukilevich，Roman;Peterson，Elizabeth K.
雄性和雌性交配偏好在造成物种间性隔离方面的相对重要性仍然是物种形成中一个尚未解决的主要问题。尽管以前的工作表明，男性求偶偏见和/或女性交配偏见的同种发生在许多类群，本研究是第一个大规模的作品，研究他们的相对分歧之一。为了实现这一目标，我们使用了来自文献的数据，并在66对果蝇物种中进行了实验。我们的研究结果表明，雄性和雌性的择偶偏好在果蝇中都是普遍存在的，但在很大程度上是独立进化的，这表明了不同的潜在进化和遗传机制。此外，它们的相对分歧强烈地依赖于物种的地理关系。在异地物种之间，雄性求偶和雌性交配偏好以非常相似的速度分化，随着分化时间的推移近似线性地演变。与此形成鲜明对比的是，在同域物种对之间，女性偏好的分歧比男性偏好快得多，并且是同域和生殖特征置换（RCD）中增强性隔离的唯一驱动因素。这一结果不仅表明，女性是主要负责的过程，如强化，但它也意味着，进化女性的喜好可能会减少选择进一步分化的男性求偶偏好在同域。
The relative importance of male and female mating preferences in causing sexual isolation between species remains a major unresolved question in speciation. Despite previous work showing that male courtship bias and/or female copulation bias for conspecifics occur in many taxa, the present study is one of the first large-scale works to study their relative divergence. To achieve this, we used data from the literature and present experiments across 66Drosophilaspecies pairs. Our results revealed that male and female mate preferences are both ubiquitous inDrosophilabut evolved largely independently, suggesting different underlying evolutionary and genetic mechanisms. Moreover, their relative divergence strongly depends on the geographical relationship of species. Between allopatric species, male courtship and female copulation preferences diverged at very similar rates, evolving approximately linearly with time of divergence. In sharp contrast, between sympatric species pairs, female preferences diverged much more rapidly than male preferences and were the only drivers of enhanced sexual isolation in sympatry and Reproductive Character Displacement (RCD). Not only does this result suggest that females are primarily responsible for such processes as reinforcement, but it also implies that evolved female preferences may reduce selection for further divergence of male courtship preferences in sympatry.