Sexual selection drives the evolution of male wing interference patterns
Sexual selection drives the evolution of male wing interference patterns
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DOI：
10.1098/rspb.2018.2850
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发表时间：
2019-05-22
影响因子：
4.7
通讯作者：
Troscianko, J.
中科院分区：
文献类型：
--
作者：
Hawkes, M. F.;Duffy, E.;Troscianko, J.
最近发现许多昆虫看似透明的翅膀显示出意想不到的结构色彩。这些结构颜色（翅膀干涉图案：WIP）可能与物种识别和配偶选择有关，但人们对塑造它们的进化过程知之甚少。此外，迄今为止对 WIP 的调查尚未充分考虑观众的色觉如何实际感知它们。在这里，我们使用多光谱数字成像和果蝇视觉模型来比较来自复制种群的雄性和雌性模拟果蝇的 WIP，这些种群被迫在有或没有性选择的情况下进化了 68 代。我们证明，以果蝇视觉为模型的 WIP 会响应性选择而进化，并提供证据证明 WIP 与男性性吸引力相关。这些发现为果蝇求偶展示增添了一个新元素，并证实翅膀颜色是通过性选择进化的。
The seemingly transparent wings of many insects have recently been found to display unexpected structural coloration. These structural colours (wing interference patterns: WIPs) may be involved in species recognition and mate choice, yet little is known about the evolutionary processes that shape them. Furthermore, to date investigations of WIPs have not fully considered how they are actually perceived by the viewers' colour vision. Here, we use multispectral digital imaging and a model of Drosophila vision to compare WIPs of male and female Drosophila simulans from replicate populations forced to evolve with or without sexual selection for 68 generations. We show that WIPs modelled in Drosophila vision evolve in response to sexual selection and provide evidence that WIPs correlate with male sexual attractiveness. These findings add a new element to the otherwise well-described Drosophila courtship display and confirm that wing colours evolve through sexual selection.