Sexual selection drives the evolution of wing interference patterns

Sexual selection drives the evolution of wing interference patterns
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性选择驱动翅膀干涉模式的进化

DOI:
10.1101/497115
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发表时间:
2018
期刊:
--
影响因子:
--
通讯作者:
Hawkes M
Hawkes M
中科院分区:
--
文献类型:
--
作者:
Hawkes M

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许多昆虫看似透明的翅膀最近被发现显示出戏剧性的结构颜色。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,但对形成它们的进化过程知之甚少。此外,现有的研究由于分析wip而受到限制,没有适当考虑观众的色觉是如何感知它们的。在这里,我们使用多光谱数字成像和果蝇视觉模型来比较雄性和雌性果蝇模拟物的WIPs,这些模拟物来自于68代被迫进行或不进行性选择进化的复制种群。我们首次展示了在果蝇视觉中建立的WIPs模型是在性选择的反应中进化的,并证实了WIPs与男性的性吸引力有关。这些发现为果蝇求偶行为的描述增添了新的元素,并证实了翅膀的颜色是通过性选择而进化的。
The seemingly transparent wings of many insects have recently been found to display dramatic 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. Additionally, existing research has been restricted by analysing WIPs without due consideration of how they are actually perceived by the viewers’ colour vision. Here, we use multispectral digital imaging and a model ofDrosophilavision to compare WIPs of male and femaleDrosophila simulansfrom replicate populations forced to evolve with or without sexual selection for 68 generations. We show for the first time that WIPs modelled inDrosophilavision evolve in response to sexual selection, and confirm that WIPs correlate with male sexual attractiveness. These findings add a new element to the otherwise well describedDrosophilacourtship display and confirm that wing colours evolve through sexual selection.
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