Coevolution of coloration and colour vision?
Coevolution of coloration and colour vision?
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DOI：
10.1098/rstb.2016.0338
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发表时间：
2017-07-05
影响因子：
6.3
通讯作者：
Osorio, Daniel
中科院分区：
文献类型：
--
作者：
Lind, Olle;Henze, Miriam J.;Osorio, Daniel
信号和动物感官之间的进化关系具有广泛的意义，对物种形成以及生物交流的有效性和诚实性具有潜在的影响。在这里，我们概述了目前的理解的多样性的颜色视觉在两个对比组：遗传保守的鸟类，和更多变的蝴蝶。颜色信号和视觉的共同进化的证据存在于这两个群体中，但仅限于观察视觉系统之间的表型差异，这可能与着色。在这里，为了说明如何解释这种差异的进化意义，我们使用基于鸟类眼睛的色觉建模来评估三个关键特征的变化的影响：感光器光谱敏感性，油滴色素沉着和不同感光器类型的比例。该模型预测，生理上现实的变化，在任何一个字符将有很小的影响，但在所有三个互补的变化可以大大影响三种类型的自然光谱的可辨别性。这些意见的适应性景观的颜色视觉可能有助于解释一般保守的感光器光谱敏感性的鸟类。这种方法可以扩展到其他类型的眼睛和光谱，为未来的着色和色觉共同进化的工作提供信息。
The evolutionary relationship between signals and animal senses has broad significance, with potential consequences for speciation, and for the efficacy and honesty of biological communication. Here we outline current understanding of the diversity of colour vision in two contrasting groups: the phylogenetically conservative birds, and the more variable butterflies. Evidence for coevolution of colour signals and vision exists in both groups, but is limited to observations of phenotypic differences between visual systems, which might be correlated with coloration. Here, to illustrate how one might interpret the evolutionary significance of such differences, we used colour vision modelling based on an avian eye to evaluate the effects of variation in three key characters: photoreceptor spectral sensitivity, oil droplet pigmentation and the proportions of different photoreceptor types. The models predict that physiologically realistic changes in any one character will have little effect, but complementary shifts in all three can substantially affect discriminability of three types of natural spectra. These observations about the adaptive landscape of colour vision may help to explain the general conservatism of photoreceptor spectral sensitivities in birds. This approach can be extended to other types of eye and spectra to inform future work on coevolution of coloration and colour vision.This article is part of the themed issue 'Animal coloration: production, perception, function and application'.