Did Trichromatic Color Vision and Red Hair Color Coevolve in Primates?
Did Trichromatic Color Vision and Red Hair Color Coevolve in Primates?
复制标题
DOI：
10.1002/ajp.22099
复制
发表时间：
2013-07-01
影响因子：
2.4
通讯作者：
Bradley, Brenda J.
中科院分区：
文献类型：
--
作者：
Kamilar, Jason M.;Heesy, Christopher P.;Bradley, Brenda J.
在灵长类动物的进化过程中，红色的皮毛和红色的毛发装饰物已经独立地进化了很多次。一般认为，这些红外套表型，如红色皮肤表型，发挥作用，在社会性信号，从而与同种色觉串联进化。本研究探讨了灵长类动物的色觉和皮毛着色的系统发育分布，并提出了以下问题：（1）红色皮毛和三色视觉是否共同进化;或者（2）三色视觉是否首先进化，然后红色皮毛是否作为一种外适应进化？我们收集了142个博物馆研究皮肤的定量，颜色校正的摄影颜色数据，来自92个物种，代表41个属，跨越所有主要的灵长类动物谱系。对于每个物种，我们量化了20个解剖标志处的红/绿色值（来自RGB颜色模型）的比率。对于这些相同的物种，我们编制了色觉类型（常规三色，多态性，常规双色，单色）和变量的数据，潜在的协变与视觉系统（VS）和着色，包括活动模式和身体质量二态性（代理性选择）。我们还考虑了研究皮肤的长期储存是否会影响着色。因此，我们纳入了自标本采集以来的时间作为额外的预测因素。用系统发育广义最小二乘模型分析数据，我们发现灵长类动物中存在的红色毛发的数量与VS的差异有关，但不是预期的方向。令人惊讶的是，与红绿色盲物种相比，三色灵长类物种通常表现出较少的红色毛发。因此，我们的研究结果不支持一般假设，色觉和红色毛皮着色是一个共同进化的产物，在灵长类动物的社会性信号。此外，我们没有发现活动模式、体重二型性或采集后的时间对灵长类动物毛发发红的影响。我们的研究结果对灵长类动物的颜色和视觉系统的进化具有重要意义。Am. J. Primatol. 75：740-751，2013. (c)2012 Wiley Periodicals，Inc.
Reddish pelage and red hair ornaments have evolved many times, independently, during primate evolution. It is generally assumed that these red-coat phenotypes, like red skin phenotypes, play a role in sociosexual signaling and, thus evolved in tandem with conspecific color vision. This study examines the phylogenetic distribution of color vision and pelage coloration across the primate order to ask: (1) did red pelage and trichromacy coevolve; or (2) did trichromacy evolve first, and then subsequently red pelage evolved as an exaptation? We collected quantitative, color-corrected photographic color data for 142 museum research skins from 92 species representing 41 genera spanning all major primate lineages. For each species, we quantified the ratio of Red/Green values (from a RGB color model) at 20 anatomical landmarks. For these same species, we compiled data on color vision type (routine trichromatic, polymorphic, routine dichromatic, monochromatic) and data on variables that potentially covary with visual system (VS) and coloration, including activity pattern and body mass dimorphism (proxy for sexual selection). We also considered whether the long-term storage of research skins might influence coloration. Therefore, we included the time since the specimen was collected as an additional predictor. Analyzing the data with phylogenetic generalized least squares models, we found that the amount of red hair present in primates is associated with differences in VSs, but not in the direction expected. Surprisingly, trichromatic primate species generally exhibited less red hair compared to red-green colorblind species. Thus, our results do not support the general assumption that color vision and red pelage coloration are a coevolutionary product of sociosexual signaling in primates. In addition, we did not find an effect of activity pattern, body mass dimorphism, or time since collection on the redness of primate hair. Our results have important implications for the evolution of primate coloration and visual systems. Am. J. Primatol. 75:740-751, 2013. (c) 2012 Wiley Periodicals, Inc.