Color vision polymorphism in wild capuchins (Cebus capucinus) and spider monkeys (Ateles geoffroyi) in Costa Rica
Color vision polymorphism in wild capuchins (Cebus capucinus) and spider monkeys (Ateles geoffroyi) in Costa Rica
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DOI：
10.1002/ajp.20199
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发表时间：
2005-12-01
影响因子：
2.4
通讯作者：
Kawamura, S
中科院分区：
文献类型：
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作者：
Hiramatsu, C;Tsutsui, T;Kawamura, S
由于红绿视觉色素基因的等位基因变异，新世界猴子在表现出色觉多态方面是独一无二的。这使得这些猴子成为从分子和生态角度研究视觉系统适应性进化的极佳对象。然而，这些色素在自然种群中的等位基因频率还没有得到很好的调查。作为了解视觉和行为之间关系的第一步，我们通过分析居住在哥斯达黎加圣罗莎国家公园的两组白面卷尾猴(Cebus Capucinus)和一组黑手蜘蛛猴(Ateles Geoffroyi)的粪便DNA，进行了颜色视觉分型。所有颜色类型的猴子都被单独识别出来。在细毛委陵菜和黄曲霉中，我们分别发现了三种和两种色素类型，并且发现产生两种Ateles色素之一的光谱机制是新的。在CEBUS组和Ateles组中，所有等位基因都存在，而在另一组CEBUS组中，仅发现两个等位基因，其中一个等位基因占主导地位。这可能是由于近亲交配的影响，表明野生种群可以表现出不同的等位基因组成。这一结果还表明，色觉多态很容易受到自然因素的扭曲，如近亲交配、倾斜种群结构等。上午好。J.Primatol。67：447-461,2005。(C)2005年Wiley-Liss，Inc.
New World monkeys are unique in exhibiting a color vision polymorphism due to an allelic variation of the red-green visual pigment gene. This makes these monkeys excellent subjects for studying the adaptive evolution of the visual system from both molecular and ecological viewpoints. However, the allele frequencies of the pigments within a natural population have not been well investigated. As a first step toward understanding the relationship between vision and behavior, we conducted color vision typing by analyzing fecal DNA from two wild groups of white-faced capuchin monkeys (Cebus capucinus) and one group of black-handed spider monkeys (Ateles geoffroyi) inhabiting Santa Rosa National Park of Costa Rica. All color-typed monkeys were individually identified. In C. capucinus and A. geoffroyi we found three and two pigment types, respectively, and the spectral mechanism that created one of the two Ateles pigments was found to be novel. In one Cebus group and the Ateles group, all alleles were present, whereas in the other Cebus group only two alleles were found, with one allele predominating. This was likely due to the effect of close inbreeding, indicating that wild populations can exhibit a variety of allele compositions. This result also suggests that the color vision polymorphism can be easily distorted by natural factors, such as inbreeding, skewing the population structure. Am. J. Primatol. 67:447-461, 2005. (c) 2005 Wiley-Liss, Inc.