CAPES Foundation, Ministry of Education of Brazil, Brasília, DF, 70040-020, Brazil.
School of Environment and Life Sciences, Peel Building, University of Salford Manchester, Salford, M5 4WT, UK.
Sci Rep. 2017 Aug 10;7(1):7737. doi: 10.1038/s41598-017-08143-2.
New World primates feature a complex colour vision system. Most species have polymorphic colour vision where males have a dichromatic colour perception and females can be either dichromatic or trichromatic. The adaptive value of high allelic diversity of opsins, a light sensitive protein, found in primates' eyes remains unknown. Studies revealing the allelic diversity are important as they shed light on our understanding of the adaptive value of differences in the colouration of species and their ecologies. Here we investigate the allelic types found in Pitheciidae, an understudied New World primate family, revealing the diversity of medium/long wavelength sensitive opsins both in cryptic and conspicuous species of this primate family. We found five alleles in Cacajao, six in Callicebinae (i.e. Plecturocebus, Cheracebus, and Callicebus), four in Chiropotes, and three in Pithecia, some of them reported for the first time. Both cryptic and conspicuous species in this group presented high allelic diversity.
新世界灵长类动物具有复杂的色觉系统。大多数物种具有多态色觉，其中雄性具有二色视觉，而雌性可以是二色性或三色性。在灵长类动物眼睛中发现的光敏感蛋白视蛋白的高等位基因多样性的适应价值仍然未知。揭示等位基因多样性的研究很重要，因为它们阐明了我们对物种颜色差异及其生态的适应价值的理解。在这里，我们研究了研究较少的新世界灵长类动物家族 Pitheciidae 中发现的等位基因类型，揭示了这种灵长类动物家族中隐蔽和显眼物种中中/长波长敏感视蛋白的多样性。我们在 Cacajao 中发现了 5 种等位基因，在 Callicebinae（即 Plecturocebus、Cheracebus 和 Callicebus）中发现了 6 种，在 Chiropotes 中发现了 4 种，在 Pithecia 中发现了 3 种，其中一些是首次报道。该组中的隐蔽和显眼物种都具有高度的等位基因多样性。
