The color vision typing using fecal DNA of New World monkeys and the analysis of vision-behavior relatedness

新世界猴粪便DNA色觉分型及视觉行为相关性分析

基本信息

批准号：
16405015
负责人：
KAWAMURA Shoji
金额：
$ 8.45万
依托单位：
The University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2006
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16405015/
关键词：
color vision visual pigment opsin New World monkeys evolution primates international collaboration Costa Rica コスタリカ:カナダ:イギリスオマキザルクモザル

项目摘要

Color vision polymorphism in New World monkeys results from allelic variation of the single-locus middle-to-long-wave-sensitive (M/LWS) opsin gene residing on the X-chromosome. This polymorphism is trans-specific, and thus generally believed to be maintained by some form of balancing selection. However, the presence of balancing selection has not been tested rigorously by population genetic parameters. At the level of a social group, which usually comprises no more than a few dozen individuals, presence or absence of color vision polymorphism is not well assessed. In addition, the advantage of trichromacy to primates is not entirely clear in the Neotropic environment, since many of the food resources that are available throughout the year appear cryptic to human observers.To investigate the mechanism behind the persistence of color vision polymorphism in New World monkeys, we examined free-ranging populations of white-faced capuchin monkeys (Cebus capucinus) and black-handed spider mon … More keys (Ateles geoffroyi) inhabiting Santa Rosa National Park, Costa Rica. We took a three-pronged approach : (1) assessment of color vision polymorphism in social groups by genotyping M/LWS opsin alleles using fecal DNA, (2) tests of the neutral hypothesis by evaluating nucleotide diversity of the M/LWS opsin gene, and (3) assessment of the behavioral significance of color vision variation by looking for correlations between color vision type and behavioral patterns such as foraging.We found that : (1) color vision polymorphism is indeed present in both capuchin and spider monkey groups, each comprising only 〜20 individuals, but with various allele compositions between groups and between species, (2) Tajima's D statistic is significantly positive for M/LWS opsin gene but it is not for the neutral controls, and (3) dichromatic capuchins are more efficient at insect foraging, and hue of fruits may not be a critical cue for trichromatic spider monkeys. These results indicate that the high level of color vision polymorphism can be explained only by some form of balancing selection, which would likely include factors other than heterozygote (= trichromat) advantage. Less

新世界猴子中的色觉多态性是由位于X染色体上的单位 - 敏感敏感（M/LWS）Opsin基因的单位量表变异引起的。这种多态性是反式特异性的，因此普遍认为通过某种形式的平衡选择来维持。但是，尚未通过人口遗传参数严格测试平衡选择的存在。在一个通常不超过几十个人的社会群体的水平上，没有很好地评估色觉多态性的存在或不存在。此外，在新型环境中，三色粒度对私人的优势并不完全清楚，因为全年可用的许多食品似乎对人类观察者来说似乎是加密的。要研究新世界猴子色彩视觉多态性的持续性的机制，我们检查了更多的辣椒（Ceuchin Monkeys）（Ceuchin Monkeys）（Ceuchin Monkeys）（Ceuchin Monkeys）（CEUCHIN MONKEYS）（CE）（Ceuchin Monkeys）（Ce） Geoffroyi）居住在哥斯达黎加的圣罗莎国家公园。我们采用了一种三个规定的方法：（1）通过使用粪便DNA进行基因分型M/LWS Opsin等位基因的基因分型评估社会群体的色觉多态性，（2）通过评估M/LWS OPSIN基因的核肽多样性和（3）对颜色构想的构想变化的核苷多样性，以及（3）对这些构想的构想变化的构想，并（3）测试中性假设的中性假设，以及（3）构想的构想。 foraging.We found that: (1) color vision polymorphism is indeed present in both capuchin and spider monkey groups, each completing only ~20 individuals, but with various allele compositions between groups and between species, (2) Tajima's D statistic is significantly positive for M/LWS opsin gene but it is not for the neutral controls, and (3) dichromatic capuchins are more efficient at insect foraging, and hue of fruits对于三色蜘蛛猴子来说，可能不是关键的提示。这些结果表明，高水平的色觉多态性只能通过某种形式的平衡选择来解释，这可能包括杂合子（= trichromat）优势以外的其他因素。较少的