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Collaborative Research: Physiological genomics of color vision in butterflies

合作研究：蝴蝶色觉的生理基因组学

基本信息

批准号：
1257627
负责人：
Adriana Briscoe
金额：
$ 44.06万
依托单位：
University of California-Irvine
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2013
资助国家：
美国
起止时间：
2013-05-15 至 2017-03-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1257627&HistoricalAwards=false
关键词：
Collaborative Research Physiological genomics color

项目摘要

Many toxic animals have bright warning colors to deter predators such as birds and lizards. Often a group of unrelated species mimic one another by sharing a single defensive pattern. For insects such as butterflies that use wing patterns to recognize their own species, especially when they are choosing mates, mimics of different species might be confusing. This group has recently found that the color vision of toxic passion vine or Heliconius butterflies of South and Central America is able to distinguish the Heliconius yellow wing pigments from those of their mimics, whereas the two types of yellow pigment produce colors that are indistinguishable for bird color vision. This project will investigate the differences in color vision between species and sexes of Heliconius butterflies, using molecular, anatomical, biochemical, electrophysiological and next-generation sequencing methods. The resulting data and models of color vision will provide evidence on how color is used for both choosing mates and finding leaves on which to lay eggs and flowers to feed. This study will make predictions about Heliconius color vision that can be tested behaviorally. This research will reveal in unprecedented detail the evolution of color vision within a group of closely-related animals in relation to the signals they encounter in their daily lives. Whereas much is know about sexual differences in animal coloration, virtually nothing is known about sexual differences in color vision. This is a major gap that can now be addressed. Spectral data resulting from this project will be deposited in the Dryad Data Repository http://datadryad.org/ and made freely available to the public. There will be training of a postdoc, graduate and undergraduate students in intracellular recording and anatomical methods, as well as in the analysis of next-generation sequencing data. This research group will recruit undergraduate math and chemistry majors to analyze color reflectance spectra.

许多有毒动物具有明亮的警告颜色，以阻止鸟类和蜥蜴等掠食者。通常，一群不相关的物种通过共享单一的防御模式来模仿彼此。对于蝴蝶等利用翅膀图案来识别自己物种的昆虫来说，尤其是在选择配偶时，不同物种的模仿可能会令人困惑。该小组最近发现，南美洲和中美洲的有毒西番莲藤或赫利康蝴蝶的色觉能够将赫利康黄翅色素与其模仿者的色素区分开来，而这两种黄色色素产生的颜色对于鸟类色觉来说是无法区分的。该项目将利用分子、解剖、生物化学、电生理学和下一代测序方法研究Heliconius蝴蝶的物种和性别之间色觉的差异。由此产生的色觉数据和模型将提供证据，说明颜色如何用于选择配偶以及寻找产卵和花朵的叶子。这项研究将对 Heliconius 色觉进行预测，并可以通过行为进行测试。这项研究将以前所未有的细节揭示一组密切相关的动物的色觉进化与它们在日常生活中遇到的信号的关系。尽管人们对动物体色的性别差异了解甚多，但实际上对色觉的性别差异却一无所知。这是一个现在可以解决的重大差距。该项目产生的光谱数据将存储在 Dryad 数据存储库 http://datadryad.org/ 中，并免费向公众开放。将对博士后、研究生和本科生进行细胞内记录和解剖方法以及下一代测序数据分析方面的培训。该研究小组将招募数学和化学专业的本科生来分析颜色反射光谱。