DISSERTATION RESEARCH: Pollinator-mediated Evolution and Diversification of Andean Solanaceae

论文研究：传粉媒介介导的安第斯茄科进化和多样化

• 批准号: 0309310
• 负责人: David Baum
• 金额: $ 1.16万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-05-15 至 2006-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0309310&HistoricalAwards=false
• 关键词: DISSERTATION; RESEARCH; Pollinator; mediated; Evolution

A grant has been awarded to Dr. David Baum and Ms. Stacey Smith at the University of Wisconsin-Madison to investigate the role of habitat transitions and pollination systems in the diversification of flower form and color in Iochrominae, a group of 27 Andean species in the potato family, Solanaceae. Specifically, the research will examine the hypothesis that transitions to high-elevation environments are correlated with shifts to hummingbird pollination and the evolution of colorful, tubular flowers. Iochrominae occur at wide range of elevations, and they display a great diversity of floral morphologies and pollination systems, making them an ideal group in which to investigate this hypothesis. The study will be divided into three parts: reconstruction of the evolutionary history of Iochrominae, field studies of pollination, and biochemical analysis of floral pigmentation. Together, these components will make it possible to assess the extent to which elevational transitions are correlated with shifts in pollination systems and floral evolution. Considering that topographical variation combined with plant-animal coevolution are thought to be responsible for the immense floristic diversity of the Neotropics, Iochrominae may serve as a case study of the process of adaptive radiation and diversification that has taken place in multitudes of neotropical lineages of flowering plants. Furthermore, this project will foster collaboration between North American and Latin American botanical institutions in trying to document and understand the floristic diversity of the Andes and the processes that have given rise to it.

威斯康星大学麦迪逊分校的大卫鲍姆博士和斯泰西·史密斯女士获得了一笔赠款，用于调查栖息地转变和授粉系统在Iochrominae花的形状和颜色多样化中的作用，Iochrominae是一组马铃薯科的27种安第斯物种。具体来说，这项研究将检验这样一个假设，即向高海拔环境的过渡与向蜂鸟授粉的转变以及彩色管状花的进化有关。 Iochrominae发生在广泛的海拔范围内，他们显示了巨大的多样性的花形态和授粉系统，使他们成为一个理想的群体，在其中调查这一假设。该研究将分为三个部分：Iochrominae进化历史的重建、授粉的实地研究和花色素沉着的生化分析。总之，这些组成部分将使人们有可能评估海拔过渡与授粉系统和花的演变的变化相关的程度。考虑到地形变化与植物-动物协同进化相结合被认为是负责新热带区系的巨大的植物多样性，Iochrominae可能作为一个案例研究的过程中发生的适应性辐射和多样化，在众多的新热带谱系的显花植物。此外，该项目将促进北美和拉丁美洲植物学机构之间的合作，努力记录和了解安第斯山脉的植物多样性及其形成过程。