Dissertation Research: Understanding the origin and rapid diversification of the genus Anthurium (Araceae) integrating molecular phylogenetics, morphology and anatomy

论文研究：结合分子系统发育学、形态学和解剖学了解红掌属（天南星科）的起源和快速多样化

• 批准号: 0709851
• 负责人: Peter Stevens
• 金额: $ 1.08万
• 依托单位: University of Missouri-Saint Louis
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-06-15 至 2008-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0709851&HistoricalAwards=false
• 关键词: Dissertation; Research; Understanding; origin; rapid

Epiphytes and herbs from the lower slopes of the northern Andes and southern Central America comprise about half of Neotropical plant diversity. These groups have undergone recent explosive speciation and adaptive radiation apparently in response to dramatic changes in geology and climate in the last 6 million years. The primarily epiphytic genus Anthurium (Araceae, "philodendron family"), with 800 species distributed from Costa Rica to Ecuador, will be used to test this hypothesis of rapid and recent speciation. This project will analyze molecular, morphological, geographic and fossil data from Anthurium and closely related genera to examine the evolutionary relationships, biogeographic history and timing of diversification in the group.Studying the pattern of diversification of recent and rapidly evolving plant groups will improve our understanding of the tempo and mode of evolutionary change of the Neotropical flora and contribute to resolving the mystery of its extraordinary species richness. This study will enhance systematic knowledge of an ecologically and horticulturally important plant group and will allow integration of systematic research with study of fossils, distribution and evolution. This project will include student training, building a collaborative network between specialists, botanical gardens and ornamental plant growers; and disseminating results through conferences, publications and websites.

来自北方安第斯山脉和中美洲南部低坡的附生植物和草本植物约占新热带植物多样性的一半。这些群体最近经历了爆炸性的物种形成和适应性辐射，显然是为了应对过去600万年来地质和气候的巨大变化。主要为附生植物的红掌属（天南星科，“喜林芋科”）有800个物种，分布在从哥斯达黎加到厄瓜多尔的地区，将被用来检验这种快速且近期物种形成的假设。该项目将分析红掌属和近缘属的分子、形态、地理和化石数据，以研究进化关系，研究最近和迅速进化的植物群的多样化模式将有助于我们理解新热带区植物群进化变化的克里思和模式，并有助于解决其非凡的奥秘。物种丰富度这项研究将提高生态和园艺重要植物群的系统知识，并将系统研究与化石，分布和进化研究相结合。该项目将包括学生培训，在专家、植物园和观赏植物种植者之间建立合作网络;并通过会议、出版物和网站传播成果。