REVSYS Collaborative Research: Untangling the Passionflower Vines: Phylogeny, Species Diversification, and Character Evolution in Passiflora Subg. Decaloba (Passifloraceae)

REVSYS 合作研究：解开西番莲藤蔓：西番莲亚种的系统发育、物种多样化和性状进化。

• 批准号: 0717084
• 负责人: Kristen Porter-Utley
• 金额: $ 18.85万
• 依托单位: Keene State College
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2012-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0717084&HistoricalAwards=false
• 关键词: REVSYS; Collaborative; Research; Untangling; Passionflower

Passiflora represents a diverse group of more than 560 species of vines and trees primarily found in Central and South America. These plants are best known as the source of tropical passionfruit, but are also widely cultivated for their beautiful, complex flowers. Passionflowers appear to be a recently-evolved lineage that has experienced rapid species diversification. Many species are poorly understood with regard to morphology, geographical distribution, and conservation status, especially in the largest lineage of passionflowers, subgenus Decaloba, with 235+ species. This study will synthesize modern and traditional approaches to address these problems, using DNA sequence data, scanning electron microscopy, and observation of fresh and preserved specimens. Field work will enable collection of fresh material and documentation of species distributions. This project will yield a revision of all species in Decaloba, and will provide a modern evolutionary framework within which to address questions about the evolution of floral shape, pollination syndromes, floral development, and the biogeographical history of the lineage. This study will address important biological and evolutionary questions in an especially charismatic group of plants. Undergraduate and graduate students will participate in the research. Undergraduates at Keene State College and Harris-Stowe State University, institutions that primarily enroll underrepresented groups in the sciences, will especially benefit from involvement in this study. Summer workshops at Rancho Santa Ana Botanic Garden will involve students from the local community. Field expeditions will build international collaborations among U.S. scientists and colleagues in Mexico, Central America, and South America. All results of this project will be available through a website hosted by the Missouri Botanical Garden.

西番莲代表了 560 多种藤本植物和树木，主要分布在中美洲和南美洲。这些植物以热带百香果的来源而闻名，但也因其美丽而复杂的花朵而被广泛种植。西番莲似乎是一个最近进化的谱系，经历了快速的物种多样化。人们对许多物种的形态、地理分布和保护状况知之甚少，尤其是西番莲最大的谱系——Decaloba 亚属，有 235 多个物种。这项研究将利用 DNA 序列数据、扫描电子显微镜以及对新鲜和保存标本的观察，综合现代和传统方法来解决这些问题。实地工作将能够收集新鲜材料并记录物种分布。该项目将对德卡洛巴的所有物种进行修订，并将提供一个现代进化框架，在该框架内解决有关花形状进化、授粉综合症、花发育和谱系的生物地理历史的问题。这项研究将解决一个特别有魅力的植物群中的重要生物学和进化问题。本科生和研究生将参与该研究。基恩州立学院和哈里斯-斯托州立大学的本科生尤其会从参与这项研究中受益，这些机构主要招收科学领域代表性不足的群体。兰乔圣安娜植物园的夏季研讨会将有来自当地社区的学生参加。实地考察将在美国科学家和墨西哥、中美洲和南美洲的同事之间建立国际合作。该项目的所有结果将通过密苏里植物园主办的网站提供。