Dissertation Research: Phylogenetic analysis of the Neotropical plant genus Clusia (Clusiaceae)
论文研究:新热带植物Clusia属(Clusiaceae)的系统发育分析
基本信息
- 批准号:1702085
- 负责人:
- 金额:$ 1.73万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2017
- 资助国家:美国
- 起止时间:2017-05-01 至 2018-04-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Clusia is a tropical group of about 300 species of shrubs and trees in the mangosteen family (Clusiaceae). Clusia plants have a number of notable characteristics that make them important for study. In addition to being one of the few trees and shrubs to grow on other plants (epiphytes), Clusia is the only known tree group to have Crassulacean Acid Metabolism (CAM) photosynthesis in which carbon (CO2) is absorbed during the night, when temperatures are lower and water loss is reduced. It is also one of only two groups of flowering plants in which flowers of some species produce floral resins instead of nectar as reward for pollinators. This project seeks to use genome-wide DNA sequence data to understand how species of Clusia are related to each other, and to estimate the evolutionary history of CAM photosynthesis and floral resins in the group. Results will enable the researchers to understand patterns of plant adaptation to water stress, and provide new insights into the evolution of pollination reward systems. Taken together, these results will permit a better understanding of how plants have evolved and how they have adapted to different environments. One graduate student and an undergraduate will be trained in molecular systematic and anatomical methods. Data from the project will also be used to enhance a summer research program at Rancho Santa Ana Botanical Garden that provides research experiences and training for students from Principally Undergraduate Institutions across the U.S. Results from the study will also be broadly disseminated in popular science magazines. This work focuses on reconstructing phylogenetic relationships in the Neotropical plant genus Clusia (Clusiaceae) using phylogenomic data. The resulting phylogeny will be used to: 1) test the monophyly of currently recognized sections and revise the classification for the genus, 2) investigate the distribution of CAM photosynthesis within the group and reconstruct the pattern of its evolution, and 3) reconstruct the evolution of resin-producing flowers within the genus. The resulting analyses will provide a better general understanding of plant physiology and plant-pollinator interactions.
山竹属(Clusiaceae)是一个热带类群,约有300种山竹属灌木和乔木。簇毛属植物具有许多显著的特征,这使它们在研究中具有重要意义。除了是为数不多的生长在其他植物(附生植物)上的乔木和灌木之一,Clusia还是已知的唯一具有景泰蓝酸代谢(CAM)光合作用的树群,在夜间,温度较低,水分损失减少,光合作用中的碳(CO2)被吸收。它也是仅有的两类开花植物之一,在这些植物中,某些物种的花会产生花树脂而不是花蜜,作为对传粉者的奖励。该项目寻求使用全基因组DNA序列数据来了解簇属物种之间的相互关系,并估计该群体中CAM光合作用和花树脂的进化历史。研究结果将使研究人员能够了解植物对水分胁迫的适应模式,并为授粉奖励系统的进化提供新的见解。综上所述,这些结果将有助于更好地了解植物是如何进化的,以及它们是如何适应不同的环境的。一名研究生和一名本科生将接受分子系统和解剖学方法的培训。该项目的数据还将用于加强兰乔圣安娜植物园的暑期研究项目,该项目为美国各地主要本科院校的学生提供研究经验和培训。研究结果还将在科普杂志上广泛传播。这项工作的重点是利用系统发育学数据重建新热带植物簇毛菊属(Clusiaceae)的系统发育关系。所建立的系统发育图将用于:1)检验目前公认的组的单性并修订该属的分类;2)调查该属组内CAM光合作用的分布并重建其进化模式;3)重建该属内产树脂花的进化。由此产生的分析将提供对植物生理学和植物-传粉者相互作用的更好的总体了解。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Lucinda McDade其他文献
Lucinda McDade的其他文献
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{{ truncateString('Lucinda McDade', 18)}}的其他基金
MRI: Empowering Plant Science Research at Rancho Santa Ana Botanic Garden with High Resolution and Variable Pressure Scanning Electron Microscopy Instrumentation
MRI:利用高分辨率和可变压力扫描电子显微镜仪器为兰乔圣安娜植物园的植物科学研究提供支持
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0545170 - 财政年份:2006
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0138639 - 财政年份:2002
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Phylogenetics of Acanthaceae: A nested approach to resolving relationships of Acanthaceae and their closest relatives
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