DISSERTATION RESEARCH: Edaphic factors in the diversification of Ceanothus L., subgenus Cerastes (Rhamnaceae)

论文研究：角鼠亚属（鼠李科）Ceanothus L. 多样化中的土壤因素

基本信息

批准号：
0808427
负责人：
Paul Manos
金额：
$ 1.2万
依托单位：
Duke University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2008
资助国家：
美国
起止时间：
2008-07-15 至 2010-06-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0808427&HistoricalAwards=false
关键词：
DISSERTATION RESEARCH Edaphic factors diversification

项目摘要

This study will improve understanding of the role that soil conditions play in plant diversification. Although soil conditions have long been seen as a key component of plant ecology, little is understood about the effect of soil conditions on plant evolution and diversification. The proposed research will use the plant genus Ceanothus as a model system for the study of how soil conditions affect diversification. Ceanothus contains a large number of species that are associated with unusual soils, and is thus an ideal setting in which to study the influence of soil conditions in diversification. The proposed research will use genetic data to determine evolutionary relationships among Ceanothus species. These data will then be combined with information on soil chemistry to infer the role that soil conditions have played in the diversification of Ceanothus.The proposed research will take an interdisciplinary approach to understanding how soil conditions affect plant diversification, combining data and analytical methods from the disciplines of evolutionary biology, ecology, and soil science. Insights derived from this research, as well as the interdisciplinary approach that it develops, will apply to other groups of plants, particularly the large portion of plant diversity in which strong adaptations to soil conditions are observed. The proposed research will also advance understanding of North American plant diversity, foster international collaboration, result in the broad dissemination of research results within the scientific community, and benefit society through direct outreach in the form of guided hikes in Ceanothus habitats in the state of California, and writings directed at the general public.

这项研究将提高人们对土壤条件在植物多样化中起作用的作用的理解。尽管长期以来一直将土壤条件视为植物生态学的关键组成部分，但对土壤条件对植物进化和多样化的影响几乎没有理解。拟议的研究将使用植物属Ceanothus作为模型系统，以研究土壤条件如何影响多样化。 Ceanothus包含大量与异常土壤相关的物种，因此是研究土壤条件在多样化中影响的理想环境。拟议的研究将使用遗传数据来确定库托斯物种之间的进化关系。然后，这些数据将与有关土壤化学的信息相结合，以推断土壤条件在库索斯多样化中所起的作用。拟议的研究将采用跨学科的方法来理解植物条件如何影响植物的多样化，将数据和分析方法结合在一起，从进化生物学，生态学，生态学和土壤科学的学科中。从这项研究中得出的见解以及它所开发的跨学科方法将适用于其他植物群，尤其是观察到对土壤条件的强大适应性的植物多样性。拟议的研究还将提高人们对北美工厂多样性的了解，促进国际合作，导致科学界的研究成果广泛传播，并通过在加利福尼亚州的塞奥图斯栖息地的直接宣传来使社会受益，并致力于加利福尼亚州的著作，并针对公众。