DISSERTATION RESEARCH: Edaphic endemism in Eriogonum (Polygonaceae): A molecular phylogenetic approach.

论文研究：Eriogonum（蓼科）的土壤特有现象：分子系统发育方法。

• 批准号: 0910195
• 负责人: Kenneth Sytsma
• 金额: $ 1.04万
• 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: 2009
• 资助国家: 美国
• 起止时间: 2009-06-01 至 2011-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0910195&HistoricalAwards=false
• 关键词: DISSERTATION; RESEARCH; Edaphic; endemism; Eriogonum

Soils in the western United States are diverse, both in their properties and distribution across the landscape. Plants species show exceptional diversity as well. Many species of plants grow only in specific soil types. The wild buckwheats (Eriogonum) are a group of plants that include many of these soil specialists (edaphic endemics). This project examines these patterns using modern DNA sequencing and classic greenhouse experiments to determine if there is an evolutionary pattern relating to these soil specialists. It will also address whether these species are specifically adapted to these soils, or if they can survive on a variety of soils. This project reaches across many disciplines, incorporating principles of botany, evolutionary biology, soil science, and ecology. The results of this project will add to the knowledge relating to the distribution of rare plant species, especially pertaining to soils. Unique methods incorporated in this project will be disseminated for other researchers to use and improve. A number of species in the study group are rare or endangered. Data gathered from fieldwork will be vital to various conservation agencies, for implementing sound, well-informed policies.

美国西部的土壤是多样的，无论是在它们的性质上，还是在整个景观中的分布上。植物物种也表现出特别的多样性。许多种类的植物只生长在特定的土壤类型中。野生荞麦(Eriogonum)是一组植物，其中包括许多土壤专家(土壤特有种)。该项目使用现代DNA测序和经典的温室实验来检查这些模式，以确定是否存在与这些土壤专家有关的进化模式。它还将讨论这些物种是否特别适应这些土壤，或者它们是否可以在各种土壤上生存。这个项目涉及许多学科，融合了植物学、进化生物学、土壤科学和生态学的原理。该项目的成果将增加有关稀有植物物种分布的知识，特别是与土壤有关的知识。这个项目中包含的独特方法将被传播，供其他研究人员使用和改进。研究组中有许多物种是稀有或濒危物种。从实地调查中收集的数据对各个保护机构来说至关重要，对于实施健全的、知情的政策来说。