Collaborative Research: Gene Flow Across a Landscape mosaic: Biogeography and Domestication in Stenocereus Stellatus (Cactaceae)

合作研究：跨景观镶嵌的基因流：Stenocereus Stellatus（仙人掌科）的生物地理学和驯化

• 批准号: 0519553
• 负责人: Kathleen Parker
• 金额: --
• 依托单位: University of Georgia Research Foundation Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-09-01 至 2010-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0519553&HistoricalAwards=false
• 关键词: Collaborative; Research; Gene; Flow; Across

Globally, ecosystems reflect the technological innovations, economic constraints, and cultural aspirations of their human inhabitants. Plant domestication - cultivation of a narrow genetic pool and extraction from wild populations - can have negative effects for plant species in a human impacted landscape. Alternatively, human management can enhance diversity, for instance, through exchange of crop landraces or hybridization. This project will investigate the process of plant domestication and its impact on diversity and gene flow in cultivated and wild populations. The cactus, Stenocereus stellatus, provides an ideal opportunity to study these processes because it is actively under domestication within traditional agriculture systems in Central Mexico. This study will use genetic and morphologic characters to estimate patterns of diversity within S. stellatus, measure gene movement, and describe historic biogeographic patterns of S. stellatus and the role that human cultures may have had in creating those patterns. This research will further our understanding of agrobiodiversity, plant domestication, and the geography of human-plant interactions. Results can be applied towards management of biodiversity within the socioeconomic context of developing countries. This project is part of an international collaboration and will support scientific training and exchange for undergraduate and graduate students in the United States and Mexico.

在全球范围内，生态系统反映了其人类居民的技术创新，经济限制和文化愿望。植物驯化 - 种植狭窄的遗传库和从野生种群中提取 - 可能对人类影响的景观中的植物物种产生负面影响。另外，人类管理可以通过交换农作物层或杂交来增强多样性。该项目将研究植物驯化的过程及其对栽培和野生种群中多样性和基因流动的影响。仙人掌stellatus stellatus为研究这些过程提供了理想的机会，因为它在墨西哥中部传统农业系统中积极驯化。这项研究将使用遗传和形态学特征来估计斯特拉图斯链球菌中多样性的模式，衡量基因运动，并描述斯特拉图斯链球菌的历史生物地理模式，以及人类文化在创造这些模式中可能具有的作用。这项研究将进一步了解我们对农业生物多样性，植物驯化和人类植物相互作用的地理位置的理解。结果可以应用于发展中国家社会经济背景下的生物多样性。该项目是国际合作的一部分，将支持美国和墨西哥的本科和研究生的科学培训和交流。