Dissertation Research: Coevolutionary Consequences of Symbiosis: a Biogeographic Study of a Fungal Virus

论文研究：共生的共同进化后果：真菌病毒的生物地理学研究

• 批准号: 0508264
• 负责人: Georgiana May
• 金额: --
• 依托单位: University of Minnesota-Twin Cities
• 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: 2005-07-01 至 2007-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0508264&HistoricalAwards=false
• 关键词: Dissertation; Research; Coevolutionary; Consequences; Symbiosis

Intimate interactions between disparate organisms are ubiquitous throughout nature and have pronounced impacts on the evolution of the participating organisms. The proposed research will investigate the effects of symbiotic interactions on the attributes of the populations of viruses that infect a fungal pathogen of corn. Specifically this research will: 1) compare ancestral and descendant virus populations, 2) assess migration and gene flow among viral populations, 3) estimate the infection frequency of the virus in fungal populations, and 4) estimate the frequency of virus that produce toxins. This research will determine how characteristics of host and populations affect the evolution of the symbiosis. Complex symbiotic interactions are important in human, animal, and plant diseases. Broader Impacts- Experience gained from this project will assist existing international collaborations with researchers in South America in understanding how symbioses can affect agricultural ecology and evolution. In addition, an undergraduate trained to participate in this research is an underrepresented minority who will be conducting her Honors Thesis under the guidance of the dissertation student.

不同生物体之间的密切相互作用在自然界中普遍存在，并对参与生物体的进化产生显着影响。拟议的研究将调查共生相互作用对感染玉米真菌病原体的病毒群体属性的影响。具体来说，这项研究将：1）比较祖先和后代病毒种群，2）评估病毒种群之间的迁移和基因流，3）估计病毒在真菌种群中的感染频率，4）估计病毒产生毒素的频率。这项研究将确定宿主和种群的特征如何影响共生的进化。复杂的共生相互作用对于人类、动物和植物疾病很重要。更广泛的影响——从该项目中获得的经验将有助于与南美研究人员的现有国际合作，了解共生如何影响农业生态和进化。此外，接受过参与这项研究培训的本科生是少数，他们将在论文学生的指导下完成她的荣誉论文。