International Research Fellowship Program: Using Empirical Data to Test Population and Metapopulation Models for the Evolution of Mating Systems in the Annual Plant M. Annua

国际研究奖学金计划：利用经验数据测试一年生植物 M. Annua 交配系统进化的种群和集合种群模型

• 批准号: 0202645
• 负责人: Sarah Eppley
• 金额: $ 18.45万
• 依托单位: Eppley Sarah M
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-09-01 至 2005-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0202645&HistoricalAwards=false
• 关键词: International; Research; Fellowship; Program; Using

0202645EppleyThe International Research Fellowship Program enables U.S. scientists and engineers to conduct three to twenty-four months of research abroad. The program's awards provide opportunities for joint research, and the use of unique or complementary facilities, expertise and experimental conditions abroad.This award will support a twenty-four month research fellowship by Dr. Sarah M. Eppley to work with Dr. John R. Pannell at the University of Oxford in the United Kingdom.Dr. Eppley and her host will test population and metapopulation models for the evolution of mating systems in Mercurialis annual. This annual plant is an excellent species for empirical studies designed to test theoretical models such as this because it is a short-lived annual that can be grown to sexual maturity within weeks. It also offers an exceptional opportunity to determine the relationship between various mating-system parameters and breeding systems. Ongoing research has established baseline information and techniques for this species, including development of molecular markers that lend themselves to the study of specific questions regarding mating-system evolution. This study is the first of its kind to compare the rates of gene flow between inbreeding and outbreeding populations in the context of combines versus separate sexes. The project will also provide information on the consequences for gene flow of contrasting sex allocation strategies in a wind-pollinated plant species.The University of Oxford's faculty has been actively investigating plant evolutionary processes, with cross-disciplinary interactions between plant ecologists, geneticists, physiologists, and molecular biologists. Dr. Pannell has been working with M. annua for seven years and is an authority on the genetics of plant mating systems and on the construction and interpretation of theoretical models exploring mating-system evolution.

0202645Eppleythe国际研究奖学金计划使美国科学家和工程师能够在国外进行三到二十四个月的研究。 该计划的奖项为联合研究提供了机会，并在国外使用独特或补充设施，专业知识和实验条件。该奖项将支持Sarah M. Eppley博士与John R.博士合作的24个月研究奖学金。英国牛津大学的潘内尔。埃普利（Eppley）和她的宿主将测试Mercurialis年度交配系统演变的人口和种群模型。该年度植物是实证研究的绝佳物种，旨在测试这样的理论模型，因为它是一个短暂的年度，可以在几周内成长为性成熟。 它还提供了一个非凡的机会来确定各种交配系统参数与繁殖系统之间的关系。 正在进行的研究已经为该物种建立了基线信息和技术，包括开发分子标记，这些标志物为研究有关交配系统进化的特定问题的研究。 这项研究是第一个在联合收藏与单独性别与单独性别的近亲繁殖与繁殖种群之间的基因流量和差异种群之间的基因流量的速率。 该项目还将提供有关风粉植物物种中对比性别分配策略基因流的后果的信息。牛津大学的教师一直在积极调查植物进化过程，以及植物生态学家，遗传学家，生理学家，生理学家，生理学家之间的跨学科相互作用和分子生物学家。 Pannell博士已经与M. Annua合作了七年，并且是植物交配系统的遗传学以及探索交配系统进化的理论模型的构建和解释的权威。