Hybridization and its Evolutionary Consequences

杂交及其进化后果

• 批准号: 0542566
• 负责人: Karin Pfennig
• 金额: --
• 依托单位: University of North Carolina at Chapel Hill
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-03-01 至 2009-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0542566&HistoricalAwards=false
• 关键词: Hybridization; its; Evolutionary; Consequences

Understanding how new species arise and how barriers between species are maintained is critical for determining how biodiversity originates and successfully persists. The key factor that determines if new species arise or whether species barriers are maintained is the performance of hybrids between two species. If hybrids perform poorly, species barriers will be maintained, whereas if hybrids do well in their environment species barriers will break down. The proposed research will evaluate what factors contribute to hybridization and assess how behaviors that preclude hybridization may arise. The work will combine experiments in the wild with laboratory and genetic studies to address this goal.Assessing whether and how hybridization is detrimental is critical for understanding not only the origins of biodiversity but also how to preserve it. Moreover, by evaluating the nature of hybrid performance, this research will contribute to our ability to use hybridization to control pest species and prevent hybridization between invasive (or genetically engineered) species and resident species. This project will also increase representation of underrepresented groups in basic biology research by providing access to research opportunities for students from historically minority universities.

了解新物种如何产生以及物种之间的屏障如何维持对于确定生物多样性如何起源和成功维持至关重要。 决定新物种是否出现或物种屏障是否维持的关键因素是两个物种之间杂交的表现。 如果杂交种表现不佳，物种屏障将得以维持，而如果杂交种在其环境中表现良好，物种屏障将被打破。 拟议的研究将评估哪些因素有助于杂交，并评估如何阻止杂交的行为可能会出现。 这项工作将把野外联合收割机实验与实验室和遗传学研究结合起来，以实现这一目标。评估杂交是否有害以及如何有害，不仅对理解生物多样性的起源至关重要，而且对如何保护生物多样性也至关重要。此外，通过评估杂交性能的性质，这项研究将有助于我们利用杂交技术控制害虫物种，防止入侵物种之间的杂交。（或基因工程）物种和居民物种。 该项目还将通过为历史上属于少数群体的大学的学生提供研究机会，提高代表性不足群体在基础生物学研究中的代表性。