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A novel approach to the identification of independent evolutionary lineages

识别独立进化谱系的新方法

基本信息

批准号：
0918212
负责人：
Bryan Carstens
金额：
$ 23.76万
依托单位：
Louisiana State University
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：
2009-08-01 至 2012-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0918212&HistoricalAwards=false
关键词：
novel approach identification independent evolutionary

项目摘要

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).Incipient species (species that form during the very early stages of divergence from a common ancestor) are difficult to diagnose using morphological or behavioral data. The phenotypic similarity of novel species complicates investigations into the generation of biodiversity because it can be difficult to identify speciation processes once the novel species are recognizably distinct. However, novel species can potentially be identified at very early stages in their divergence using information contained within DNA sequences and population genetic theory. This project develops new theories and methods to delimit species at the initial stages of divergence. Additionally, data analysis software will be produced that will allow evolutionary geneticists to apply these methods to their research systems, and its utility will be demonstrated using data from two empirical systems.Since species are the fundamental unit of biological research, this work will have broad impacts throughout evolutionary biology, ecology, and conservation biology. It will also result in the employment and training of two graduate students and a post-doctoral researcher, and will benefit society by increasing knowledge of North American Biomes and the processes that generate biodiversity.

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。早期物种（从共同祖先分化的早期阶段形成的物种）很难使用形态或行为数据进行诊断。新物种的表型相似性使生物多样性产生的调查复杂化，因为一旦新物种被识别为独特的，就很难识别物种形成过程。然而，利用DNA序列和种群遗传学理论中所包含的信息，可以在新物种分化的早期阶段就发现它们。该项目开发了新的理论和方法，以界定物种在分化的初始阶段。此外，还将制作数据分析软件，使进化遗传学家能够将这些方法应用到他们的研究系统中，并使用两个经验系统的数据来证明其效用。由于物种是生物学研究的基本单位，这项工作将在进化生物学、生态学和保护生物学领域产生广泛的影响。它还将导致两名研究生和一名博士后研究员的就业和培训，并将通过增加对北美生物群系和产生生物多样性的过程的了解而造福社会。