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DISSERTATON RESEARCH: Genetic diversification of mesic treefrogs in a dry Neotropical savanna: Next-Gen sequencing uncovers the roles of environment, paleoclimate, and geography

论文研究：干燥新热带稀树草原中的中生树蛙的遗传多样性：下一代测序揭示了环境、古气候和地理的作用

基本信息

批准号：
1311517
负责人：
David Cannatella
金额：
$ 1.77万
依托单位：
University of Texas at Austin
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2013
资助国家：
美国
起止时间：
2013-06-01 至 2016-05-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1311517&HistoricalAwards=false
关键词：
DISSERTATON RESEARCH Genetic diversification mesic

项目摘要

Savannas, which are among the most diverse but understudied ecosystems, are severely threatened due to the ease of converting these areas to agriculture. The savannas of Brazil are the largest on Earth, and conservation and management of the biota in the remaining savanna patches requires documenting the evolutionary and ecological factors that gave rise to and maintain this biodiversity. Treefrog species are excellent models for this research because they are highly sensitive to vegetation type, temperature, and humidity levels. Thus, climatic alteration is quickly revealed by declines in populations of these species. Using new methods in computer modeling that describe environments on a large scale, and advances in DNA technology, this research will assess the genetic well being of frog populations in relation to their changing environment and their prospects for survival.The diverse sources of data to be collected will provide baseline information critical to efficiently protect and manage these endangered habitats and biotas. These methods and research approaches will be transferrable to other groups of organisms in different ecological regions. This project will contribute significantly to promoting integrative, multidisciplinary research involving international collaborators, and will train students as future scientists and science educators.

热带稀树草原是最多样化但研究不足的生态系统之一，由于很容易将这些地区转变为农业，因此受到严重威胁。巴西的稀树草原是地球上最大的稀树草原，要保护和管理剩余稀树草原斑块中的生物群，就需要记录产生和维持这种生物多样性的进化和生态因素。树蛙物种是这项研究的极好模型，因为它们对植被类型，温度和湿度水平高度敏感。因此，气候的变化很快就被这些物种的数量下降所揭示。这项研究将利用计算机模拟的新方法来描述大规模的环境，并利用DNA技术的进步，评估青蛙种群的遗传健康与不断变化的环境和生存前景的关系。收集的各种数据来源将提供有效保护和管理这些濒危栖息地和生物多样性的关键基线信息。这些方法和研究途径将可推广到不同生态区域的其他生物类群。该项目将大大有助于促进国际合作者参与的综合性多学科研究，并将培养学生成为未来的科学家和科学教育家。