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

• 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; DISSERTATON; RESEARCH; Genetic; diversification; mesic

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.

Savannas是最多样化但研究研究的生态系统之一，由于容易将这些地区转化为农业，因此受到严重威胁。巴西的稀树草原是地球上最大的，其余的稀树草原斑块中生物群的保护和管理需要记录引起并维持这种生物多样性的进化和生态因素。树蛙是这项研究的绝佳模型，因为它们对植被类型，温度和湿度水平高度敏感。因此，这些物种种群的下降迅速揭示了气候改变。这项研究在计算机建模中使用新方法描述了环境，以及DNA技术的进步，将评估青蛙种群与其不断变化的环境及其生存前景有关的遗传健康。收集到的数据来源将为有效保护和管理这些濒临灭绝的栖息地和生物植物提供至关重要的基线信息。这些方法和研究方法将被转移到不同生态区域的其他生物群。该项目将为促进涉及国际合作者的综合，多学科研究做出重大贡献，并将培训学生作为未来的科学家和科学教育者。