Collaborative Research: Arabidopsis 2010: Ecological genomics of adaptation to climate

合作研究：拟南芥2010：适应气候的生态基因组学

• 批准号: 1022196
• 负责人: John McKay
• 金额: $ 70.02万
• 依托单位: Colorado State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-08-01 至 2015-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1022196&HistoricalAwards=false
• 关键词: Collaborative; Research; Arabidopsis; 2010; Ecological

This research investigates the ecological and genetic mechanisms that allow the plant Arabidopsis thaliana to adapt (grow, survive and reproduce) to different natural environments. Using wild populations from the extremes of a natural gradient in temperature and length of daylight, the investigators will identify the traits and genes that govern plant performance in nature. Traits of particular interest include flowering time, freezing and drought tolerance, and the capacity of plants to photosynthesize (make energy from sunlight) under conditions of physiological stress. The investigators will identify the genes that contribute to adaptation in nature and the magnitude of the effect of individual genes. A major goal of this work is to investigate the importance of genes that have positive effects in one environment but negative effects in other environments. Such genes are poorly understood but are thought to play a key role in adaptation.The study will provide a deeper understanding of the mechanisms that allow plants to cope with different environments and has the potential to provide genetic tools for producing new varieties of plants/crops. In addition, the study system is well suited to investigate the possible consequences of global climate change and the potential of plants to adapt to rapidly changing conditions.

这项研究研究了允许植物拟南芥植物拟南芥的生态和遗传机制，适应（生长，生存和繁殖）对不同的自然环境。研究人员将利用天然梯度极端的野生群体在温度和日光上的长度，将识别自然界植物性能的特征和基因。特别感兴趣的特征包括开花时间，冰冻和干旱的耐受性以及在生理压力条件下植物光合作用的能力（从阳光下产生能量）。研究者将确定有助于自然适应的基因和单个基因作用的大小。这项工作的主要目标是研究在一个环境中具有积极影响但在其他环境中产生负面影响的基因的重要性。 这种基因的理解很少，但被认为在适应中起着关键作用。该研究将对允许植物应对不同环境的机制有更深入的了解，并有可能提供遗传工具来生产新的植物/农作物。此外，研究系统非常适合研究全球气候变化的可能后果以及植物适应快速变化的条件的潜力。