Exploiting natural variation to discover tools to increase crop plant yield

利用自然变异来发现提高农作物产量的工具

• 批准号: DP150101037
• 负责人: Dr Martha Ludwig
• 金额: $ 30.24万
• 依托单位: The University of Western Australia
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2015
• 资助国家: 澳大利亚
• 起止时间: 2015-01-01 至 2018-06-30
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP150101037
• 关键词: Exploiting; natural; variation; discover; tools

This project aims to identify the specific biochemical and underlying molecular modifications that contributed to the evolution of the C4 pathway by studying C3, C4 and C3-C4 intermediate Flaveria species. Most land plants use C3 or C4 photosynthesis to assimilate CO2. Plants using the C4 pathway evolved from C3 ancestors in multiple plant lineages, and show higher rates of photosynthesis and conversion of solar radiation to biomass in arid, high-light and saline environments, which are expanding due to global climate change. The outcomes of this project could define what is required to engineer plant varieties with increased yield and the ability to withstand effects of climate shift, and contribute to our understanding of convergent evolutionary processes.

该项目旨在通过研究C3，C4和C3-C4中间Flaveria物种来确定有助于C4途径进化的特定生物化学和潜在分子修饰。大多数陆地植物利用C3或C4光合作用来吸收CO2。使用C4途径的植物从多个植物谱系中的C3祖先进化而来，并且在干旱，高光和盐环境中表现出更高的光合作用和太阳辐射转化为生物量的速率，由于全球气候变化，这些环境正在扩大。该项目的成果可以定义需要什么来设计具有增加产量和承受气候变化影响的能力的植物品种，并有助于我们理解趋同进化过程。