Developmental regulation of plant mitochondrial genome structure and copy number

植物线粒体基因组结构和拷贝数的发育调控

• 批准号: LX0776042
• 负责人: Prof Ian Small
• 金额: $ 3.72万
• 依托单位: The University of Western Australia
• 依托单位国家: 澳大利亚
• 项目类别: Linkage - International
• 财政年份: 2007
• 资助国家: 澳大利亚
• 起止时间: 2007-04-01 至 2008-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LX0776042
• 关键词: Developmental; regulation; plant; mitochondrial; genome

Recombination is a major driving force behind mitochondrial DNA evolution and is responsible for the occurrence of cytoplasmic male sterile plants that are used by plant breeders to obtain high yield hybrids. A better understanding of the mechanisms that underlie mitochondrial and chloroplast genome maintenance and segregation will be a major fundamental scientific advance that will permit an integrated picture of the interactions between the three plant genomes (nuclear, mitochondrial and chloroplastic). It is also a pre-requisite for the future manipulation of the cytoplasmic genomes leading to new ways to develop varieties with modified cytoplasms.

重组是线粒体DNA进化的主要驱动力，也是植物育种者用来获得高产杂交种的细胞质雄性不育株的发生的原因。更好地理解线粒体和叶绿体基因组维持和分离的机制将是一项重大的基础性科学进步，将使人们能够完整地了解三种植物基因组(核、线粒体和叶绿体)之间的相互作用。这也是未来对细胞质基因组进行操作的先决条件，导致了开发具有修饰细胞质的品种的新方法。