Plant mitochondrial gene expression and evolution

植物线粒体基因表达和进化

• 批准号: 46530-2011
• 负责人: Bonen, Linda
• 金额: $ 2.91万
• 依托单位: University of Ottawa
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=506156
• 关键词: Plant; mitochondrial; gene; expression; evolution

Mitochondria possess their own distinctive DNA, with genes essential for cellular energy production. Since the time that mitochondria arose through symbiosis between a primitive respiring bacterium and host cell, they have evolved very different ways of storing and decoding genetic information. The study of mitochondria from plants, animals, fungi and protists has uncovered a wealth of novel features (such as altered genetic codes, RNA editing, mobile intron ribozymes), and this has prompted a reconsideration of certain fundamental principles in molecular biology.

线粒体拥有自己独特的DNA，其基因对细胞能量的产生至关重要。自从线粒体通过原始呼吸细菌和宿主细胞之间的共生而产生以来，它们已经进化出了非常不同的存储和解码遗传信息的方式。对植物、动物、真菌和原生生物线粒体的研究已经发现了大量的新特征（如遗传密码改变、RNA编辑、移动内含子核酶），这促使人们重新考虑分子生物学中的某些基本原理。