›› 2011, Vol. 13 ›› Issue (3): 9-16.DOI: 10.3969/j.issn.1008-0864.2011.03.02

• 生物技术 生命科学 • 上一篇    下一篇

植物线粒体结构基因组研究进展

苏爱国1,2,李双双1,王玉美3,雷彬彬1,刘国政1,康定明1,华金平1,2   

  1. (1.中国农业大学农学与生物技术学院, 北京 100193|2.中国农业大学杂种优势研究与利用教育部重点实验室, 作物基因组学与遗传改良农业部重点开放实验室, 作物遗传改良北京市重点实验室, 北京 100193|3. 湖北省农业科学院经济作物研究所, 武汉 430064)
  • 收稿日期:2011-01-26 修回日期:2011-03-03 出版日期:2011-06-15 发布日期:2011-06-15
  • 通讯作者: 华金平,教授,博士生导师,研究方向为棉花遗传育种与基因组研究。E-mail:jinping_hua@cau.edu.cn
  • 作者简介:苏爱国,博士研究生,研究方向为作物基因组学。E-mail:sx_201.su@yahoo.com.cn。
  • 基金资助:

    教育部“新世纪优秀人才支持计划”项目(NCET-06-0106);国家863计划项目(2007AA10Z125;2009AA101104)资助。

Research Progress on Structural Genomics of Plant Mitochondrial Genome

SU Ai-guo1,2, LI Shuang-shuang1, WANG Yu-mei3, LEI Bin-bin1, LIU Guo-zheng1, KANG Ding-ming1, HUA Jin-ping1,2   

  1. (1.College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193|2.Key Laboratory of Crop Heterosis  and Utilization, Ministry of Education, Key Laboratory of Crop Genetic Improvement and Genome, Ministry of Agriculture, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193|
    3.Institute of Cash Crops, Hubei Academy of Agricultural Sciences, Wuhan 430064, China)
  • Received:2011-01-26 Revised:2011-03-03 Online:2011-06-15 Published:2011-06-15

摘要:

植物线粒体基因组具有复杂的结构特征:基因组200~2 400 kb不等,变化大、重组频繁,存在水平基因迁移现象等。基因组中既含有非常保守的功能基因,也存在高度变异的基因间区序列。大量研究表明,线粒体基因组是植物细胞质雄性不育因子的载体。综述了近年来植物线粒基因组结构特征、基因组成和热点研究的进展,为进一步深入研究植物细胞质雄性不育的分子机理,并为胞质雄性不育三系杂交种选育、作物杂种优势利用提供理论指导。

关键词: 线粒体;基因组;重复序列;细胞质雄性不育

Abstract:

Plant mitochondrial genome has complicated structure features: such as variable genome size, frequent rearrangements, incorporation of foreign DNA sequences, etc. It contained both extraordinary conservation of functional genes and high variations in the intergenic regions. Numerous studies showed that the mitochondrial genome acted as the carrier of plant cytoplasmic male sterility. This paper reviewed the research progress on the structural characteristics, genetic composition and some hot focus of plant mitochondrial genomes, which provide theoretical guidance for further studies on molecular mechanism of cytoplasm male sterility (CMS), and effective application in CMS hybrid breeding and utilization of crop heterosis.

Key words: mitochondria, genome, repeat sequence, cytoplasmic male sterility(CMS)

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