| 发根农杆菌Ri质粒rol基因的研究现状 |
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| 引用本文： | 梁机,林善枝,郭海,陈晓阳.发根农杆菌Ri质粒rol基因的研究现状[J].中国林学,2002,4(1):58-64. |
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| 作者姓名： | 梁机 林善枝 郭海 陈晓阳 |
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| 作者单位： | 北京林业大学生物科学与技术学院,北京,100083 |
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| 摘 要： | 发根农杆菌Ri质粒与诱根有关的rol基因在植物中的表达不仅能导致大量毛根形成 ,而且还表现出一系列能稳定遗传的表型变异 ,在植物遗传改良中有着广阔的应用前景 .2 0世纪 80年代以来 ,国内外学者对发根农杆菌 ,尤其是农杆碱型发根农杆菌Ri质粒及其rol基因进行了广泛深入的研究 .该文重点综述了农杆碱型发根农杆菌Ri质粒的结构与功能、rol基因的位点与特征、Ri质粒的转化及rol基因的表达对植物生长发育的影响及在林木遗传改良上的应用等方面的研究现状 ,并对Ri质粒rol基因在林木遗传改良应用上存在的问题与应用前景进行了分析 .
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| 关 键 词： | 发根农杆菌 Ri质粒 rol基因 表型变异 林木遗传改良 |
Researches of Agrobacterium rhizogenes Ri Plasmid rol Genes |
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| Liang Ji,Lin Shanzhi,GUO Hai,Chen Xiaoyang.Researches of Agrobacterium rhizogenes Ri Plasmid rol Genes[J].Forestry Studies in China,2002,4(1):58-64. |
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| Authors: | Liang Ji Lin Shanzhi GUO Hai Chen Xiaoyang |
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| Abstract: | Expression of rol genes from Ri plasmid of Agrobacterium rhizogenes not only leads to the excessive formation of adventitious roots, but also exhibits various genetically modified characteristics that have broad prospects for the application of plant genetic improvement. Since the 1980s of the last century, much progress has been made in the studies of A. rhizogenes, in particular the agropine type Ri plasmid rol genes and their applications for plant genetic improvement, which involves the structure and function of Ri plasmid, the characters of rol genes, the influence of rol genes expression on plants growth and development, and the applications of rol genes for genetic improvement of forest tree. In this paper, the advances in this field are reviewed and the existing problems about the application of rol genes for genetic improvement of forest tree are also discussed. |
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| Keywords: | Agrobacterium rhizogenes Ri plasmid rol genes phenotypic alterations genetic improvement of forest tree |
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