植物学报 ›› 2005, Vol. 22 ›› Issue (增刊): 43-49.

• 实验简报 • 上一篇    下一篇

油茶优良无性系子叶体细胞胚植株再生

1张智俊 2罗淑萍 2李亚玲 3毕方铖 3谭晓风   

    1. 1(南京大学生命科学学院 南京 210093) 
    2. 2(新疆农业大学农学院 乌鲁木齐 830052)
    3. 3(中南林学院生命科学院 长沙 412006)
  • 收稿日期:2003-11-12 修回日期:2004-09-20 出版日期:2005-08-10 发布日期:2005-08-10
  • 通讯作者: 张智俊
  • 基金资助:
    教育部博士点基金(20030284044)资助

Plant Regeneration through Somatic Embryogenesis Formation from Cotyledons of Camellia oleifera Clone

1ZHANG Zhi-Jun 2LUO Shu-Ping 2LI Ya-Ling 3BI Fang-Cheng 3TAN Xiao-Feng   

    1. 1 (College of Life Science, Nanjing University, Nanjing 210093) 
    2. 2 (College of Agronomy, Xinjiang Agricultural University, Urmq 830052) 
    3. 3 (College of Life Science, Centre-south Forestry University, Changsha 412006)
  • Received:2003-11-12 Revised:2004-09-20 Online:2005-08-10 Published:2005-08-10

摘要: 以油茶优良无性系‘湘林4号’子叶为外植体, 采用附加不同种类激素的MS培养基对其进行组织培养实验。研究结果表明: 子叶形成胚性愈伤组织的最适合培养基为MS+2.0 mg.L-1 2, 4-D+1.0 mg.L-1 KT;经胚状体诱导产生不定芽分化的最适合培养基为MS+2.5 mg.L-1 6-BA+1.5 mg.L-1 IAA; 油茶优良无性系的生根培养基以MS+7.0 mg.L-1 NAA最适; 通过对植株再生过程中各阶段的组培材料进行RAPD鉴定分析表明, DNA水平上未发现变异, 说明通过组织培养建立的油茶优良无性系再生植株同原无性系无明显差别, 最终获得的组培苗木能够保持原无性系的优良特性, 其遗传是稳定的。

关键词: 油茶, 无性系, 体细胞胚, 组织培养

Abstract: Cotyledons of explants from ‘xianglin-4’ (XL-4), a Camellia oleifera clone, were cultured in MS medium with different hormones. Results showed that the optimal medium for embryogenetic callus formation was MS with 2.0 mg.L-1 2,4-D and 1.0 mg.L-1 KT; the optimal medium for shoot development via embryos was MS with 2.5 mg.L-1 6-BA and 1.5 mg.L-1 IAA; the optimal medium for root inducement was MS with 7.0 mg.L-1 NAA. Some materials from different processes of plantlet regeneration were discriminated by RAPD analysis. However, no mutations or differentiation were discovered. Therefore, it can be concluded that plantlets from tissue culture do not differ from quondam clones and can maintain the hereditary consistency well.

Key words: Camellia oleifera, Clone, Somatic embryogenesis, Tissue culture