茶树休眠芽与萌动芽抑制消减杂交文库的构建与初步分析

被引:14
作者
王新超 [1 ,2 ]
杨亚军 [1 ]
陈亮 [1 ]
马春雷 [1 ]
姚明哲 [1 ]
机构
[1] 中国农业科学院茶叶研究所茶树资源和改良研究中心/国家茶树改良中心
[2] 中国农业科学院研究生院
关键词
茶树(Camellia sinensis); 芽休眠; 表达序列标签; 抑制消减杂交;
D O I
10.13305/j.cnki.jts.2010.02.010
中图分类号
S571.1 [茶];
学科分类号
0902 ; 090203 ;
摘要
为了解茶树越冬芽休眠及其解除的分子机理,以休眠芽和萌动芽为材料,构建了茶树休眠芽与萌发芽的正、反向抑制消减杂交文库,并从两个文库各随机挑选96个阳性克隆进行序列测定和生物信息学分析。建库质量分析结果表明,所构建的正、反向消减文库有效富集了差异基因,消减效率达到要求,插入片段集中于250~750bp之间,文库质量较好。对正、反向文库随机挑选的阳性克隆测序和分析结果表明,正、反向文库在基因表达谱上存在一定的差异,萌动芽文库在亚细胞器形成、转运载体等方面的基因与休眠芽文库有较大差异,而休眠芽文库在抗氧化、翻译调控以及胁迫响应等方面的基因与萌动芽文库有较大差异。这两个文库的建立为进一步了解茶树芽休眠与解除的分子机制奠定了基础。
引用
收藏
页码:129 / 135
页数:7
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