XU Na,YAN Qiang,CUI Xiao-xia,et al.Agrobacterium-mediated GmDAD1 Gene Silence of Transgenic Hairy Roots in Chimeric Soybean[J].Soybean Science,2015,34(04):576-581.[doi:10.11861/j.issn.1000-9841.2015.04.0576]
发根农杆菌介导的大豆DAD基因沉默嵌合植株的获得
- Title:
- Agrobacterium-mediated GmDAD1 Gene Silence of Transgenic Hairy Roots in Chimeric Soybean
- Keywords:
- Soybean; Hairy root; Chimeric plant; A rhizogenes; GmDAD
- 文献标志码:
- A
- 摘要:
- 利用发根农杆菌介导的转化方法,获得了大豆-DAD-基因在根组织中沉默的嵌合植株。同时在pHellsGate12载体基础上插入一个GFP表达盒使得对转基因组织的筛选变得更加简便;通过对荧光组织进行qPCR检测发现转基因组织与对照相比,DAD-基因转录水平降低45%~70%。以上结果表明大豆-DAD-基因在转基因根组织中已被成功沉默,并且利用改造后的pHellsGate12:GFP载体通过荧光可以对转基因组织进行初步快速筛选。
- Abstract:
- Agrobacterium rhizogenes is able to transform plant genomes and induce the production of hairy roots.In this work, we described the use of Arhizogenes in soybean to rapidly assess gene expression and function. We first cloned the soybean –DAD- gene into pHellsgate12:GFP vector, which was reconstructed by inserted a 35S:GFP:nos expression cassette into SacI digested pHellsGate12, then transformed the DAD-gene fragment into soybean by using this chimeric hairy root transgenic system.The transcription level of DAD in the fluorescence hairy roots were reduced to 45%~70%.The results revealed that the DAD gene was silenced in transgenic hairy roots, and the reconstructed RNAi vector could simplify the progress of positive hairy roots screen.
参考文献/References:
[1]Li J, Todd T C, Trick H N. Rapid in planta evaluation of root expressed transgenes in chimeric soybean plants[J]. Plant Cell Report, 2010, 29(2):113-123
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备注/Memo
基金项目:国家现代农业产业技术体系(CARS-004-PS10);转基因生物新品种培育重大专项(2014ZX08004-002);南京农业大学自然科学重大项目(KYZ201202-3);长江学者和创新团队发展计划(PCSIRT13073);江苏省现代作物生产协同创新中心资助。