XING Jin-cheng,SUN Chen-xi,HONG Li-zhou,et al.Expression Patterns of Soybean Transcription Factor GmbZIP60 in Response to Abiotic Stresses[J].Soybean Science,2018,37(01):45-49.[doi:10.11861/j.issn.1000-9841.2018.01.0045]
大豆转录因子GmbZIP60对非生物胁迫的表达模式分析
- Title:
- Expression Patterns of Soybean Transcription Factor GmbZIP60 in Response to Abiotic Stresses
- Keywords:
- Soybean; bZIP transcription factor; Abiotic stress
- 分类号:
- S565.1
- 文献标志码:
- A
- 摘要:
- bZIP基因在植物响应非生物胁迫过程中发挥重要的调控作用。前期试验已经从大豆中克隆到一个bZIP基因GmbZIP60Genebank Accession No:DQ787038),并成功转化到拟南芥中。本研究在此基础上,利用qRT-PCR和GUS组织化学染色法研究了高温(37℃)、低温(4℃)、干旱(PEG6000)、NaCl(200 mmol·L -1)和ABA(100 mg·L -1)处理对GmbZIP60表达的影响。结果表明:高温、低温、干旱和NaCl胁迫处理下,GmbZIP60表达量显著降低,分别变为对照组的0.07,0.25,0.36和0.13倍,而ABA处理对GmbZIP60表达量影响不显著,GUS染色结果与荧光定量PCR结果一致。研究认为,GmbZIP60可能以负调控的方式参与大豆抗高盐、干旱、高温、低温等非生物胁迫的应答反应。本研究为进一步鉴定和克隆大豆逆境应答关键基因、揭示大豆抗逆分子机制和大豆抗逆性基因工程改良提供了有益借鉴。
- Abstract:
- bZIP genes play significant roles in the response to abiotic stresses. We have cloned a bZIP gene named as GmbZIP60 (Genebank,Accession, No:DQ787038) from soybean, and transformed it into Arabidopsis thaliana. Then on the base of these, this paper studied the GmbZIP60 gene expression profiling in Arabidopsis seedlings under the treatments of PEG, high-temperature(37℃), low-temperature(4℃), high-salt(PEG6000) and ABA(100 mg·L -1) by qRT-PCR and GUS histochemical staining. The fluorescence quantitative RT-PCR results showed that the expression of GmbZIP60 genes were down-regulated by PEG, high-temperature, low-temperature and salt treatments respectively. The results of GUS staining were agree with fluorescence quantitative RT-PCR. This indicated that GmbZIP60 might be involved in the responsing to abiotic stresses such as high salinity, drought, high temperature and low temperature. This study laid the foundation for revealing the molecular mechanism of soybean resistance and genetic engineering improvement of soybean resistance.
参考文献/References:
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备注/Memo
收稿日期:2017-08-09