Deep-sequencing transcriptome analysis of chilling tolerance mechanisms of a subnival alpine plant, Chorispora bungeana
文献类型：期刊论文
| 作者 | Zhao,Zhiguang1,2; Tan,Lingling1; Dang,Chunyan1; Zhang,Hua1; Wu,Qingbai2; An,Lizhe1 |
| 刊名 | BMC Plant Biology
 |
| 出版日期 | 2012-11-21 |
| 卷号 | 12期号:1 |
| 关键词 | Alpine plant Chorispora bungeana Chilling tolerance Cold acclimation Transcriptome |
| ISSN号 | 1471-2229 |
| DOI | 10.1186/1471-2229-12-222 |
| 通讯作者 | An,Lizhe(lizhean@lzu.edu.cn) |
| 英文摘要 | AbstractBackgroundThe plant tolerance mechanisms to low temperature have been studied extensively in the model plant Arabidopsis at the transcriptional level. However, few studies were carried out in plants with strong inherited cold tolerance. Chorispora bungeana is a subnival alpine plant possessing strong cold tolerance mechanisms. To get a deeper insight into its cold tolerance mechanisms, the transcriptome profiles of chilling-treated C. bungeana seedlings were analyzed by Illumina deep-sequencing and compared with Arabidopsis.ResultsTwo cDNA libraries constructed from mRNAs of control and chilling-treated seedlings were sequenced by Illumina technology. A total of 54,870 unigenes were obtained by de novo assembly, and 3,484 chilling up-regulated and 4,571 down-regulated unigenes were identified. The expressions of 18 out of top 20 up-regulated unigenes were confirmed by qPCR analysis. Functional network analysis of the up-regulated genes revealed some common biological processes, including cold responses, and molecular functions in C. bungeana and Arabidopsis responding to chilling. Karrikins were found as new plant growth regulators involved in chilling responses of C. bungeana and Arabidopsis. However, genes involved in cold acclimation were enriched in chilling up-regulated genes in Arabidopsis but not in C. bungeana. In addition, although transcription activations were stimulated in both C. bungeana and Arabidopsis, no CBF putative ortholog was up-regulated in C. bungeana while CBF2 and CBF3 were chilling up-regulated in Arabidopsis. On the other hand, up-regulated genes related to protein phosphorylation and auto-ubiquitination processes were over-represented in C. bungeana but not in Arabidopsis.ConclusionsWe conducted the first deep-sequencing transcriptome profiling and chilling stress regulatory network analysis of C. bungeana, a subnival alpine plant with inherited cold tolerance. Comparative transcriptome analysis suggests that cold acclimation is not a major chilling tolerance mechanism of C. bungeana. Activation of protein phosphorylation and ubiquitination may confer chilling tolerance to C. bungeana in a more rapid and flexible way than cold acclimation. Such differences may have contributed to the differences in cold tolerance between C. bungeana and Arabidopsis. The results presented in this paper will be informative for gene discovery and the molecular mechanisms related to plant cold tolerance. |
| 收录类别 | BMC |
| 语种 | 英语 |
| WOS记录号 | BMC:10.1186/1471-2229-12-222 |
| 出版者 | BioMed Central |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557245 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | An,Lizhe |
| 作者单位 | 1.School of Life Sciences, Lanzhou University; Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education 2.Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences; State Key Laboratory of Frozen Soil Engineering |
| 推荐引用方式 GB/T 7714 | Zhao,Zhiguang,Tan,Lingling,Dang,Chunyan,et al. Deep-sequencing transcriptome analysis of chilling tolerance mechanisms of a subnival alpine plant, Chorispora bungeana[J]. BMC Plant Biology,2012,12(1). |
| APA | Zhao,Zhiguang,Tan,Lingling,Dang,Chunyan,Zhang,Hua,Wu,Qingbai,&An,Lizhe.(2012).Deep-sequencing transcriptome analysis of chilling tolerance mechanisms of a subnival alpine plant, Chorispora bungeana.BMC Plant Biology,12(1). |
| MLA | Zhao,Zhiguang,et al."Deep-sequencing transcriptome analysis of chilling tolerance mechanisms of a subnival alpine plant, Chorispora bungeana".BMC Plant Biology 12.1(2012). |
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来源：寒区旱区环境与工程研究所
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