De novo transcriptome characterization and gene expression profiling of the desiccation tolerant moss bryum argenteum following rehydration
文献类型：期刊论文
| 作者 | Gao,Bei1,2; Zhang,Daoyuan1; Li,Xiaoshuang1; Yang,Honglan1; Zhang,Yuanming1; Wood,Andrew J.3 |
| 刊名 | Bmc genomics
 |
| 出版日期 | 2015-05-28 |
| 卷号 | 16期号:1 |
| ISSN号 | 1471-2164 |
| 关键词 | Transcriptome Gene expression Desiccation Bryum Physcomitrella Biological soil crust |
| DOI | 10.1186/s12864-015-1633-y |
| 通讯作者 | Zhang,daoyuan(zhangdy@ms.xjb.ac.cn) |
| 英文摘要 | Abstractbackgroundthe desiccation-tolerant moss bryum argenteum is an important component of the biological soil crusts (bscs) found in the gurbantunggut desert. desiccation tolerance is defined as the ability to revive from the air dried state. to elucidate the molecular mechanisms related to desiccation tolerance, we employed rna-seq and digital gene expression (dge) technologies to study the genome-wide expression profiles of the dehydration and rehydration processes in this important desert plant.resultswe applied a two-step approach to investigate the gene expression profile upon rehydration in the moss bryum argenteum using illumina hiseq2000 sequencing platform. first, a total of 57,247 transcript assembly contigs (tacs) were obtained from 54.79 million reads by de novo assembly, with an average length of 863?bp and n50 of 1,372?bp. among the reconstructed tacs, 36,916 (64.5?%) revealed similarity with existing protein sequences in the public databases. 23,509 and 21,607 tacs were assigned go and kegg annotation information, respectively. second, samples were taken from 3 hydration stages: desiccated (dry), rehydrated 2?h (r2) and rehydrated 24?h (r24), and deg libraries were constructed for differentially expressed genes (degs) discovery. 4,081 and 6,709 degs were identified in r2 and r24, compared with dry, respectively. compared to the desiccated sample, up-regulated genes after two hours of hydration are primarily related to stress responses. go function enrichment network, ekgg metabolic pathway and mapman analysis supports the idea of the rapid recovery of photosynthesis after 24?h of rehydration. we identified 770 transcription factors (tfs) which were classified into 50 tf families. 142 tf transcripts were up-regulated upon rehydration including 23 members of the erf family.conclusionsin this study, we constructed a pioneering, high-quality reference transcriptome in b. argenteum and generated three dge libraries to elucidate the changes of gene expression upon rehydration. expression profiles consistent with the rapid recovery of photosynthesis (at r2) and the re-establishment of a positive carbon balance following rehydration (at r24) were observed. our study will extend our knowledge of bryophyte transcriptomes and provide further insight into the molecular mechanisms related to rehydration and desiccation-tolerance. |
| 语种 | 英语 |
| 出版者 | BioMed Central |
| WOS记录号 | BMC:10.1186/S12864-015-1633-Y |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2374302 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhang,Daoyuan |
| 作者单位 | 1.Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences; Key Laboratory of Biogeography and Bioresource in Arid Land 2.University of Chinese Academy of Sciences 3.Southern Illinois University-Carbondale; Department of Plant Biology |
| 推荐引用方式 GB/T 7714 | Gao,Bei,Zhang,Daoyuan,Li,Xiaoshuang,et al. De novo transcriptome characterization and gene expression profiling of the desiccation tolerant moss bryum argenteum following rehydration[J]. Bmc genomics,2015,16(1). |
| APA | Gao,Bei,Zhang,Daoyuan,Li,Xiaoshuang,Yang,Honglan,Zhang,Yuanming,&Wood,Andrew J..(2015).De novo transcriptome characterization and gene expression profiling of the desiccation tolerant moss bryum argenteum following rehydration.Bmc genomics,16(1). |
| MLA | Gao,Bei,et al."De novo transcriptome characterization and gene expression profiling of the desiccation tolerant moss bryum argenteum following rehydration".Bmc genomics 16.1(2015). |
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来源：中国科学院大学
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