转录组分析毛白杨响应氧化胁迫的基因表达模式变化

转录组分析毛白杨响应氧化胁迫的基因表达模式变化

Botanical Research 植物学研究, 2018, 7(2), 186-195 Published Online March 2018 in Hans. http://www.360docs.net/doc/info-c3c127b570fe910ef12d2af90242a8956becaab0.html /journal/br https://http://www.360docs.net/doc/info-c3c127b570fe910ef12d2af90242a8956becaab0.html /10.12677/br.2018.72025

转录组分析毛白杨响应氧化胁迫的基因表达模式变化

转录组分析毛白杨响应氧化胁迫的基因表达模式变化

转录组分析毛白杨响应氧化胁迫的基因表达模式变化

转录组分析毛白杨响应氧化胁迫的基因表达模式变化

文章引用: 李嘉鑫, 李盈, 滕晓瞳, 李聪慧, 李慧, 陆海. 转录组分析毛白杨响应氧化胁迫的基因表达模式变化[J]. 植物学研究, 2018, 7(2): 186-195. DOI: 10.12677/br.2018.72025

Transcriptome Analysis of Gene Expression Patterns of Populus tomentosa in Response to Oxidative Stress

Jiaxin Li, Ying Li, Xiaotong Teng, Conghui Li, Hui Li, Hai Lu

College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing

Received: Mar. 3rd , 2018; accepted: Mar. 21st , 2018; published: Mar. 28th

, 2018

Abstract

In order to understand the molecular mechanism of Populus tomentosa on adaptation to oxidative stress at gene level, the transcriptome analysis of Populus tomentosa leaves under oxidative stress was carried out. GO genes and GO enrichment analysis of KEGG Pathway were analyzed Differen-tially expressed genes showed that there were 3495 total expressed genes between stressed and untamed Populus tomentosa groups, including 1683 up-regulated genes and 1812 down-regulated genes. By comparing the function of GO and KEGG between Populus tomentosa group and un-treated Populus tomentosa group, it was found that the photosystem PSI and PSII related proteins in photosynthesis were significantly down-regulated in the plants after oxidative stress. And pho-tosynthetic membrane, thylakoid membrane structure of the basement membrane accumulation and membrane recombinant protein were significantly downregulated (P < 0.05). Explaining the oxidative stress conditions, chloroplast is the main active oxygen generating site. The massive ac-cumulation of ROS causes oxidative damage to chloroplasts and cells, leading to the decline of photosynthesis-related functions and the damage of the photosynthetic membrane system. Keywords

Populus tomentosa , Oxidative Stress, Photosynthesis, Transcriptome

转录组分析毛白杨响应氧化胁迫的基因表达模式变化

李嘉鑫,李 盈,滕晓瞳,李聪慧,李 慧,陆 海

北京林业大学生物科学与技术学院,北京

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