Dynamic Translational Landscape Revealed by Genome-Wide Ribosome Profiling under Drought and Heat Stress in Potato.
作者信息
Jian Hongju, Wen Shiqi, Liu Rongrong, Zhang Wenzhe, Li Ziyan, Chen Weixi, Zhou Yonghong, Khassanov Vadim, Mahmoud Ahmed M A, Wang Jichun, Lyu Dianqiu
机构信息
College of Agronomy and Biotechnology, Southwest University, Chongqing 400715, China.
State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Chongqing 400715, China.
出版信息
Plants (Basel). 2023 Jun 6;12(12):2232. doi: 10.3390/plants12122232.
The yield and quality of potatoes, an important staple crop, are seriously threatened by high temperature and drought stress. In order to deal with this adverse environment, plants have evolved a series of response mechanisms. However, the molecular mechanism of potato's response to environmental changes at the translational level is still unclear. In this study, we performed transcriptome- and ribosome-profiling assays with potato seedlings growing under normal, drought, and high-temperature conditions to reveal the dynamic translational landscapes for the first time. The translational efficiency was significantly affected by drought and heat stress in potato. A relatively high correlation (0.88 and 0.82 for drought and heat stress, respectively) of the fold changes of gene expression was observed between the transcriptional level and translational level globally based on the ribosome-profiling and RNA-seq data. However, only 41.58% and 27.69% of the different expressed genes were shared by transcription and translation in drought and heat stress, respectively, suggesting that the transcription or translation process can be changed independently. In total, the translational efficiency of 151 (83 and 68 for drought and heat, respectively) genes was significantly changed. In addition, sequence features, including GC content, sequence length, and normalized minimal free energy, significantly affected the translational efficiencies of genes. In addition, 28,490 upstream open reading frames (uORFs) were detected on 6463 genes, with an average of 4.4 uORFs per gene and a median length of 100 bp. These uORFs significantly affected the translational efficiency of downstream major open reading frames (mORFs). These results provide new information and directions for analyzing the molecular regulatory network of potato seedlings in response to drought and heat stress.
相似文献
Genomics Proteomics Bioinformatics. 2017-10
Int J Mol Sci. 2020-8-28
引用本文的文献
Genes (Basel). 2024-8-27
本文引用的文献
J Exp Bot. 2020-9-19
Plant Physiol. 2019-6-27
Bioinformatics. 2018-9-1
Nat Biotechnol. 2018-8-6