Authors: Haikui Chen Yang Feng Lina Wang Takahiro Yonezawa M James C Crabbe Xiu Zhang Yang Zhong
Publish Date: 2014/10/31
Volume: 42, Issue: 3, Pages: 639-649
Abstract
UltravioletB UVB is a natural component of the solar radiation Due to its high energy low dosages of UVB can bring huge potential damage effect to organisms Despite much research that has analyzed the gene expression changes of plants that under UVB radiation the transcriptome response of Lycium ruthenicum under the UVB induction is still unavailable The aim of our study was to identify UVB responsive genes and gain an insight into the underlying genetic basis of the pathobiology of UVB related damage We collected leaf samples from L ruthenicum with and without UVB exposure and then performed a transcriptome profiling to comprehensively investigate their expression signatures By employing the high throughput RNAsequencing analysis of samples with and without UVB exposure we identified 1913 upregulated and 536 downregulated genes at least by twofold changes The activity of antioxidant enzyme related genes including the superoxide dismutase was decreased genes related to the synthesis of secondary metabolites and defense responses such as cinnamyl alcohol dehydrogenase chalconeflavanone isomerase and dihydroflavonol reductase were also downregulated The expression patterns of 14 randomly selected genes resulted from quantitative realtime PCR were basically consistent with their transcript abundance changes identified by RNAsequencing We found that several biological pathways related to biotic and abiotic stresses including cell defense photosynthesis processes energy metabolism were involved in the process of UVB stress response A genomewide screening of gene deregulation under UVB induction would provide an insight into the understanding of the molecular bases and pathogenesis of UVB responsesThis work was supported by Fermentation Engineering and Biotechnology Key Lab of Beifang Universiy of Nationalities of the State Ethnic Affairs Commission SEAC of the People’s Republic of China 2014 year and Ningxia Higher School Scientific research project NoNGY20140155
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