NDLI: Transcriptome profiling reveals differential transcript abundance in response to chilling stress in Populus simonii

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Transcriptome profiling reveals differential transcript abundance in response to chilling stress in Populus simonii

Content Provider	Springer Nature Link
Author	Song, Yuepeng Chen, Qingqing Ci, Dong Zhang, Deqiang
Copyright Year	2013
Abstract	We report global gene expression patterns of poplar in response to chilling stress. A total of 1,085 significantly differentially expressed genes, involved in photosynthesis, signal transduction, and regulation of transcription, were identified. To understand the gene network underlying the response to chilling stress in the poplar, Populus simonii, we determined the genome transcript expression profile using an Affymetrix GeneChip with 56,000 genes. Our results revealed 11,626 cold-responsive genes, with 5,267 upregulated and 6,359 downregulated. In terms of biological processes, gene ontology (GO) analysis indicated that cold-induced genes were enriched in response to temperature stimulus, reactive oxygen species, and hormone stimulus. GO terms including cellular nitrogen compound metabolic processes, photosynthesis, and generation of precursor metabolites and energy were enriched in the cold-repressed genes. The functional annotation of differentially expressed genes revealed genes involved in photosynthesis, calcium/calmodulin-mediated signal transduction, abscisic acid (ABA) homeostasis and transport, and antioxidant defense systems. Gene expression analysis showed that the majority of genes involved in photosynthesis were repressed, but the THF1 gene was induced, suggesting that it may play an important role in the production of vesicles for leaf development under low-temperature conditions. Several genes involved in calcium/calmodulin-mediated signal transduction, ABA homeostasis and transport, and antioxidant defense systems were significantly induced under chilling stress, suggesting that they may act as positive regulators in the enhanced low-temperature tolerance of poplar. Several transcription factors had divergent expression patterns, suggesting they have variable functional responses to abiotic stress. This profile of global gene expression patterns during chilling stress will be valuable for future studies on the molecular mechanisms of chilling tolerance in woody plants.
Starting Page	1407
Ending Page	1425
Page Count	19
File Format	PDF
ISSN	07217714
Journal	Plant Cell Reports
Volume Number	32
Issue Number	9
e-ISSN	1432203X
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2013-05-08
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Transcriptome profiling Chilling stress Populus simonii Cell Biology Plant Sciences Biotechnology Plant Biochemistry
Content Type	Text
Resource Type	Article
Subject	Plant Science Medicine Agronomy and Crop Science

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Transcriptome profiling reveals differential transcript abundance in response to chilling stress in Populus simonii.

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Expression patterns of WRKY genes in di-haploid Populus simonii × P. nigra in response to salinity stress revealed by quantitative real-time PCR and RNA sequencing

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Transcriptome profiling reveals differential transcript abundance in response to chilling stress in Populus simonii