Integrated regulatory network reveals the early salt tolerance mechanism of Populus euphratica

Jiafei Chen, Jin Zhang, Jianjun Hu, Wenwei Xiong, Chunguang Du, Mengzhu Lu

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Salinization is one of the major factors that threaten the existence of plants worldwide. Populus euphratica has been deemed to be a promising candidate for stress response research because of its high capacity to tolerate extreme salt stress. We carried out a genome-wide transcriptome analysis to identify the differentially expressed genes (DEGs) response to salt shock and elucidate the early salt tolerance mechanisms in P. euphratica. Both hierarchical clustering and DEG analysis demonstrated a predominant variation from time-course rather than NaCl intensity within 24 hours salt shock. Among the identified 1,678 salt-responsive DEGs, 74.1% (1,244) have not been reported before. We further created an integrated regulatory gene network of the salt response in P. euphratica by combining DEGs, transcription factors (TFs), Helitrons, miRNAs and their targets. The prominent pathways in this network are plant hormone transduction, starch and sucrose metabolism, RNA transport, protein processing in endoplasmic reticulum, etc. In addition, the network indicates calcium-related genes play key roles in P. euphratica response to salt shock. These results illustrated an overview of the systematic molecular response in P. euphratica under different intensities of salt shock and revealed the complex regulatory mechanism.

Original languageEnglish
Article number6769
JournalScientific Reports
Volume7
Issue number1
DOIs
StatePublished - 1 Dec 2017

Fingerprint

Populus euphratica
salt tolerance
salts
genes
molecular systematics
transport proteins
transcriptomics
plant hormones
endoplasmic reticulum
salt stress
stress response
transcription factors
starch
sucrose
calcium
metabolism
genome

Cite this

Chen, Jiafei ; Zhang, Jin ; Hu, Jianjun ; Xiong, Wenwei ; Du, Chunguang ; Lu, Mengzhu. / Integrated regulatory network reveals the early salt tolerance mechanism of Populus euphratica. In: Scientific Reports. 2017 ; Vol. 7, No. 1.
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Integrated regulatory network reveals the early salt tolerance mechanism of Populus euphratica. / Chen, Jiafei; Zhang, Jin; Hu, Jianjun; Xiong, Wenwei; Du, Chunguang; Lu, Mengzhu.

In: Scientific Reports, Vol. 7, No. 1, 6769, 01.12.2017.

Research output: Contribution to journalArticle

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