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Authors Zhang, TQ; Zhao, YL; Wang, YC; Liu, ZY; Gao, CQ
Author Full Name Zhang, Tengqian; Zhao, Yulin; Wang, Yucheng; Liu, Zhongyuan; Gao, Caiqiu
Title Comprehensive Analysis of MYB Gene Family and Their Expressions Under Abiotic Stresses and Hormone Treatments in Tamarix hispida
Source FRONTIERS IN PLANT SCIENCE
Language English
Document Type Article
Author Keywords abiotic stress; MYB transcription factor; gene expression; Tamarix hispida; Na+ and K+ content
Keywords Plus TRANSCRIPTION FACTOR GENE; TRANSGENIC ARABIDOPSIS; ABSCISIC-ACID; ENHANCES TOLERANCE; OSMOTIC-STRESS; SALT TOLERANCE; DROUGHT STRESS; PLANTS; OVEREXPRESSION; BIOSYNTHESIS
Abstract The MYB transcription factors (TFs) is a plant TF families, which involves in hormone signal transduction, and abiotic stress tolerance, etc. However, there are few studies on the MYB TFs family and its regulatory mechanism in Tamarix hispida. In this study, 14 MYB genes (named ThMYB1 - ThMYB14) were cloned and characterized from T. hispida. The transcription profiles of ThMYBs in T. hispida under different abiotic stress conditions were monitored using qRT-PCR. Most of studied ThMYBs were significantly downregulated and/or upregulated by salt and osmotic stress, ABA, GA3 and JA treatments in at least one organ. Especially, ThMYB13 was induced in the leaves and roots of T. hispida when exposed to NaCl treatment at all study periods, indicating that it may involve in salt stress. To further study ThMYB13 function, ThMYB13 overexpression and knock-down plants and control plants transformed with an empty pROKII were obtained using a transient transformation system. Overexpression of ThMYB13 in T. hispida displayed the lowest O2-, H2O2 and MDA accumulation, minimal cell death, the most stable K+/Na+ ratio and the lowest electrolyte leakage rate among the three kinds of transient expression in T. hispida. Conversely, the RNAi-silencing, transiently transformed plants displayed the opposite physiological changes. Therefore, ThMYB13 might play a role in salt stress tolerance in transgenic T. hispida plants.
Author Address [Zhang, Tengqian; Wang, Yucheng; Liu, Zhongyuan; Gao, Caiqiu] Northeast Forestry Univ, State Key Lab Tree Genet & Breeding, Harbin, Heilongjiang, Peoples R China; [Zhao, Yulin] Taiyuan Bot Garden, Taiyuan, Shanxi, Peoples R China
Reprint Address Gao, CQ (reprint author), Northeast Forestry Univ, State Key Lab Tree Genet & Breeding, Harbin, Heilongjiang, Peoples R China.
E-mail Address gaocaiqiu@nefu.edu.cn
Funding Agency and Grant Number Heilongjiang Province Outstanding Youth Science Foundation [JC2017004]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China [31370676]
Funding Text This work was supported by Heilongjiang Province Outstanding Youth Science Foundation (JC2017004) and the National Natural Science Foundation of China (No. 31370676).
Times Cited 3
Total Times Cited Count (WoS, BCI, and CSCD) 3
Publisher FRONTIERS MEDIA SA
Publisher City LAUSANNE
Publisher Address AVENUE DU TRIBUNAL FEDERAL 34, LAUSANNE, CH-1015, SWITZERLAND
ISSN 1664-462X
29-Character Source Abbreviation FRONT PLANT SCI
ISO Source Abbreviation Front. Plant Sci.
Publication Date SEP 19
Year Published 2018
Volume 9
Article Number 1303
Digital Object Identifier (DOI) 10.3389/fpls.2018.01303
Page Count 13
Web of Science Category Plant Sciences
Subject Category Plant Sciences
Document Delivery Number GU0YO
Unique Article Identifier WOS:000444980900001
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