干旱区生态环境知识资源中心(Arid): Comparative transcriptome analysis reveals unique genetic adaptations conferring salt tolerance in a xerohalophyte

Arid

DOI	10.1071/FP18295
	Comparative transcriptome analysis reveals unique genetic adaptations conferring salt tolerance in a xerohalophyte
	Chai, Wei-Wei 1,2; Wang, Wen-Ying 1,2; Ma, Qing 1,2; Yin, Hong-Ju 1,2; Hepworth, Shelley R.1,2,3; Wang, Suo-Min 1,2
通讯作者	Wang, Suo-Min
来源期刊	FUNCTIONAL PLANT BIOLOGY
ISSN	1445-4408
EISSN	1445-4416
出版年	2019
卷号	46 期号:7 页码:670-683
英文摘要	Most studies on salt tolerance in plants have been conducted using glycophytes like Arabidopsis thaliana (L.) Heynh., with limited resistance to salinity. The xerohalophyte Zygophyllum xanthoxylum (Bunge) Engl. is a salt-accumulating desert plant that efficiently transports Na+ into vacuoles to manage salt and exhibits increased growth under salinity conditions, suggesting a unique transcriptional response compared with glycophytes. We used transcriptome profiling by RNA-seq to compare gene expression in roots of Z. xanthoxylum and A. thaliana under 50 mM NaCl treatments. Gene Ontology (GO) functional annotation and Kyoto Encyclopedia of Genes and Genomes (KEGG) metabolic pathway analysis suggested that 50 mM NaCl was perceived as a stimulus for Z. xanthoxylum whereas a stress for A. thaliana. Exposure to 50 mM NaCl caused metabolic shifts towards gluconeogenesis to stimulate growth of Z. xanthoxylum, but triggered defensive systems in A. thaliana. Compared with A. thaliana, a vast array of ion transporter genes was induced in Z. xanthoxylum, revealing an active strategy to uptake Na+ and nutrients from the environment. An ascorbate-glutathione scavenging system for reactive oxygen species was also crucial in Z. xanthoxylum, based on high expression of key enzyme genes. Finally, key regulatory genes for the biosynthesis pathways of abscisic acid and gibberellin showed distinct expression patterns between the two species and auxin response genes were more active in Z. xanthoxylum compared with A. thaliana. Our results provide an important framework for understanding unique patterns of gene expression conferring salt resistance in Z. xanthoxylum.
英文关键词	glycophyte RNA-seq salt response stimulus xerohalophyte Zygophyllum xanthoxylum
类型	Article
语种	英语
国家	Peoples R China ; Canada
收录类别	SCI-E
WOS记录号	WOS:000476795600007
WOS关键词	STRESS TOLERANCE ; GLUTATHIONE TRANSFERASE ; ZYGOPHYLLUM-XANTHOXYLUM ; ARABIDOPSIS-THALIANA ; ABIOTIC STRESS ; DROUGHT TOLERANCE ; OXIDATIVE STRESS ; K+ HOMEOSTASIS ; NA+ TRANSPORT ; SAUR PROTEINS
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215853
作者单位	1.Lanzhou Univ, Coll Pastoral Agr Sci & Technol, State Key Lab Grassland Agroecosyst, Lanzhou 730020, Gansu, Peoples R China; 2.Lanzhou Univ, Coll Pastoral Agr Sci & Technol, Key Lab Grassland Livestock Ind Innovat, Minist Agr & Rural Affairs, Lanzhou 730020, Gansu, Peoples R China; 3.Carleton Univ, Inst Biochem, Dept Biol, Ottawa, ON, Canada
推荐引用方式 GB/T 7714	Chai, Wei-Wei,Wang, Wen-Ying,Ma, Qing,et al. Comparative transcriptome analysis reveals unique genetic adaptations conferring salt tolerance in a xerohalophyte[J]. 兰州大学,2019,46(7):670-683.
APA	Chai, Wei-Wei,Wang, Wen-Ying,Ma, Qing,Yin, Hong-Ju,Hepworth, Shelley R.,&Wang, Suo-Min.(2019).Comparative transcriptome analysis reveals unique genetic adaptations conferring salt tolerance in a xerohalophyte.FUNCTIONAL PLANT BIOLOGY,46(7),670-683.
MLA	Chai, Wei-Wei,et al."Comparative transcriptome analysis reveals unique genetic adaptations conferring salt tolerance in a xerohalophyte".FUNCTIONAL PLANT BIOLOGY 46.7(2019):670-683.