干旱区生态环境知识资源中心(Arid): Key factors for differential drought tolerance in two contrasting wild materials of Artemisia wellbyi identified using comparative transcriptomics

Arid

DOI	10.1186/s12870-022-03830-3
	Key factors for differential drought tolerance in two contrasting wild materials of Artemisia wellbyi identified using comparative transcriptomics
	Liu, Huan; Wang, Qiyu; Wang, Jinglong; Liu, Yunfei; Renzeng, Wangdui; Zhao, Guiqin; Niu, Kuiju
通讯作者	Liu, H
来源期刊	BMC PLANT BIOLOGY
ISSN	1471-2229
出版年	2022
卷号	22 期号:1
英文摘要	Background Drought is a significant condition that restricts vegetation growth on the Tibetan Plateau. Artemisia wellbyi is a unique semi-shrub-like herb in the family Compositae, which distributed in northern and northwest of Tibetan Plateau. It is a dominant species in the community that can well adapt to virous environment stress, such as drought and low temperature. Therefore, A. wellbyi. has a potential ecological value for soil and water conservation of drought areas. Understanding the molecular mechanisms of A. wellbyi. that defense drought stress can acquire the key genes for drought resistance breeding of A. wellbyi. and provide a theoretical basis for vegetation restoration of desertification area. However, they remain unclear. Thus, our study compared the transcriptomic characteristics of drought-tolerant 11 and drought-sensitive 6 material of A. wellbyi under drought stress. Results A total of 4875 upregulated and 4381 downregulated differentially expressed genes (DEGs) were induced by drought in the tolerant material; however, only 1931 upregulated and 4174 downregulated DEGs were induced by drought in the sensitive material. The photosynthesis and transcriptional regulation differed significantly with respect to the DEGs number and expression level. We found that CDPKs (calmodulin-like domain protein kinases), SOS3 (salt overly sensitive3), MAPKs (mitogen-activated protein kinase cascades), RLKs (receptor like kinase), and LRR-RLKs (repeat leucine-rich receptor kinase) were firstly involved in response to drought stress in drought tolerant A. wellbyi. Positive regulation of genes associated with the metabolism of ABA (abscisic acid), ET (ethylene), and IAA (indole acetic acid) could play a crucial role in the interaction with other transcriptional regulatory factors, such as MYBs (v-myb avian myeloblastosis viral oncogene homolog), AP2/EREBPs (APETALA2/ethylene-responsive element binding protein family), WRKYs, and bHLHs (basic helix-loop-helix family members) and receptor kinases, and regulate downstream genes for defense against drought stress. In addition, HSP70 (heat shock protein70) and MYB73 were considered as the hub genes because of their strong association with other DEGs. Conclusions Positive transcriptional regulation and negative regulation of photosynthesis could be associated with better growth performance under drought stress in the drought-tolerant material. In addition, the degradation of sucrose and starch in the tolerant A. wellbyi to alleviate osmotic stress and balance excess ROS. These results highlight the candidate genes that are involved in enhancing the performance of drought-tolerant A. wellbyi and provide a theoretical basis for improving the performance of drought-resistant A. wellbyi.
英文关键词	Tibetan Plateau Artemisia wellbyi Drought stress Transcriptional regulation
类型	Article
语种	英语
开放获取类型	Green Submitted, gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000854621900003
WOS关键词	ABSCISIC-ACID ; STRESS-RESPONSE ; 5-AMINOLEVULINIC ACID ; ECTOPIC EXPRESSION ; GENE ; PROTEIN ; PHOTOSYNTHESIS ; BIOSYNTHESIS ; RESISTANCE ; SEEDLINGS
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392012
推荐引用方式 GB/T 7714	Liu, Huan,Wang, Qiyu,Wang, Jinglong,et al. Key factors for differential drought tolerance in two contrasting wild materials of Artemisia wellbyi identified using comparative transcriptomics[J],2022,22(1).
APA	Liu, Huan.,Wang, Qiyu.,Wang, Jinglong.,Liu, Yunfei.,Renzeng, Wangdui.,...&Niu, Kuiju.(2022).Key factors for differential drought tolerance in two contrasting wild materials of Artemisia wellbyi identified using comparative transcriptomics.BMC PLANT BIOLOGY,22(1).
MLA	Liu, Huan,et al."Key factors for differential drought tolerance in two contrasting wild materials of Artemisia wellbyi identified using comparative transcriptomics".BMC PLANT BIOLOGY 22.1(2022).