气候变化领域集成服务门户(CCPortal): Genome-Wide DNA Methylation Dynamics During Drought Responsiveness in Tibetan Hulless Barley

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DOI	10.1007/s00344-022-10903-y
	Genome-Wide DNA Methylation Dynamics During Drought Responsiveness in Tibetan Hulless Barley
	Jiabu, Dunzhu; Yu, Mingzhai; Xu, Qijun; Yang, Haizhen; Mu, Wang; Basang, Yuzhen
发表日期	2023
ISSN	0721-7595
EISSN	1435-8107
起始页码	4391
结束页码	4401
卷号	42 期号:7
英文摘要	Differences in drought stress tolerance within diverse grass genotypes have been attributed to epigenetic modifications. DNA methylation is an important epigenetic alteration regulating responses to drought stress. However, its effects on drought tolerance are poorly understood in Tibetan hulless barley. Here, bisulfite sequencing was conducted to profile the DNA methylation patterns of drought-tolerant variety (XL) and drought-sensitive (DQ) under drought and control conditions. A total of 5843 million reads were generated. We found the significant genome-wide changes in CHH methylation rates between XL and DQ, while CG or CHG methylation rates did not. Besides that, the two contrasting varieties do reveal distinct responses to drought stress in antioxidant activities and differentially methylated regions (DMRs). Genes in drought-tolerant varieties XL are rapidly and significantly methylated when exposed to drought stimulus. These DMRs-related genes in XL are significantly enriched in defense response and response to stimuli via gene-ontology enrichment analysis. Then, we focused on 1003 transcription factors and identified 15 specific DMRs-related transcription factors exhibiting specific methylation changes under drought stimuli. Finally, we identified three DMRs-related TFs (HvRR12, HvRR2, and HvCSP41B), where Arabidopsis homologs involve in responses to drought conditions. Altogether, abiotic stresses could be rapidly respond and mediated by methylation of transcription factors in hulless barely.
关键词	Hulless Barley Drought stress DNA methylation Transcription factors
英文关键词	COMPARATIVE EXPRESSION ANALYSIS; RICE; VARIETIES; PATTERNS; STRESSES; GROWTH; GENES
WOS研究方向	Plant Sciences
WOS记录号	WOS:000929396400001
来源期刊	JOURNAL OF PLANT GROWTH REGULATION
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283631
作者单位	Tibet Academy of Agriculture & Animal Husbandry Sciences
推荐引用方式 GB/T 7714	Jiabu, Dunzhu,Yu, Mingzhai,Xu, Qijun,et al. Genome-Wide DNA Methylation Dynamics During Drought Responsiveness in Tibetan Hulless Barley[J],2023,42(7).
APA	Jiabu, Dunzhu,Yu, Mingzhai,Xu, Qijun,Yang, Haizhen,Mu, Wang,&Basang, Yuzhen.(2023).Genome-Wide DNA Methylation Dynamics During Drought Responsiveness in Tibetan Hulless Barley.JOURNAL OF PLANT GROWTH REGULATION,42(7).
MLA	Jiabu, Dunzhu,et al."Genome-Wide DNA Methylation Dynamics During Drought Responsiveness in Tibetan Hulless Barley".JOURNAL OF PLANT GROWTH REGULATION 42.7(2023).