Comparative analysis of H3K4 and H3K27 trimethylations in two contrasting Tibetan hulless barely varieties on powdery mildew infection
文献类型： 外文期刊
作者： Zha, Sang 1 ; Yang, Chunbao 1 ; Zeng, Xingquan 1 ; Li, Zeqing 4 ; Wang, Yulin 1 ; Yuan, Hongjun 1 ; Yu, Mingzhai 1 ; Xu, 1 ;
作者机构： 1.State Key Lab Hulless Barley & Yak Germplasm Reso, Lhasa 850002, Peoples R China
2.Tibet Acad Agr & Anim Husb Sci Lhasa, Res Inst Agr, Tibet 850002, Peoples R China
3.Tibet Acad Agr & Anim Husb Sci, Lhasa 850002, Tibet, Peoples R China
4.Wuhan Igenebook Biotechnol Co Ltd, Wuhan 430000, Peoples R China
5.Tibet Acad Agr & Anim Husb Sci, Agr Res Inst, Lhasa City 850002, Peoples R China
关键词： Hulless barley; Powdery mildew; Histone modification
期刊名称：JOURNAL OF PLANT PATHOLOGY （ 影响因子：1.729； 五年影响因子：1.681 ）
ISSN： 1125-4653
年卷期：
页码：
收录情况： SCI
摘要： Powdery mildew has been recognized as a destructive foliar disease for Tibetan hulless barley and causes huge economic losses every year. However, little is known about the genetic and molecular basis of resistance to powdery mildew in hulless barley, especially the epigenetic mechanism. To understand the change patterns of histone modification after pathogen inoculation, we performed a genome-wide analysis of H3K4 and H3K27 trimethylations of samples from five time points using two different barley varieties (G7 is resistant to powdery mildew and Z13 is susceptible). By integration analysis of ChIP-seq and transcriptome data, we found that more than 80% of differential expressed genes may be regulated by differentially chromatin modification, suggesting that epigenetic changes have an important regulatory role in resistance response to powdery mildew. Our study provides a first glimpse into epigenetic regulation in disease response in barley, and these data represent a resource to the community for future exploitation of molecular mechanisms underlying disease resistance response.
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