W-box and G-box elements play important roles in early senescence of   rice flag leaf

doi:10.1038/srep20881

CORC > 北京大学 > 生命科学学院

	W-box and G-box elements play important roles in early senescence of rice flag leaf
	Liu, Li ; Xu, Wei ; Hu, Xuesong ; Liu, Haoju ; Lin, Yongjun
刊名	SCIENTIFIC REPORTS
	2016
关键词	WRKY TRANSCRIPTION FACTORS STRESS-RESPONSIVE TRANSCRIPTION HARVESTING COMPLEX-II ABSCISIC-ACID ARABIDOPSIS-THALIANA GENE-EXPRESSION DEGRADATION TOLERANCE PROTEINS PROMOTER
DOI	10.1038/srep20881
英文摘要	Plant cis-elements play important roles in global regulation of gene expression. Based on microarray data from rice flag leaves during early senescence, we identified W-box and G-box cis-elements as positive regulators of senescence in the important rice variety Minghui 63. Both cis-elements were bound by leaf senescence-specific proteins in vitro and influenced senescence in vivo. Furthermore, combination of the two elements drove enhanced expression during leaf senescence, and copy numbers of the cis-elements significantly affected the levels of expression. The W-box is the cognate cis-element for WRKY proteins, while the G-box is the cognate cis-element for bZIP, bHLH and NAC proteins. Consistent with this, WRKY, bZIP, bHLH and NAC family members were overrepresented among transcription factor genes up-regulated according during senescence. Crosstalk between ABA, CTK, BR, auxin, GA and JA during senescence was uncovered by comparing expression patterns of senescence up-regulated transcription factors. Together, our results indicate that hormone-mediated signaling could converge on leaf senescence at the transcriptional level through W-box and G-box elements. Considering that there are very few documented early senescence-related cis-elements, our results significantly contribute to understanding the regulation of flag leaf senescence and provide prioritized targets for stay-green trait improvement.; National Natural Science Foundation of China [31571262]; 100 Talents Program of The Chinese Academy of Sciences; SCI(E); PubMed; ARTICLE; yongjunlin@mail.hzau.edu.cn; 20881; 6
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/434994]
专题	生命科学学院
推荐引用方式 GB/T 7714	Liu, Li,Xu, Wei,Hu, Xuesong,et al. W-box and G-box elements play important roles in early senescence of rice flag leaf[J]. SCIENTIFIC REPORTS,2016.
APA	Liu, Li,Xu, Wei,Hu, Xuesong,Liu, Haoju,&Lin, Yongjun.(2016).W-box and G-box elements play important roles in early senescence of rice flag leaf.SCIENTIFIC REPORTS.
MLA	Liu, Li,et al."W-box and G-box elements play important roles in early senescence of rice flag leaf".SCIENTIFIC REPORTS (2016).