Arabidopsis thaliana SEED DORMANCY 4-LIKE regulates dormancy and germination by mediating the gibberellin pathway

doi:10.1093/jxb/erz471

	Arabidopsis thaliana SEED DORMANCY 4-LIKE regulates dormancy and germination by mediating the gibberellin pathway
	Cao, Hong ; Han, Yi 1,2; Li, Jingyi 2; Ding, Meng 2; Li, Yu 2; Li, Xiaoying 2; Chen, Fengying ; Soppe, Wim J. J.; Liu, Yongxiu
	2020
发表期刊	JOURNAL OF EXPERIMENTAL BOTANY
ISSN	0022-0957
卷号	71 期号:3 页码:919-933
摘要	The molecular mechanisms underlying seed dormancy and germination are not fully understood. Here, we show that Arabidopsis thaliana SEED DORMANCY 4-LIKE (AtSdr4L) is a novel specific regulator of dormancy and germination. AtSdr4L encodes a protein with an unknown biochemical function that is localized in the nucleus and is expressed specifically in seeds. Loss of function of AtSdr4L results in increased seed dormancy. The germination of freshly harvested seeds of the Atsdr4l mutant is insensitive to gibberellin (GA). After-ripened mutant seeds are hypersensitive to the GA biosynthesis-inhibitor paclobutrazol but show unaltered sensitivity to abscisic acid. Several GA biosynthesis genes and GA-regulated cell wall remodeling genes are down-regulated in the mutant in both dormant and after-ripened seeds. These results suggest that the Atsdr4l mutation causes both decreased GA biosynthesis and reduced responses. In addition, a genetic analysis indicated that AtSdr4L is epistatic to DELAY OF GERMINATION1 (DOG1) for dormancy and acts upstream of RGA-LIKE 2 (RGL2) in the GA pathway. We propose that AtSdr4L regulates seed dormancy and germination by mediating both the DOG1 and GA pathways.
关键词	Abscisic acid Arabidopsis thaliana AtSdr4L DOG1 gibberellin pathway seed dormancy seed germination
学科领域	Plant Sciences
DOI	10.1093/jxb/erz471
收录类别	SCI
语种	英语
WOS关键词	2C PROTEIN PHOSPHATASES ; ACIDIC PHYTOHORMONES ; FUNCTIONAL-ANALYSIS ; LOW-TEMPERATURE ; GENE ; ENCODES ; BIOSYNTHESIS ; EXPRESSION ; MUTANTS ; SLEEPY1
WOS研究方向	Plant Sciences
WOS记录号	WOS:000515119200017
出版者	OXFORD UNIV PRESS
文献子类	Article
出版地	OXFORD
EISSN	1460-2431
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31071063, 31571257] ; National Basic Research Program of ChinaNational Basic Research Program of China [2014CB943400]
作者邮箱	yongxiu@ibcas.ac.cn
引用统计	被引频次：33[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/21897
专题	中科院植物分子生理学重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, Key Lab Plant Mol Physiol, Beijing 100093, Peoples R China 2.Shandong Prov Ctr Forest Tree Germplasm Resources, Jinan 250102, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Soppe, Wim J. J.] Max Planck Inst Plant Breeding Res, Dept Plant Breeding & Genet, D-50829 Cologne, Germany 5.Soppe, Wim J. J.] Rijk Zwaan, NL-2678 ZG De Lier, Netherlands
推荐引用方式 GB/T 7714	Cao, Hong,Han, Yi,Li, Jingyi,et al. Arabidopsis thaliana SEED DORMANCY 4-LIKE regulates dormancy and germination by mediating the gibberellin pathway[J]. JOURNAL OF EXPERIMENTAL BOTANY,2020,71(3):919-933.
APA	Cao, Hong.,Han, Yi.,Li, Jingyi.,Ding, Meng.,Li, Yu.,...&Liu, Yongxiu.(2020).Arabidopsis thaliana SEED DORMANCY 4-LIKE regulates dormancy and germination by mediating the gibberellin pathway.JOURNAL OF EXPERIMENTAL BOTANY,71(3),919-933.
MLA	Cao, Hong,et al."Arabidopsis thaliana SEED DORMANCY 4-LIKE regulates dormancy and germination by mediating the gibberellin pathway".JOURNAL OF EXPERIMENTAL BOTANY 71.3(2020):919-933.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Cao-2020-Arabidopsis（7223KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览请求全文