The Arabidopsis U-box/ARM repeat E3 ligase AtPUB4 influences growth and degeneration of tapetal cells, and its mutation leads to conditional male sterility

doi:10.1111/tpj.12146

	The Arabidopsis U-box/ARM repeat E3 ligase AtPUB4 influences growth and degeneration of tapetal cells, and its mutation leads to conditional male sterility
	Wang, Hai 1,2; Lu, Yuqing 3; Jiang, Tiantian 1; Berg, Howard 2; Li, Cong 4; Xia, Yiji 1,2
刊名	PLANT JOURNAL
	2013
卷号	74 期号:3 页码:511-523
关键词	pollen tapetum layer Arabidopsis thaliana E3 ubiquitin ligase AtPUB4 male sterility
ISSN号	0960-7412
DOI	10.1111/tpj.12146
通讯作者	Wang, Hai
英文摘要	Pollen formation is a complex developmental process that has been extensively investigated to unravel underlying fundamental developmental mechanisms and for genetic manipulation of the male-sterility trait for hybrid crop production. Here we describe identification of AtPUB4, a Ubox/ARM repeat-containing E3 ubiquitin ligase, as a novel player in male fertility in Arabidopsis. Loss of AtPUB4 function causes hypertrophic growth of the tapetum layer. The Atpub4 mutation also leads to incomplete degeneration of the tapetal cells and strikingly abnormal exine structures of pollen grains. As a result, although the Atpub4 mutant produces viable pollen, the pollen grains adhere to each other and to the remnants of incompletely degenerated tapetal cells, and do not properly disperse from dehisced anthers for successful pollination. We found that the male-sterility phenotype caused by the Atpub4 mutation is temperature-dependent: the mutant plants are sterile when grown at 22 degrees C but are partially fertile at 16 degrees C. Our study also indicates that the AtPUB4-mediated pathway acts in parallel with the brassinosteroid pathway in controlling developmental fates of the tapetal cells to ensure male fertility.
学科主题	Plant Sciences ; PLANT SCIENCES
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000318238500013
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/5046]
专题	作物科学研究所_种质资源保存与研究中心
作者单位	1.Hong Kong Baptist Univ, Dept Biol, Hong Kong, Hong Kong, Peoples R China 2.Donald Danforth Plant Sci Ctr, St Louis, MO 63132 USA 3.Chinese Acad Agr Sci, Inst Crop Sci, Beijing 100081, Peoples R China 4.Chinese Acad Agr Sci, Inst Anim Sci, Beijing 100193, Peoples R China
推荐引用方式 GB/T 7714	Wang, Hai,Lu, Yuqing,Jiang, Tiantian,et al. The Arabidopsis U-box/ARM repeat E3 ligase AtPUB4 influences growth and degeneration of tapetal cells, and its mutation leads to conditional male sterility[J]. PLANT JOURNAL,2013,74(3):511-523.
APA	Wang, Hai,Lu, Yuqing,Jiang, Tiantian,Berg, Howard,Li, Cong,&Xia, Yiji.(2013).The Arabidopsis U-box/ARM repeat E3 ligase AtPUB4 influences growth and degeneration of tapetal cells, and its mutation leads to conditional male sterility.PLANT JOURNAL,74(3),511-523.
MLA	Wang, Hai,et al."The Arabidopsis U-box/ARM repeat E3 ligase AtPUB4 influences growth and degeneration of tapetal cells, and its mutation leads to conditional male sterility".PLANT JOURNAL 74.3(2013):511-523.