CHD3 chromatin-remodeling factor PICKLE regulates floral transition   partially via modulating LEAFY expression at the chromatin level in   Arabidopsis

doi:10.1007/s11427-016-5021-x

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	CHD3 chromatin-remodeling factor PICKLE regulates floral transition partially via modulating LEAFY expression at the chromatin level in Arabidopsis
	Fu, Xing ; Li, Chaonan ; Liang, Qing ; Zhou, Yangyang ; He, Hang ; Fan, Liu-Min
刊名	SCIENCE CHINA-LIFE SCIENCES
	2016
关键词	chromatin-remodeling factor PICKLE floral transition LEAFY Arabidopsis FLOWER INITIATION MERISTEM IDENTITY EMBRYONIC TRAITS FRUITFULL RESPONSES APETALA1 GENES AGL24 SOC1 DIFFERENTIATION
DOI	10.1007/s11427-016-5021-x
英文摘要	PICKLE (PKL), a putative CHD3 chromatin remodeling factor, has been suggested to be involved in multiple processes in Arabidopsis. Here, we confirmed the late-flowering phenotype caused by pkl mutation with pkl mutants in two different ecotypes, and investigated the possible mechanisms that account for PKL regulation of flowering time. Quantitative RT-PCR and RNA-seq assays showed that expression of the LEAFY gene (LFY) and a number of LFY-regulated floral homeotic genes were down-regulated in seedlings of the pkl mutants. As predicted, overexpression of LFY restored normal flowering time of pkl mutants. Our results suggest that PKL may be involved in regulating flowering time via LFY expression. To uncover the underlying mechanism, ChIP-PCR using anti-PKL was performed on materials from three developmental stages of seedlings. Our results showed that PKL associated with the genomic sequences of LFY, particularly at 10-day and 25-day after germination. We also showed that loss of PKL affected H3K27me3 level at the promoter of LFY. Taken together, our data suggest that transcriptional regulation of LFY at the chromatin level by PKL may at least partially account for the late-flowering phenotype of pkl mutants.; SCI(E); PubMed; 中国科学引文数据库(CSCD); ARTICLE; lmfan@pku.edu.cn; 5; 516-528; 59
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/434205]
专题	生命科学学院
推荐引用方式 GB/T 7714	Fu, Xing,Li, Chaonan,Liang, Qing,et al. CHD3 chromatin-remodeling factor PICKLE regulates floral transition partially via modulating LEAFY expression at the chromatin level in Arabidopsis[J]. SCIENCE CHINA-LIFE SCIENCES,2016.
APA	Fu, Xing,Li, Chaonan,Liang, Qing,Zhou, Yangyang,He, Hang,&Fan, Liu-Min.(2016).CHD3 chromatin-remodeling factor PICKLE regulates floral transition partially via modulating LEAFY expression at the chromatin level in Arabidopsis.SCIENCE CHINA-LIFE SCIENCES.
MLA	Fu, Xing,et al."CHD3 chromatin-remodeling factor PICKLE regulates floral transition partially via modulating LEAFY expression at the chromatin level in Arabidopsis".SCIENCE CHINA-LIFE SCIENCES (2016).