Constitutive expression of CIR1 (RVE2) affects several   circadian-regulated processes and seed germination in Arabidopsis

doi:10.1111/j.1365-313X.2007.03156.x

CORC > 北京大学 > 生命科学学院

	Constitutive expression of CIR1 (RVE2) affects several circadian-regulated processes and seed germination in Arabidopsis
	Zhang, Xiangbo ; Chen, Yanhui ; Wang, Zhi-Yong ; Chen, Zhangliang ; Gu, Hongya ; Qu, Li-Jia
刊名	plant journal
	2007
关键词	MYB-related transcription factor circadian rhythm oscillator hypocotyl elongation seed germination LOOP-HELIX PROTEIN PHYTOCHROME-B TRANSCRIPTION FACTOR FUNCTIONAL-ANALYSIS GENE-EXPRESSION MOLECULAR-BASES CRYPTOCHROME 1 CLOCK RHYTHMS THALIANA
DOI	10.1111/j.1365-313X.2007.03156.x
英文摘要	Circadian clocks are endogenous auto-regulatory mechanisms that allow organisms, from bacteria to humans, to advantageously time a wide range of activities within 24 h environmental cycles. Here we report the identification and characterization of an MYB-related gene, designated Circadian 1 (CIRl), that is involved in circadian regulation in Arabidopsis. Expression of CIR1 is transiently induced by light and oscillates with a circadian rhythm. The rhythmic expression of CIR1 is controlled by the central oscillator. Constitutive expression of CIR1 resulted in a shorter period length for the rhythms of four central oscillator components, and much lower amplitude for the rhythms of central oscillator components CCA I and LHY. Furthermore, CIR1 over-expression severely affected the circadian rhythms of its own RNA and those of the slave oscillator EPR1 and effector genes Lhcb and CAT3. Plants that constitutively expressed CIR1 displayed delayed flowering, longer hypocotyls and reduced seed germination in the dark. These results suggest that CIR1 is possibly part of a regulatory feedback loop that controls a subset of the circadian outputs and modulates the central oscillator.; Plant Sciences; SCI(E); EI; PubMed; 31; ARTICLE; 3; 512-525; 51
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/198288]
专题	生命科学学院
推荐引用方式 GB/T 7714	Zhang, Xiangbo,Chen, Yanhui,Wang, Zhi-Yong,et al. Constitutive expression of CIR1 (RVE2) affects several circadian-regulated processes and seed germination in Arabidopsis[J]. plant journal,2007.
APA	Zhang, Xiangbo,Chen, Yanhui,Wang, Zhi-Yong,Chen, Zhangliang,Gu, Hongya,&Qu, Li-Jia.(2007).Constitutive expression of CIR1 (RVE2) affects several circadian-regulated processes and seed germination in Arabidopsis.plant journal.
MLA	Zhang, Xiangbo,et al."Constitutive expression of CIR1 (RVE2) affects several circadian-regulated processes and seed germination in Arabidopsis".plant journal (2007).