UNSPECIFIED. (2003) Response regulator homologues have complementary, light-dependent functions in the Arabidopsis circadian clock. PLANTA, 218 (1). pp. 159-162. ISSN 0032-0935

Full text not available from this repository.

Abstract

TIMING OF CAB EXPRESSION 1 (TOC1) functions with CIRCADIAN CLOCK-ASSOCIATED 1 (CCA1) in a transcriptional feedback loop that is important for the circadian clock in Arabidopsis thaliana (L.) Heynh. TOC1 and its four paralogues, the Arabidopsis PSEUDO-RESPONSE REGULATOR (PRR) genes, are expressed in an intriguing daily sequence. This was proposed to form a second feedback loop, similar to the interlocking clock gene circuits in other taxa. We show that prr9 and prr5 null mutants have reciprocal period defects for multiple circadian rhythms, consistent with subtly altered expression patterns of CCA1 and TOC1. The period defects are conditional on light quality and combine additively in double-mutant plants. Thus PRR9 and PRR5 modulate light input to the circadian clock but are neither uniquely required for rhythm generation nor form a linear series of mutual PRR gene regulation.

Item Type:	Journal Article
Subjects:	S Agriculture > SB Plant culture
Journal or Publication Title:	PLANTA
Publisher:	SPRINGER-VERLAG
ISSN:	0032-0935
Date:	November 2003
Volume:	218
Number:	1
Number of Pages:	4
Page Range:	pp. 159-162
Identification Number:	10.1007/s00425-003-1106-4
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/9106

Data sourced from Thomson Reuters' Web of Knowledge

Request changes to a record

Actions (login required)

View Item