Exploring the transcriptional landscape of plant circadian rhythms using genome tiling arrays.

ABSTRACT:

Background

Organisms are able to anticipate changes in the daily environment with an internal oscillator know as the circadian clock. Transcription is an important mechanism in maintaining these oscillations. Here we explore, using whole genome tiling arrays, the extent of rhythmic expression patterns genome-wide, with an unbiased analysis of coding and noncoding regions of the Arabidopsis genome.

Results

As in previous studies, we detected a circadian rhythm for approximately 25% of the protein coding genes in the genome. With an unbiased interrogation of the genome, extensive rhythmic introns were detected predominantly in phase with adjacent rhythmic exons, creating a transcript that, if translated, would be expected to produce a truncated protein. In some cases, such as

SUBMITTER: Hazen SP 

PROVIDER: S-EPMC2688271 | biostudies-literature | 2009 Feb

REPOSITORIES: biostudies-literature