Circadian and diurnal expression data of Synechococcus

ABSTRACT: In the unicellular cyanobacterium, Synechococcus elongatus PCC 7942, essentially all promoter activities are under the control of the circadian clock in continuous light (LL) conditions. Here, we employed high-density oligonucleotide arrays to explore comprehensive profiles of genome-wide Synechococcus gene expression in wild type, kaiABC-null and kaiC-overexpressor strains under LL and continuous dark (DD) conditions. In the wild type strain more than 30% of transcripts significantly oscillated in a circadian fashion, peaking at subjective dawn and dusk. Such circadian control was nullified in kaiABC-null strains. Although KaiC has been proposed to globally repress gene expression, our analysis revealed that dawn expressing genes were upregulated by kaiC-overexpression, such that the cloc

ORGANISM(S): Synechococcus elongatus PCC 7942

SUBMITTER: Hideo Iwasaki 

PROVIDER: E-GEOD-14225 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress