Dataset Information
Transcription profiling of fission yeast with deletion or overexpression of ste11 and changes in gene expression after nitrogen starvation of h plus, h minus, h90fus1 and h90ste11 cells to investigate control of gene expression during early sexual differentiation
Ontology highlight
ABSTRACT:
Pheromone signalling is activated by Ste11p-dependent transcription, and in turn enhances some of this transcription in a positive feedback. To obtain a genome-wide view of Ste11p target genes, their cell-type specificity, and their dependence on pheromone, we used DNA microarrays along with different genetic and environmental manipulations of fission yeast cells.We directly compared the transcriptome of homothallic wild-type cells (h90 fus1) with that of ste11 delta mutants under conditions that induce sexual differentiation. To allow for indirect effects of the ste11 delta mutation, we took advantage of the fact that ectopic expression of ste11 can drive cells into sexual differentiation and therefore is expected to cause the expression of Ste11p targets. We thus defined Ste11p targets as those genes whose expression was significantly reduced in a ste11 delta mutant and significantly increased when ste11 is overexpressed in vegetative cells.
This study looked at the effect of deletion or overexpression of ste11, and changes in gene expression after nitrogen starvation of h plus, h minus, h90fus1 and h90ste11 cells.
ORGANISM(S): Schizosaccharomyces pombe
SUBMITTER: Juan Mata
PROVIDER: E-TABM-139 | biostudies-arrayexpress |
REPOSITORIES: biostudies-arrayexpress
Publications
Global roles of Ste11p, cell type, and pheromone in the control of gene expression during early sexual differentiation in fission yeast.
Proceedings of the National Academy of Sciences of the United States of America 20061009 42
Fission yeast cells belong to one of two specialized cell types, M or P. Specific environmental conditions trigger sexual differentiation, which leads to an internal program starting with pheromone signaling between M and P cells, followed by mating, meiosis, and sporulation. The initial steps of this process are controlled by Ste11p, a master transcriptional regulator that activates the expression of cell type-specific genes (only expressed in either M or P cells) as well as genes expressed in ...[more]
