Unknown,Transcriptomics,Genomics,Proteomics

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Study of mating type genes and their roles in mating interactions of the basidiomycete Schizophyllum commune

ABSTRACT: Transcriptome changes associated with mating interactions were performed in order to identify signaling components and targets of pheromone response. Two monokaryons (S. commune 12-43 and 4-39), a dikaryon (W22 x 12-43), both semi-compatible mating interactions (Aon: W22 x 4-39; Bon, flat: W21 x 4-39), and different S. commune pheromone receptor recipient strains (Vbar2f, Vbar2t) were analyzed for that purpose. In addition, a S. commune strain showing the thin-phenotype (W22-thin) was investigated to figure out the role of Thn1 in mating. With microarray analysis mRNA expression in different mating interactions of the basidiomycete S. commune was analyzed. Genes which show regulation in the comparison of the two monokaryons 12-43 and 4-39 has been eliminated from other comparisons as strain specific differences. Two biological or technical replicate samples were analyzed for each condition.

ORGANISM(S): Schizophyllum commune

SUBMITTER: Susann Erdmann

PROVIDER: E-GEOD-26401 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Transcriptome and functional analysis of mating in the basidiomycete Schizophyllum commune.

Erdmann Susann S Freihorst Daniela D Raudaskoski Marjatta M Schmidt-Heck Wolfgang W Jung Elke-Martina EM Senftleben Dominik D Kothe Erika E

Eukaryotic cell 20111230 5

In this study, we undertook a functional characterization and transcriptome analysis that enabled a comprehensive study of the mating type loci of the mushroom Schizophyllum commune. Induced expression of both the bar2 receptor and the bap2(2) pheromone gene within 6 to 12 h after mates' contact was demonstrated by quantitative real-time PCR. Similar temporal expression patterns were confirmed for the allelic bbr1 receptor and bbp1 pheromone-encoding genes by Northern hybridization. Interestingl ...[more]

PMID: 22210832

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Project description:Fission yeast cells undergo sexual differentiation in response to nitrogen starvation. In this process haploid M and P cells first mate to form diploid zygotes, which subsequently enter meiosis and sporulate. Prior to mating, M cells secrete M-factor and P-cells secrete P-factor, and these diffusible mating pheromone can activate a signal transduction pathway in the opposite cell type. The pheromone response orchestrates mating and is also required for entry into meiosis. Here we use DNA microarrays to identify genes that are induced by M-factor in P cells and by P-factor in M-cells. The use of a cyr1 genetic background allowed us to study pheromone stimulation independently of nitrogen starvation. We identified a total of 163 genes that were consistently induced more than two-fold by pheromone stimulation. As expected, there was a substantial overlap between the genes induced by M- and P-factor. Surprisingly, we found that pheromone control extended to genes fulfilling their function well beyond the point of entry into meiosis, including numerous genes required for meiotic recombination. A direct comparison of the M- and P-factor induced expression pattern allowed us to identify cell-type specific transcripts, including three new M-specific genes and one new P-specific gene. Finally, our results support the notion that Ste11 is the key transcription factor activated by pheromone signalling. Keywords: dose response Gene expression profiling experiment in which gene expression in pheromone treated cultures was compared to that of untreated control cells. All cultures were growing exponentially in MSL minimal medium. S. pombe h+ cyr1- cells treated with M-factor mating pheromone for 2, 4 and 6 hrs respectively, were compared to non-treated cells. Similarly, S. pombe h- sax2- cyr1- cells treated with P-factor mating pheromone for 2, 4 and 6 hrs, were compared to non-treated cells. For identiofication of cell-type specific gene expression, h+ cyr1- cells were compaired to h+ sxa2- cyr1- cells. This was done both before pheromone treatment (0h/0h) and after 6 hours of pheromone treatment (6h/6h). RNA was extracted and subjected to cDNA expression profiling analysis using the established protocols (Xue et al, Yeast 21, 25-39, 2004).Data normalized with 'Lowess' per chip per spot normalization.

Dataset Information

Study of mating type genes and their roles in mating interactions of the basidiomycete Schizophyllum commune

Publications

Transcriptome and functional analysis of mating in the basidiomycete Schizophyllum commune.

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