Podospora anserina
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA12689 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| Other | ||||
| SRR3197700_1.fastq.gz | Fastqsanger.gz | |||
| SRR3197700_2.fastq.gz | Fastqsanger.gz | |||
| SRR3197710_1.fastq.gz | Fastqsanger.gz | |||
| SRR3197710_2.fastq.gz | Fastqsanger.gz |
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Project description:Mutations in the gene for the mitochondrial matrix protease CLPP can cause human Perrault syndrome, which is characterized by male and female infertility, progressive sensorineural deafness, ataxia and leukoencephalopathy. This gene encodes a peptidase that is conserved since bacteria and localizes to mitochondrial matrix in eukaryotes. To compare and validate mouse and human findings, the filamentous fungus Podospora anserina was cultured and protein extracts were analyzed.
2024-06-22 | PXD048640 | Pride
Project description:Abstract BACKGROUND: Mating-type loci in yeasts and ascomycotan filamentous fungi (Pezizomycotina) encode master transcriptional factors that play a critical role in sexual development. Genome-wide analyses of mating-type-specification circuits and mating-type target genes are available in Saccharomyces cerevisiae and Schizosaccharomyces pombe; however, no such analyses have been performed in heterothallic (self-incompatible) Pezizomycotina. The heterothallic fungus Podospora anserina serves as a model for understanding the basic features of mating-type control. Its mat+ and mat- mating types are determined by dissimilar allelic sequences. The mat- sequence contains three genes, designated FMR1, SMR1 and SMR2, while the mat+ sequence contains one gene, FPR1. FMR1 and FPR1 are the major regulators of fertilization, and this study presents a genome-wide view of their target genes and analyzes their target gene regulation. METHODOLOGY/PRINCIPAL FINDINGS: The transcriptomic profiles of the mat+ and mat- strains revealed 157 differentially transcribed genes, and transcriptomic analysis of fmr1(-) and fpr1(-) mutant strains was used to determine the regulatory actions exerted by FMR1 and FPR1 on these differentially transcribed genes. All possible combinations of transcription repression and/or activation by FMR1 and/or FPR1 were observed. Furthermore, 10 additional mating-type target genes were identified that were up- or down-regulated to the same level in mat+ and mat- strains. Of the 167 genes identified, 32 genes were selected for deletion, which resulted in the identification of two genes essential for the sexual cycle. Interspecies comparisons of mating-type target genes revealed significant numbers of orthologous pairs, although transcriptional profiles were not conserved between species. CONCLUSIONS/SIGNIFICANCE: This study represents the first comprehensive genome-wide analysis of mating-type direct and indirect target genes in a heterothallic filamentous fungus. Mating-type transcription factors have many more target genes than are found in yeasts and exert a much greater diversity of regulatory actions on target genes, most of which are not directly related to mating.
2011-12-22 | GSE27297 | GEO
Project description:A general framework for optimization of probes for gene expression microarray and its application to the fungus Podospora anserina
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Project description:Genome-wide gene expression profiling of fertilization competent mycelium in opposite mating types in the heterothallic fungus Podospora anserina.
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Project description:Abstract BACKGROUND: Mating-type loci in yeasts and ascomycotan filamentous fungi (Pezizomycotina) encode master transcriptional factors that play a critical role in sexual development. Genome-wide analyses of mating-type-specification circuits and mating-type target genes are available in Saccharomyces cerevisiae and Schizosaccharomyces pombe; however, no such analyses have been performed in heterothallic (self-incompatible) Pezizomycotina. The heterothallic fungus Podospora anserina serves as a model for understanding the basic features of mating-type control. Its mat+ and mat- mating types are determined by dissimilar allelic sequences. The mat- sequence contains three genes, designated FMR1, SMR1 and SMR2, while the mat+ sequence contains one gene, FPR1. FMR1 and FPR1 are the major regulators of fertilization, and this study presents a genome-wide view of their target genes and analyzes their target gene regulation. METHODOLOGY/PRINCIPAL FINDINGS: The transcriptomic profiles of the mat+ and mat- strains revealed 157 differentially transcribed genes, and transcriptomic analysis of fmr1(-) and fpr1(-) mutant strains was used to determine the regulatory actions exerted by FMR1 and FPR1 on these differentially transcribed genes. All possible combinations of transcription repression and/or activation by FMR1 and/or FPR1 were observed. Furthermore, 10 additional mating-type target genes were identified that were up- or down-regulated to the same level in mat+ and mat- strains. Of the 167 genes identified, 32 genes were selected for deletion, which resulted in the identification of two genes essential for the sexual cycle. Interspecies comparisons of mating-type target genes revealed significant numbers of orthologous pairs, although transcriptional profiles were not conserved between species. CONCLUSIONS/SIGNIFICANCE: This study represents the first comprehensive genome-wide analysis of mating-type direct and indirect target genes in a heterothallic filamentous fungus. Mating-type transcription factors have many more target genes than are found in yeasts and exert a much greater diversity of regulatory actions on target genes, most of which are not directly related to mating. With GPL10116 : 4 conditions each with four biological replicates :mat+, mat-, fpr1-, fmr1-; common reference is a pool of four conditions M48h, M96h, C48h and C96h ; Conditions are labelled in Cy3 and the common reference in Cy5
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Project description:Allorecognition, the capacity to discriminate self from conspecific non-self, is a ubiquitous organismal feature typically governed by genes evolving under balancing selection. Here, we show that in the fungus Podospora anserina, allorecognition loci controlling vegetative incompatibility (het genes), define two reproductively isolated groups through pleiotropic effects on sexual compatibility. These two groups emerge from the antagonistic interactions of the unlinked loci het-r (encoding a NOD-like receptor) and het-v (encoding a methyltransferase and an MLKL/HeLo domain protein). Using a combination of genetic and ecological data, supported by simulations, we provide a concrete and molecularly defined example whereby the origin and coexistence of reproductively isolated groups in sympatry is driven by pleiotropic genes under balancing selection.
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Project description:The transcriptional response to the inactivation of the PaMpk1 and PaMpk2 MAP kinase pathways in Podospora anserina
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Project description:The transcriptional profilling of the thermosensitive self-incompatible het-R het-V strain undergoing cell death by incompatibility
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