Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1191219 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR31523470_1.fastq.gz | Fastqsanger.gz | |||
| SRR31523470_2.fastq.gz | Fastqsanger.gz |
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Project description:Transcriptomic response of Podospora anserina to bacterial and fungal non self
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Project description:A whole genome microarray approach has been engaged in the heterothallic euascomycete Podospora anserina to identify genes that are differentially expressed beetwen a wild type kinetics of sexual reproduction and two mutant strains ∆RID and ∆SMR1.
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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.
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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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