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Transcriptional activity and epigenetic regulation of transposable elements in the symbiotic fungus Rhizophagus irregularis

ABSTRACT: Transcriptional activity and epigenetic regulation of transposable elements in the symbiotic fungus Rhizophagus irregularis

PROVIDER: PRJNA722321 | ENA |

REPOSITORIES: ENA

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Transcriptional activity and epigenetic regulation of transposable element in the symbiotic fungus Rhizophagus irregularis

Project description:Arbuscular mycorrhizal (AM) fungi form mutualistic relationships with most land plant species. AM fungi have long been considered as ancient asexuals. Long-term clonal evolution would be remarkable for a eukaryotic lineage and suggests the importance of alternative mechanisms to promote genetic variability facilitating adaptation. Here, we assessed the potential of transposable elements (TEs) for generating genomic diversity. The dynamic expression of TEs during Rhizophagus irregularis spore development suggests ongoing TE activity. We find Mutator-like elements located near genes belonging to highly expanded gene families. Characterising the epigenomic status of R. irregularis provides evidence of DNA methylation and small RNA production occurring at TE loci. Our results support a potential role for TEs in shaping the genome, and roles for DNA methylation and small RNA-mediated silencing in regulating TEs. A well-controlled balance between TE activity and repression may therefore contribute to genome evolution in AM fungi.

2022-02-17 | PXD025245 | Pride

Small RNA sequencing in tomato roots with and without Rhizophagus irregularis

Project description:Arbuscular mycorrhizal symbiosis is a predominant relationship between plant and arbuscular mycorrhizal fungi. To idendify arbuscular mycorrhiza responsive miRNAs, small RNA libraries were constructed in tomato roots colonized with Rhizophagus irregularis and without Rhizophagus irregularis. We identify miRNAs in tomato roots and provide a new profile of tomato miRNAs. And we found that some miRNAs were responsive to arbuscular mycorrhiza by comparing miRNAs in treatment with that in control. Examination of arbuscular mycorrhiza responsive miRNAs in tomato through high-throughput small RNA sequencing of roots with Rhizophagus irregularis and that without Rhizophagus irregularis

2016-07-20 | E-GEOD-76204 | biostudies-arrayexpress

Transcriptional activity and epigenetic regulation of transposable elements in the symbiotic fungus Rhizophagus irregularis

Project description:We report polyA+ mRNA profiles in a developmental assay where R. irregularis spores were exposed to either medium containing rice root-derived exudates or a mock nutrient medium. We report small RNA repertoires produced from R. irregularis spores using two different isolation techniques. We report the application of single-molecule-based DNA sequencing for profiling of CG methylation in untreated R. irregularis. spores.

2021-09-16 | GSE172187 | GEO

responses of maize to the arbuscular fungus rhizophagus irregularis mitigate n deficiency stress-Physiological and molecular responses of maize to the arbuscular mycorrhizla fungus 5AMF) Rhizophagus irregularis mitigate nitrogen deficiency stress.

Project description:ngs2021_19_rhizophagus-responses of maize to the arbuscular fungus rhizophagus irregularis mitigate n deficiency stress-What is the impact of Rhizophagus irregularis on maize transcriptome under different N nutrition conditions, what is the impact of N on R. irregularis transcriptome in maize roots.-After 4 days of germination, maize seeds were sown in pots filled with sterile mix 1:1 clay beads:unfertilized peat. Inoculation performed in 3 times with Rhizohphagus irregularis spores purchased at Agronutrition. First inoculation perfomed with 500 spores/plant at sowing. Two other incoulations performed the following week and 2 weeks later with 100 spore per plant each.

2023-12-13 | GSE235654 | GEO

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Project description:Rhizophagus irregularis

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Small RNA sequencing in tomato roots with and without Rhizophagus irregularis

2016-07-20 | GSE76204 | GEO

Rhizophagus irregularis

Project description:Rhizophagus irregularis Transcriptome sequencing

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