ArticleBMC genomics2018
The genome of Rhizophagus clarus HR1 reveals a common genetic basis for auxotrophy among arbuscular mycorrhizal fungi.
Article in BMC genomics, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.
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53 citing papers in PubMed, 142 citations in OpenAlex.
- Review
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- Asymbiotic Growth of Arbuscular Mycorrhizal Fungi.Methods in molecular biology (Clifton, N.J.) · 2026Article
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- Comparative genomic analysis of a metagenome-assembled genome reveals distinctive symbiotic traits in a Mucoromycotina fine root endophyte arbuscular mycorrhizal fungus.BMC genomics · 2025Article
- Early-stage reciprocal cooperation between the arbuscular mycorrhizal fungus Rhizophagus irregularis and the phosphate-solubilizing bacterium Rahnella aquatilis is dependent on external phosphorus availability.Communications biology · 2025Article
- Quantitative stable isotope probing (qSIP) and cross-domain networks reveal bacterial-fungal interactions in the hyphosphere.Microbiome · 2025Article
- Mycorrhizal control of microbial gene transcription and taxonomic composition in the rhizosphere and bulk soil.The ISME journal · 2025Article
- Mechanisms of cooperation in the plants-arbuscular mycorrhizal fungi-bacteria continuum.The ISME journal · 2025Review
- Cross-kingdom nutrient exchange in the plant-arbuscular mycorrhizal fungus-bacterium continuum.Nature reviews. Microbiology · 2024Review
- What are the 100 most cited fungal genera?Studies in mycology · 2024Article
- Evolutionary history of arbuscular mycorrhizal fungi and genomic signatures of obligate symbiosis.BMC genomics · 2024Article
- Phytophagy impacts the quality and quantity of plant carbon resources acquired by mutualistic arbuscular mycorrhizal fungi.Nature communications · 2024Article
- Characterization of the complete mitochondrial genome ofMitochondrial DNA. Part B, Resources · 2024Article
- Mitochondrial genomic characteristics and phylogenetic analysis of a brewing fungus,Mitochondrial DNA. Part B, Resources · 2024Article
- Monoterpene glucosides in Eustoma grandiflorum roots promote hyphal branching in arbuscular mycorrhizal fungi.Plant physiology · 2023Article
- Sequencing the Genomes of the First Terrestrial Fungal Lineages: What Have We Learned?Microorganisms · 2023Review
- A highly contiguous genome assembly reveals sources of genomic novelty in the symbiotic fungus Rhizophagus irregularis.G3 (Bethesda, Md.) · 2023Article
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Authors and funding
8 authors at 3 institutions in 1 country.
Funding
Abstract
backgroundMycorrhizal symbiosis is one of the most fundamental types of mutualistic plant-microbe interaction. Among the many classes of mycorrhizae, the arbuscular mycorrhizae have the most general symbiotic style and the longest history. However, the genomes of arbuscular mycorrhizal (AM) fungi are not well characterized due to difficulties in cultivation and genetic analysis. In this study, we sequenced the genome of the AM fungus Rhizophagus clarus HR1, compared the sequence with the genome sequence of the model species R. irregularis, and checked for missing genes that encode enzymes in metabolic pathways related to their obligate biotrophy.
resultsIn the genome of R. clarus, we confirmed the absence of cytosolic fatty acid synthase (FAS), whereas all mitochondrial FAS components were present. A KEGG pathway map identified the absence of genes encoding enzymes for several other metabolic pathways in the two AM fungi, including thiamine biosynthesis and the conversion of vitamin B6 derivatives. We also found that a large proportion of the genes encoding glucose-producing polysaccharide hydrolases, that are present even in ectomycorrhizal fungi, also appear to be absent in AM fungi.
conclusionsIn this study, we found several new genes that are absent from the genomes of AM fungi in addition to the genes previously identified as missing. Missing genes for enzymes in primary metabolic pathways imply that AM fungi may have a higher dependency on host plants than other biotrophic fungi. These missing metabolic pathways provide a genetic basis to explore the physiological characteristics and auxotrophy of AM fungi.
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