ArticleGenome biology and evolution2019
Frankia-Enriched Metagenomes from the Earliest Diverging Symbiotic Frankia Cluster: They Come in Teams.
Article in Genome biology and evolution, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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20 citing papers in PubMed, 50 citations in OpenAlex.
- Host-dependent specialized metabolism of nitrogen export in actinorhizal nodules induced by diazotrophic Actinomycetota Frankia cluster-2.Journal of experimental botany · 2025Article
- A root nodule microbiome sequencing data set from red alder (Alnus rubra Bong.).Scientific data · 2024Article
- Actinorhizal plants and Frankiaceae: The overlooked future of phytoremediation.Environmental microbiology reports · 2024Review
- Frankia [NiFe] uptake hydrogenases and genome reduction: different lineages of loss.FEMS microbiology ecology · 2024Article
- Genome analysis and biogeographic distribution of the earliest divergent Frankia clade in the southern hemisphere.FEMS microbiology ecology · 2024Article
- MAGs-centric crack: how long will, spore-positiveFrontiers in microbiology · 2024Article
- Plant-Environment Response Pathway Regulation Uncovered by Investigating Non-Typical Legume Symbiosis and Nodulation.Plants (Basel, Switzerland) · 2023Review
- Genomic Insights ofGenes · 2023Article
- Draft Genomes ofJournal of genomics · 2023Article
- NADMicrobes and environments · 2023Article
- A tale of two lineages: how the strains of the earliest divergent symbiotic Frankia clade spread over the world.BMC genomics · 2022Article
- Pseudogenization of the rhizobium-responsive EXOPOLYSACCHARIDE RECEPTOR in Parasponia is a rare event in nodulating plants.BMC plant biology · 2022Article
- Innovation and appropriation in mycorrhizal and rhizobial Symbioses.The Plant cell · 2022Article
- The Proteogenome of SymbioticMicroorganisms · 2022Article
- Taxogenomic status of phylogenetically distantFrontiers in microbiology · 2022Article
- Effects of Abiotic Stress on Soil Microbiome.International journal of molecular sciences · 2021Review
- Draft genomes of non-nitrogen-fixingJournal of genomics · 2021Article
- Duplication of Symbiotic Lysin Motif Receptors Predates the Evolution of Nitrogen-Fixing Nodule Symbiosis.Plant physiology · 2020Article
- The Peptidoglycan Biosynthesis GeneGenes · 2020Article
- A Roadmap toward Engineered Nitrogen-Fixing Nodule Symbiosis.Plant communications · 2020Review
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Authors and funding
13 authors at 8 institutions in 6 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Frankia strains induce the formation of nitrogen-fixing nodules on roots of actinorhizal plants. Phylogenetically, Frankia strains can be grouped in four clusters. The earliest divergent cluster, cluster-2, has a particularly wide host range. The analysis of cluster-2 strains has been hampered by the fact that with two exceptions, they could never be cultured. In this study, 12 Frankia-enriched metagenomes of Frankia cluster-2 strains or strain assemblages were sequenced based on seven inoculum sources. Sequences obtained via DNA isolated from whole nodules were compared with those of DNA isolated from fractionated preparations enhanced in the Frankia symbiotic structures. The results show that cluster-2 inocula represent groups of strains, and that strains not represented in symbiotic structures, that is, unable to perform symbiotic nitrogen fixation, may still be able to colonize nodules. Transposase gene abundance was compared in the different Frankia-enriched metagenomes with the result that North American strains contain more transposase genes than Eurasian strains. An analysis of the evolution and distribution of the host plants indicated that bursts of transposition may have coincided with niche competition with other cluster-2 Frankia strains. The first genome of an inoculum from the Southern Hemisphere, obtained from nodules of Coriaria papuana in Papua New Guinea, represents a novel species, postulated as Candidatus Frankia meridionalis. All Frankia-enriched metagenomes obtained in this study contained homologs of the canonical nod genes nodABC; the North American genomes also contained the sulfotransferase gene nodH, while the genome from the Southern Hemisphere only contained nodC and a truncated copy of nodB.
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