ArticleProceedings. Biological sciences2021
Comparative genomics reveals high rates of horizontal transfer and strong purifying selection on rhizobial symbiosis genes.
Article in Proceedings. Biological sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed, 30 citations in OpenAlex.
- Elucidating the Functional and Taxonomic Diversity of Soil Microbial Communities From Three Commercial Soybean Farms in South Africa.Environmental microbiology reports · 2026Article
- Plasmid transmission dynamics and evolution of partner quality in a natural population ofmBio · 2025Article
- Mobile gene clusters and coexpressed plant-rhizobium pathways drive partner quality variation in symbiosis.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Elevated Rates of Molecular Evolution Genome-wide in Mutualist Legumes and Rhizobia.Molecular biology and evolution · 2024Article
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- Composition of soilEcology and evolution · 2024Article
- Rhizobium hidalgonense and Rhizobium redzepovicii as faba bean (Vicia faba L.) microsymbionts in Mexican soils.Archives of microbiology · 2024Article
- Unveiling intraspecific diversity and evolutionary dynamics of the foodborne pathogenCurrent research in food science · 2024Article
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- Phenotypic and genomic signatures of interspecies cooperation and conflict in naturally occurring isolates of a model plant symbiont.Proceedings. Biological sciences · 2022Article
- Why are rhizobial symbiosis genes mobile?Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022Article
- Pangenomics of the Symbiotic Rhizobiales. Core and Accessory Functions Across a Group Endowed with High Levels of Genomic Plasticity.Microorganisms · 2021Article
- Comparative genomics reveals high rates of horizontal transfer and strong purifying selection on rhizobial symbiosis genes.Proceedings. Biological sciences · 2021Article
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Authors and funding
2 authors at 1 institution in 1 country.
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Abstract
Horizontal transfer (HT) alters the repertoire of symbiosis genes in rhizobial genomes and may play an important role in the on-going evolution of the rhizobia-legume symbiosis. To gain insight into the extent of HT of symbiosis genes with different functional roles (nodulation, N-fixation, host benefit and rhizobial fitness), we conducted comparative genomic and selection analyses of the full-genome sequences from 27 rhizobial genomes. We find that symbiosis genes experience high rates of HT among rhizobial lineages but also bear signatures of purifying selection (low Ka : Ks). HT and purifying selection appear to be particularly strong in genes involved in initiating the symbiosis (e.g. nodulation) and in genome-wide association candidates for mediating benefits provided to the host. These patterns are consistent with rhizobia adapting to the host environment through the loss and gain of symbiosis genes, but not with host-imposed positive selection driving divergence of symbiosis genes through recurring bouts of positive selection.
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