Phylogenomics reveals multiple losses of nitrogen-fixing root nodule symbiosis

2018/05/24 by Maximilian Griesmann, Yue Chang, Xin Liu +39 · 1 voice · 16 citations
Agricultural and Biological Sciences · #Legume Nitrogen Fixing Symbiosis #Nematode management and characterization studies #Plant nutrient uptake and metabolism

paper · doi:10.1126/science.aat1743

openalex publication_date 2018/05/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31

Abstract

Genomic traces of symbiosis loss A symbiosis between certain bacteria and their plant hosts delivers fixed nitrogen to the plants. Griesmann et al. sequenced several plant genomes to analyze why nitrogen-fixing symbiosis is irregularly scattered through the evolutionary tree (see the Perspective by Nagy). Various genomes carried traces of lost pathways that could have supported nitrogen-fixing symbiosis. It seems that this symbiosis, which relies on multiple pathways and complex interorganismal signaling, is susceptible to selection and prone to being lost over evolutionary time. Science , this issue p. eaat1743 ; see also p. 125

Citations

• The age and diversification of the angiosperms re‐revisited
• A new subfamily classification of the Leguminosae based on a taxonomically comprehensive phylogeny: The Legume Phylogeny Working Group (LPWG)
• PAML 4: Phylogenetic Analysis by Maximum Likelihood
• IQ-TREE: A Fast and Effective Stochastic Algorithm for Estimating Maximum-Likelihood Phylogenies
• MAFFT Multiple Sequence Alignment Software Version 7: Improvements in Performance and Usability

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• From roots to nodules: regulation of organogenesis in nitrogen-fixing symbiosis
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• Soybean RIN4 represents a mechanistic link between plant immune and symbiotic signaling
• Gene family expansions and nodule-specific expression patterns reveal the recruitment of Beta-Glucosidases and Cytochrome P450 genes to nodulation in soybean

Discussions

• Phylogenomics reveals multiple losses of nitrogen-fixing root nodule symbiosis doi.org/10.1126/scie... この2018年のScienceの論文が重要そう かつてはより広範な植物（マメ目、バラ目、ブナ目、ウリ目）が窒素固定共生をしていたものの、多くの系統では維持できず遺伝子を失って退化してしまったと [bsky, 6 points, 0 comments]

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