ArticleThe New phytologist2025
Natural variation in root exudate composition in the genetically structured Arabidopsis thaliana in the Iberian Peninsula.
Article in The New phytologist, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Exudate compositions differ between the cover crops vetch and oat.Scientific reports · 2026Article
- From soil to sequences: mechanisms and tools unravelling plant-rhizomicrobiome interactions.World journal of microbiology & biotechnology · 2026Review
- Advances in Plant Species Recognition Mediated by Root Exudates: A Review.Plants (Basel, Switzerland) · 2025Review
- Relevance of cross talk between root exudates, hormones, and root-associated microbes in developing sustainable phytoremediation strategies: a comprehensive review.Physiology and molecular biology of plants : an international journal of functional plant biology · 2025Review
- How to harness the effects of exudates and microbes that support beneficial plant-plant interactions for sustainable agriculture.PLoS biology · 2025Review
- Root-exuded sugars as drivers of rhizosphere microbiome assembly.Plant biotechnology (Tokyo, Japan) · 2025Article
- Natural variation in root exudate composition in the genetically structured Arabidopsis thaliana in the Iberian Peninsula.The New phytologist · 2025Article
- Design and construction of a low-cost, low-input Open Top Chamber field warming setup to assess aboveground plant response to global warming.Frontiers in plant science · 2025Article
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Authors and funding
6 authors.
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Abstract
Plant root exudates are involved in nutrient acquisition, microbial partnerships, and inter-organism signaling. Yet, little is known about the genetic and environmental drivers of root exudate variation at large geographical scales, which may help understand the evolutionary trajectories of plants in heterogeneous environments. We quantified natural variation in the chemical composition of Arabidopsis thaliana root exudates in 105 Iberian accessions. We identified up to 373 putative compounds using ultra-high-performance liquid chromatography coupled with mass spectrometry. We estimated the broad-sense heritability of compounds and conducted a genome-wide association (GWA) study. We associated variation in root exudates to variation in geographic, environmental, life history, and genetic attributes of Iberian accessions. Only 25 of 373 compounds exhibited broad-sense heritability values significantly different from zero. GWA analysis identified polymorphisms associated with 12 root exudate compounds and 26 known genes involved in metabolism, defense, signaling, and nutrient transport. The genetic structure influenced root exudate composition involving terpenoids. We detected five terpenoids related to plant defense significantly varying in mean abundances in two genetic clusters. Our study provides first insights into the extent of root exudate natural variation at a regional scale depicting a diversified evolutionary trajectory among A. thaliana genetic clusters chiefly mediated by terpenoid composition.
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