Natural variation in root exudate composition in the genetically structured Arabidopsis thaliana in the Iberian Peninsula.

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 a

SUBMITTER: Subrahmaniam HJ 

PROVIDER: S-EPMC11754937 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature