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2025-12-01

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cc by-nc-nd (c) Valentin Gfeller, et al., 2025
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/223648

Crop genotype modulates root rot resistance-associated microbial community composition and abundance of key taxa

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https://doi.org/10.1186/s40793-025-00755-w

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Background: Plants are constantly challenged by pathogens, which can cause substantial yield losses. The aggressiveness of and damage by pathogens depends on the host-associated microbiome, which might be shaped by plant genetics to improve resistance. How different crop genotypes modulate their microbiota when challenged by a complex of pathogens is largely unknown. Here, we investigate if and how pea (Pisum sativum L.) genotypes shape their root microbiota upon challenge by soil-borne pathogens and how this relates to a genotype's resistance. Building on the phenotyping efforts of 252 pea genotypes grown in naturally infested soil, we characterized root fungi and bacteria by ITS region and 16 S rRNA gene amplicon sequencing, respectively. Results: Pea genotype markedly affected both fungal and bacterial community composition, and these genotype-specific microbiota were associated with root rot resistance. For example, genotype resistance was correlated (R2 = 19%) with root fungal community composition. Further, several key microbes, showing a high relative abundance, heritability, connectedness with other microbes, and correlation with plant resistance, were identified. Conclusions: Our findings highlight the importance of crop genotype-specific root microbiota under root rot stress and the potential of the plant to shape its associated microbiota as a second line of defense. Keywords: Pisum sativum; Grain legumes; Microbiota heritability; Pea root rot; Plant-microbe interaction; Resistance breeding.

Matèries

Microbiota, Lleguminoses

Matèries (anglès)

Microbiota, Legumes

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Articles publicats en revistes (Biologia, Sanitat i Medi Ambient)

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GFELLER, Valentin, et al. Crop genotype modulates root rot resistance-associated microbial community composition and abundance of key taxa. 2025. vol. 20. Vol. 1. ISSN 2524-6372. [consulted: 31 of May of 2026]. Available at: https://hdl.handle.net/2445/223648

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