Genome-Annotated Bacterial Collection of the Barley Rhizosphere Microbiota

Robertson-Albertyn, Senga; Abbott, James; Concas, Federico; Orr, Jamie; George, Timothy S.; Bulgarelli, Davide

doi:10.1128/mra.01064-21

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2022

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Cited by 2 publications

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References 24 publications

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“…This is in accordance with data gathered from rice, using both soil feedback experiments ( 85 ) and synthetic communities ( 47 ), indicating the host genotype as a driver of a plant growth-promoting microbiota. Likewise, a recently developed indexed bacterial collection of the barley rhizosphere microbiota indicated a growth promotion potential for members of the phyla differentially recruited in the feedback experiment ( 86 , 87 ).…”

Section: Discussionmentioning

confidence: 99%

Defining Composition and Function of the Rhizosphere Microbiota of Barley Genotypes Exposed to Growth-Limiting Nitrogen Supplies

et al. 2022

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Section: Discussionmentioning

confidence: 99%

Defining Composition and Function of the Rhizosphere Microbiota of Barley Genotypes Exposed to Growth-Limiting Nitrogen Supplies

et al. 2022

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Identifying plant genes shaping microbiota composition in the barley rhizosphere

et al. 2022

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A prerequisite to exploiting soil microbes for sustainable crop production is the identification of the plant genes shaping microbiota composition in the rhizosphere, the interface between roots and soil. Here, we use metagenomics information as an external quantitative phenotype to map the host genetic determinants of the rhizosphere microbiota in wild and domesticated genotypes of barley, the fourth most cultivated cereal globally. We identify a small number of loci with a major effect on the composition of rhizosphere communities. One of those, designated the QRMC-3HS, emerges as a major determinant of microbiota composition. We subject soil-grown sibling lines harbouring contrasting alleles at QRMC-3HS and hosting contrasting microbiotas to comparative root RNA-seq profiling. This allows us to identify three primary candidate genes, including a Nucleotide-Binding-Leucine-Rich-Repeat (NLR) gene in a region of structural variation of the barley genome. Our results provide insights into the footprint of crop improvement on the plant’s capacity of shaping rhizosphere microbes.

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Genome-Annotated Bacterial Collection of the Barley Rhizosphere Microbiota

Cited by 2 publications

References 24 publications

Defining Composition and Function of the Rhizosphere Microbiota of Barley Genotypes Exposed to Growth-Limiting Nitrogen Supplies

Defining Composition and Function of the Rhizosphere Microbiota of Barley Genotypes Exposed to Growth-Limiting Nitrogen Supplies

Identifying plant genes shaping microbiota composition in the barley rhizosphere

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