Chromosomal barcodes for simultaneous tracking of near-isogenic bacterial strains in plant microbiota.

ABSTRACT: DNA-amplicon-based microbiota profiling can estimate species diversity and abundance but cannot resolve genetic differences within individuals of the same species. Here we report the development of modular bacterial tags (MoBacTags) encoding DNA barcodes that enable tracking of near-isogenic bacterial commensals in an array of complex microbiome communities. Chromosomally integrated DNA barcodes are then co-amplified with endogenous marker genes of the community by integrating corresponding primer binding sites into the barcode. We use this approach to assess the contributions of individual bacterial genes to Arabidopsis thaliana root microbiota establishment with synthetic communities that include MoBacTag-labelled strains of Pseudomonas capeferrum. Results show reduced root colonization

SUBMITTER: Ordon J 

PROVIDER: S-EPMC10994850 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature