A single-cell Arabidopsis root atlas reveals developmental trajectories in wild-type and cell identity mutants.

ABSTRACT: In all multicellular organisms, transcriptional networks orchestrate organ development. The Arabidopsis root, with its simple structure and indeterminate growth, is an ideal model for investigating the spatiotemporal transcriptional signatures underlying developmental trajectories. To map gene expression dynamics across root cell types and developmental time, we built a comprehensive, organ-scale atlas at single-cell resolution. In addition to estimating developmental progressions in pseudotime, we employed the mathematical concept of optimal transport to infer developmental trajectories and identify their underlying regulators. To demonstrate the utility of the atlas to interpret new datasets, we profiled mutants for two key transcriptional regulators at single-cell resolution, shortroot

SUBMITTER: Shahan R 

PROVIDER: S-EPMC9014886 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature