A single-nuclei transcriptome census of the Arabidopsis maturing root identifies that MYB67 controls phellem cell maturation.

ABSTRACT: The periderm provides a protective barrier in many seed plant species. The development of the suberized phellem, which forms the outermost layer of this important tissue, has become a trait of interest for enhancing both plant resilience to stresses and plant-mediated CO₂ sequestration in soils. Despite its importance, very few genes driving phellem development are known. Employing single-nuclei sequencing, we have generated an expression census capturing the complete developmental progression of Arabidopsis root phellem cells, from their progenitor cell type, the pericycle, through to their maturation. With this, we identify a whole suite of genes underlying this process, including MYB67, which we show has a role in phellem cell maturation. Our expression census and functional

SUBMITTER: Miller CN 

PROVIDER: S-EPMC12582553 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature