Framework for gradual progression of cell ontogeny in the <i>Arabidopsis</i> root meristem.

ABSTRACT: In plants, apical meristems allow continuous growth along the body axis. Within the root apical meristem, a group of slowly dividing quiescent center cells is thought to limit stem cell activity to directly neighboring cells, thus endowing them with unique properties, distinct from displaced daughters. This binary identity of the stem cells stands in apparent contradiction to the more gradual changes in cell division potential and differentiation that occur as cells move further away from the quiescent center. To address this paradox and to infer molecular organization of the root meristem, we used a whole-genome approach to determine dominant transcriptional patterns along root ontogeny zones. We found that the prevalent patterns are expressed in two opposing gradients. One is characteriz

SUBMITTER: Wendrich JR 

PROVIDER: S-EPMC5651754 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature