A core mechanism for specifying root vascular patterning can replicate the anatomical variation seen in diverse plant species.

ABSTRACT: Pattern formation is typically controlled through the interaction between molecular signals within a given tissue. During early embryonic development, roots of the model plant Arabidopsis thaliana have a radially symmetric pattern, but a heterogeneous input of the hormone auxin from the two cotyledons forces the vascular cylinder to develop a diarch pattern with two xylem poles. Molecular analyses and mathematical approaches have uncovered the regulatory circuit that propagates this initial auxin signal into a stable cellular pattern. The diarch pattern seen in Arabidopsis is relatively uncommon among flowering plants, with most species having between three and eight xylem poles. Here, we have used multiscale mathematical modelling to demonstrate that this regulatory module d

SUBMITTER: Mellor N 

PROVIDER: S-EPMC6451317 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature