A conserved superlocus regulates above- and belowground root initiation

Omary, Moutasem, Gil-Yarom, Naama, Yahav, Chen, Steiner, Evyatar, Hendelman, Anat, Efroni, Idan (March 2022) A conserved superlocus regulates above- and belowground root initiation. Science, 375 (6584). eabf4368. ISSN 0036-8075

URL: https://www.ncbi.nlm.nih.gov/pubmed/35239373

DOI: 10.1126/science.abf4368

Abstract

Plants continuously form new organs in different developmental contexts in response to environmental cues. Underground lateral roots initiate from prepatterned cells in the main root, but cells can also bypass the root-shoot trajectory separation and generate shoot-borne roots through an unknown mechanism. We mapped tomato (Solanum lycopersicum) shoot-borne root development at single-cell resolution and showed that these roots initiate from phloem-associated cells through a unique transition state. This state requires the activity of a transcription factor that we named SHOOTBORNE ROOTLESS (SBRL). Evolutionary analysis reveals that SBRL's function and cis regulation are conserved in angiosperms and that it arose as an ancient duplication, with paralogs controlling wound-induced and lateral root initiation. We propose that the activation of a common transition state by context-specific regulators underlies the plasticity of plant root systems.

Item Type:	Paper
Subjects:	bioinformatics bioinformatics > genomics and proteomics > genetics & nucleic acid processing > DNA, RNA structure, function, modification bioinformatics > genomics and proteomics > genetics & nucleic acid processing > DNA, RNA structure, function, modification > transcription bioinformatics > genomics and proteomics > genetics & nucleic acid processing bioinformatics > genomics and proteomics Investigative techniques and equipment Investigative techniques and equipment > assays organs, tissues, organelles, cell types and functions > tissues types and functions > meristem organs, tissues, organelles, cell types and functions organism description > plant organism description > plant behavior > plant orientation Investigative techniques and equipment > assays > RNA-seq organs, tissues, organelles, cell types and functions > tissues types and functions > root organs, tissues, organelles, cell types and functions > tissues types and functions organism description > plant > tomato
CSHL Authors:	Hendelman, Anat
Communities:	CSHL labs > Lippman lab CSHL Post Doctoral Fellows
SWORD Depositor:	CSHL Elements
Depositing User:	CSHL Elements
Date:	4 March 2022
Date Deposited:	10 Mar 2022 14:47
Last Modified:	26 Nov 2025 16:06
URI:	https://repository.cshl.edu/id/eprint/40546

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