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Transcriptional control of tissue formation throughout root development

Item Type:Article
Title:Transcriptional control of tissue formation throughout root development
Creators Name:Moreno-Risueno, M.A. and Sozzani, R. and Yardimci, G.G. and Petricka, J.J. and Vernoux, T. and Blilou, I. and Alonso, J. and Winter, C.M. and Ohler, U. and Scheres, B. and Benfey, P.N.
Abstract:Tissue patterns are dynamically maintained. Continuous formation of plant tissues during postembryonic growth requires asymmetric divisions and the specification of cell lineages. We show that the BIRDs and SCARECROW regulate lineage identity, positional signals, patterning, and formative divisions throughout Arabidopsis root growth. These transcription factors are postembryonic determinants of the ground tissue stem cells and their lineage. Upon further activation by the positional signal SHORT-ROOT (a mobile transcription factor), they direct asymmetric cell divisions and patterning of cell types. The BIRDs and SCARECROW with SHORT-ROOT organize tissue patterns at all formative steps during growth, ensuring developmental plasticity.
Keywords:Arabidopsis, Arabidopsis Proteins, Cell Division, Cell Lineage, Genetic Transcription, Plant Gene Expression Regulation, Plant Roots, Transcription Factors
Source:Science
ISSN:0036-8075
Publisher:American Association for the Advancement of Science (U.S.A.)
Volume:350
Number:6259
Page Range:426-430
Date:23 October 2015
Official Publication:https://doi.org/10.1126/science.aad1171
PubMed:View item in PubMed

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