An Arabidopsis gene regulatory network for secondary cell wall synthesis

Taylor-Teeples, M., Lin, L., de Lucas, M., Turco, G., Toal, T. W., Gaudinier, A., Young, N. F., Trabucco, G. M., Veling, M. T., Lamothe, R., Handakumbura, P. P., Xiong, G., Wang, C., Corwin, J., Tsoukalas, A., Zhang, L., Ware, D., Pauly, M., Kliebenstein, D. J., Dehesh, K., Tagkopoulos, I., Breton, G., Pruneda-Paz, J. L., Ahnert, S. E., Kay, S. A., Hazen, S. P., Brady, S. M. (2015) An Arabidopsis gene regulatory network for secondary cell wall synthesis. Nature, 517 (7536). pp. 571-575. ISSN 0028-0836

URL: http://www.ncbi.nlm.nih.gov/pubmed/25533953
DOI: 10.1038/nature14099

Abstract

The plant cell wall is an important factor for determining cell shape, function and response to the environment. Secondary cell walls, such as those found in xylem, are composed of cellulose, hemicelluloses and lignin and account for the bulk of plant biomass. The coordination between transcriptional regulation of synthesis for each polymer is complex and vital to cell function. A regulatory hierarchy of developmental switches has been proposed, although the full complement of regulators remains unknown. Here we present a protein-DNA network between Arabidopsis thaliana transcription factors and secondary cell wall metabolic genes with gene expression regulated by a series of feed-forward loops. This model allowed us to develop and validate new hypotheses about secondary wall gene regulation under abiotic stress. Distinct stresses are able to perturb targeted genes to potentially promote functional adaptation. These interactions will serve as a foundation for understanding the regulation of a complex, integral plant component.

Item Type: Paper
Subjects: organism description > plant > Arabidopsis
bioinformatics > genomics and proteomics > genetics & nucleic acid processing > DNA, RNA structure, function, modification > genes, structure and function > gene regulation
bioinformatics > genomics and proteomics > genetics & nucleic acid processing > DNA, RNA structure, function, modification > genes, structure and function > gene regulation
CSHL Authors:
Communities: CSHL labs > Ware lab
Depositing User: Matt Covey
Date Deposited: 06 Jan 2015 16:01
Last Modified: 27 Mar 2015 19:34
PMCID: PMC4333722
Related URLs:
URI: http://repository.cshl.edu/id/eprint/31017

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