Campus Units

Statistics

Document Type

Article

Publication Version

Published Version

Publication Date

4-1-2017

Journal or Book Title

Journal of Experimental Botany

Volume

68

Issue

9

First Page

2175

Last Page

2185

DOI

10.1093/jxb/erx104

Abstract

Root hairs are tubular extensions of epidermis cells. Transcriptome profiling demonstrated that the single cell-type root hair transcriptome was less complex than the transcriptome of multiple cell-type primary roots without root hairs. In total, 831 genes were exclusively and 5585 genes were preferentially expressed in root hairs [false discovery rate (FDR) ≤1%]. Among those, the most significantly enriched Gene Ontology (GO) functional terms were related to energy metabolism, highlighting the high energy demand for the development and function of root hairs. Subsequently, the maize homologs for 138 Arabidopsis genes known to be involved in root hair development were identified and their phylogenetic relationship and expression in root hairs were determined. This study indicated that the genetic regulation of root hair development in Arabidopsis and maize is controlled by common genes, but also shows differences which need to be dissected in future genetic experiments. Finally, a maize root view of the eFP browser was implemented including the root hair transcriptome of the present study and several previously published maize root transcriptome data sets. The eFP browser provides color-coded expression levels for these root types and tissues for any gene of interest, thus providing a novel resource to study gene expression and function in maize roots.

Comments

This article is published as Hey, Stefan, Jutta Baldauf, Nina Opitz, Andrew Lithio, Asher Pasha, Nicholas Provart, Dan Nettleton, and Frank Hochholdinger. "Complexity and specificity of the maize (Zea mays L.) root hair transcriptome." Journal of experimental botany 68, no. 9 (2017): 2175-2185. doi: 10.1093/jxb/erx104.

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

Copyright Owner

The Authors

Language

en

File Format

application/pdf

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