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Transcription profiling of Arabidopsis wild type and gl3 egl3 trichomeless mutant green seedling tissues

ABSTRACT: The development of trichomes (leaf hairs) from pluripotent epidermal cells in Arabidopsis provides a powerful system to investigate the regulatory motifs involved in plant cell differentiation. Genetic studies have revealed that a bHLH transcription factor, GL3, activates downstream genes required for trichome initiation by interacting with a R2R3-MYB protein, GL1. We have taken advantage of several mutants in the trichome developmental pathway and gene expression analyses to identify a set of genes expressed predominantly in Arabidopsis trichomes. Experiment Overall Design: We compared the gene expression between the wild type and trichome mutant, gl3 egl3 using green tissue (not include root).

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Kengo Morohashi

PROVIDER: E-GEOD-12522 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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A systems approach reveals regulatory circuitry for Arabidopsis trichome initiation by the GL3 and GL1 selectors.

Morohashi Kengo K Grotewold Erich E

PLoS genetics 20090227 2

Position-dependent cell fate determination and pattern formation are unique aspects of the development of plant structures. The establishment of single-celled leaf hairs (trichomes) from pluripotent epidermal (protodermal) cells in Arabidopsis provides a powerful system to determine the gene regulatory networks involved in cell fate determination. To obtain a holistic view of the regulatory events associated with the differentiation of Arabidopsis epidermal cells into trichomes, we combined expr ...[more]

PMID: 19247443

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