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Transcription profiling of Arabidopsis myb5 and wild-type (Col) seeds

ABSTRACT: The MYB gene family encodes transcription factors with a diverse range of functions in Arabidopsis. This study demonstrated that MYB5, which is expressed in trichomes and seeds, plays a central role in trichome and seed development. A microarray analysis of myb5 seeds identified other members of the MYB5 regulatory network. Experiment Overall Design: Four wild-type biological replicates and three myb5 biological replicates were used for microarray analysis.

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Song Feng Li

PROVIDER: E-GEOD-14229 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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The Arabidopsis MYB5 transcription factor regulates mucilage synthesis, seed coat development, and trichome morphogenesis.

Li Song Feng SF Milliken Olga Nicolaou ON Pham Hanh H Seyit Reg R Napoli Ross R Preston Jeremy J Koltunow Anna M AM Parish Roger W RW

The Plant cell 20090109 1

The Arabidopsis thaliana MYB5 gene is expressed in trichomes and seeds, including the seed coat. Constitutive expression of MYB5 resulted in the formation of more small trichomes and ectopic trichomes and a reduction in total leaf trichome numbers and branching. A myb5 mutant displayed minimal changes in trichome morphology, while a myb23 mutant produced increased numbers of small trichomes and two-branched trichomes. A myb5 myb23 double mutant developed more small rosette trichomes and two-bran ...[more]

PMID: 19136646

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