Regulation of cell fate determination by single-repeat R3 MYB transcription factors in Arabidopsis.
MYB transcription factors regulate multiple aspects of plant growth and development. Among the large family of MYB transcription factors, single-repeat R3 MYBs are characterized by their short sequence (<120 amino acids) consisting largely of the single MYB DNA-binding repeat. In the model plant Arabidopsis, R3 MYBs mediate lateral inhibition during epidermal patterning and are best characterized for their regulatory roles in trichome and root hair development. R3 MYBs act as negative regulators for trichome formation but as positive regulators for root hair development. In this article, we provide a comprehensive review on the role of R3 MYBs in the regulation of cell type specification in the model plant Arabidopsis.
Key Laboratory of Molecular Epigenetics of MOE, Institute of Genetics and Cytology, Northeast Normal University Changchun, China.
Shucai
S
Wang
Biosciences Division, Oak Ridge National Laboratory Oak Ridge, TN, USA.
Jin-Gui
JG
Chen
CPC; GL1; GL2; GL3; R3 MYB; TRY; root hair; trichome