PtoMYB031, the R2R3 MYB transcription factor involved in secondary cell wall biosynthesis in poplar.

ABSTRACT:

Introduction

The biosynthesis of the secondary cell wall (SCW) is orchestrated by an intricate hierarchical transcriptional regulatory network. This network is initiated by first-layer master switches, SCW-NAC transcription factors, which in turn activate the second-layer master switches MYBs. These switches play a crucial role in regulating xylem specification and differentiation during SCW formation. However, the roles of most MYBs in woody plants are yet to be fully understood.

Methods

In this study, we identified and isolated the R2R3-MYB transcription factor, PtoMYB031, from Populus tomentosa. We explored its expression, mainly in xylem tissues, and its role as a transcriptional repressor in the nucleus. We used overexpression and RNA interference techniqu

SUBMITTER: Tang F 

PROVIDER: S-EPMC10828011 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature