N(6)-Methyladenosine RNA Modification Regulates Shoot Stem Cell Fate in Arabidopsis

Overview

Journal Dev Cell

Publisher Cell Press

Specialties Cell Biology
Reproductive Medicine

Date 2016 Jul 12

PMID 27396363

Citations 183

Authors

Lisha Shen

Zhe Liang

Xiaofeng Gu

Ying Chen

Zhi Wei Norman Teo

Xingliang Hou

Weiling Maggie Cai

Peter C Dedon

Lu Liu

Hao Yu

Affiliations

Soon will be listed here.

Abstract

N(6)-Methyladenosine (m(6)A) represents the most prevalent internal modification on mRNA and requires a multicomponent m(6)A methyltransferase complex in mammals. How their plant counterparts determine the global m(6)A modification landscape and its molecular link to plant development remain unknown. Here we show that FKBP12 INTERACTING PROTEIN 37 KD (FIP37) is a core component of the m(6)A methyltransferase complex, which underlies control of shoot stem cell fate in Arabidopsis. The mutants lacking FIP37 exhibit massive overproliferation of shoot meristems and a transcriptome-wide loss of m(6)A RNA modifications. We further demonstrate that FIP37 mediates m(6)A RNA modification on key shoot meristem genes inversely correlated with their mRNA stability, thus confining their transcript levels to prevent shoot meristem overproliferation. Our results suggest an indispensable role of FIP37 in mediating m(6)A mRNA modification, which is required for maintaining the shoot meristem as a renewable source for continuously producing all aerial organs in plants.

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