J 2020

Nonsense-Mediated RNA Decay Factor UPF1 Is Critical for Posttranscriptional and Translational Gene Regulation in Arabidopsis

RAXWAL, Vivek Kumar, C.G. SIMPSON, J. GLOGGNITZER, J.C. ENTINZE, W.B. GUO et. al.

Basic information

Original name

Nonsense-Mediated RNA Decay Factor UPF1 Is Critical for Posttranscriptional and Translational Gene Regulation in Arabidopsis

Authors

RAXWAL, Vivek Kumar (356 India, belonging to the institution), C.G. SIMPSON, J. GLOGGNITZER, J.C. ENTINZE, W.B. GUO, R.X. ZHANG, J.W.S. BROWN and Karel ŘÍHA (203 Czech Republic, guarantor, belonging to the institution)

Edition

Plant Cell, ROCKVILLE, AMER SOC PLANT BIOLOGISTS, 2020, 1040-4651

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10611 Plant sciences, botany

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 11.277

RIV identification code

RIV/00216224:14740/20:00114761

Organization unit

Central European Institute of Technology

UT WoS

000578504100015

Keywords in English

MESSENGER-RNA; TRIGGERED IMMUNITY; COMPLEX; NMD; IDENTIFICATION; TERMINATION; EXPRESSION; TRANSCRIPTOME; SURVEILLANCE; DEGRADATION

Tags

Tags

International impact, Reviewed
Změněno: 6/3/2021 11:50, Mgr. Pavla Foltynová, Ph.D.

Abstract

V originále

Nonsense-mediated RNA decay (NMD) is an RNA control mechanism that has also been implicated in the broader regulation of gene expression. Nevertheless, a role for NMD in genome regulation has not yet been fully assessed, partially because NMD inactivation is lethal in many organisms. Here, we performed an in-depth comparative analysis of Arabidopsis (Arabidopsis thaliana) mutants lacking the NMD-related proteins UPF3, UPF1, and SMG7. We found different impacts of these proteins on NMD and the Arabidopsis transcriptome, with UPF1 having the biggest effect. Transcriptome assembly in UPF1-null plants revealed genome-wide changes in alternative splicing, suggesting that UPF1 functions in splicing. The inactivation of UPF1 led to translational repression, as manifested by a global shift in mRNAs from polysomes to monosomes and the downregulation of genes involved in translation and ribosome biogenesis. Despite these global changes, NMD targets and mRNAs expressed at low levels with short half-lives were enriched in the polysomes ofupf1mutants, indicating that UPF1/NMD suppresses the translation of aberrant RNAs. Particularly striking was an increase in the translation of TIR domain-containing, nucleotide binding, leucine-rich repeat (TNL) immune receptors. The regulation of TNLs via UPF1/NMD-mediated mRNA stability and translational derepression offers a dynamic mechanism for the rapid activation of TNLs in response to pathogen attack. The RNA helicase and ATPase UPF1 affects transcriptome homeostasis and gene expression through nonsense-mediated RNA decay, splicing, and translation in Arabidopsis.

Links

EF15_003/0000479, research and development project
Name: Regulace rostlinné meiózy
GA16-18578S, research and development project
Name: Funkce UPF1 helikázy v procesech odehrávajících se v buněčném jádře
Investor: Czech Science Foundation