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Cited by 0Plant Virus Research StudiesCRISPR and Genetic EngineeringPlant Disease Resistance and Genetics

The DOI matches its Crossref record; 55 of the 55 references it cites were found in a registry or an index.

eIFiso4G editing confers high and broad-spectrum resistance against rice yellow mottle virus

Open access

Published version of a preprint

Abstract

Rice yellow mottle virus (RYMV) is one of the most devastating viral pathogens affecting rice cultivation in Africa. The eukaryotic translation initiation factor 4G isoform eIFiso4G1 plays a pivotal role in rice susceptibility to the virus. Naturally occurring resistance alleles impair infection but are predominantly found in the African cultivated species Oryza glaberrima , whose use in breeding programs is limited by interspecific sterility barriers with the widely grown O. sativa . Here, we used CRISPR/Cas9 to generate knockout (KO) mutations in eIFiso4G1 as well as insertion-deletion (Indel) variants within the region involved in interaction with the viral protein VPg. KO mutations conferred high resistance to RYMV. No resistance-breaking events were observed, suggesting that this resistance may be more durable than that conferred by naturally occurring alleles. However, complete gene KO slightly affected plant growth. Lines carrying Indel mutations in the VPg-interacting region displayed variable resistance levels, with some variants conferring high resistance without compromising plant development. Structural modeling of the eIFiso4G1 variants and their complexes with VPg provided mechanistic insights into how specific Indels modulate the resistance phenotype.

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Crossref · 10.24072/pcjournal.740

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Authors
Auguy, F., Chéron, S., Dossou, L., Pinel-Galzi, A., Thomas, E., Aribi, J., Celli, M. G., Cunnac, S., Hébrard, E., & Albar, L.
Affiliations
  • Centre de Coopération Internationale en Recherche Agronomique pour le Développement (FR)
  • PHIM Plant Health Institute, Univ Montpellier, IRD, CIRAD, INRAE, Institut Agro, Montpellier, France
Corresponding author
Albar, Laurence
Venue
Peer Community Journal
Published
2026-07-08
Volume
6
ISSN
2804-3871 (ISSN-L)
OpenAlex
W7167695151
Cited by
0
References
55
FWCI
0.00
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Peer Community Journal (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc)
Funders
Consortium of International Agricultural Research Centers
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Virus Research Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › CRISPR and Genetic Engineering
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Disease Resistance and Genetics
Keywords
rice yellow mottle virus, plant virus resistance, indel mutations, Oryza glaberrima, rice, CRISPR/Cas9 genome editing, structural modeling, resistance durability

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