Document Detail


The adaptation of Rice yellow mottle virus to the eIF(iso)4G-mediated rice resistance.
MedLine Citation:
PMID:  20888025     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
The rymv1-3 allele of the eIF(iso)4G-mediated resistance to Rice yellow mottle virus (RYMV) is found in a few Oryza glaberrima cultivars. The same resistance-breaking (RB) mutations emerged in the central domain of the VPg after inoculation of isolates of different strains. The RB mutations were fixed, often sequentially, at codons 41 and 52 which paralleled an increase in virus accumulation. RB mutations also emerged after inoculation of an avirulent infectious clone, indicating that they were generated de novo in resistant plants. Only virus isolates with a threonine at codon 49 of the VPg broke rymv1-3 resistance, those with a glutamic acid did not. A small subset of these isolates overcame rymv1-2 resistance, but following a specific pathway. Comparison with the RB process of rymv1-2, a resistance allele found in a few Oryza sativa cultivars, showed similarities in the mode of adaptation but revealed converse virulence specificity of the isolates.
Authors:
Oumar Traoré; Agnès Pinel-Galzi; Souley Issaka; Nils Poulicard; Jamel Aribi; Séverin Aké; Alain Ghesquière; Yacouba Séré; Gnissa Konaté; Eugénie Hébrard; Denis Fargette
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Virology     Volume:  408     ISSN:  1096-0341     ISO Abbreviation:  Virology     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-10-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0110674     Medline TA:  Virology     Country:  United States    
Other Details:
Languages:  eng     Pagination:  103-8     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Elsevier Inc. All rights reserved.
Affiliation:
Institut de l'Environnement et de Recherches Agricoles, Ouagadougou, Burkina Faso.
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