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Unravelling the Prunus/Plum pox virus interactions

, : Unravelling the Prunus/Plum pox virus interactions. Bulletin OEPP 36(2): 346-349

Plum pox virus (PPV) belongs to the genus Potyvirus that contains the largest number of virus species infecting plants. Its vir-us genome has been extensively characterised and sequenced. However, few data are available on its interactions with woody host plants. We therefore focused, in the past 4 years, both on the cellular and molecular aspects of the compatible and incompatible Prunus/PPV interactions. GFP (Green fluorescent protein)-tagged PPV and in situ hybridisation were used to compare the localization of viral particles in stems and leaves of susceptible and resistant apricot cultivars. In parallel, molecular tools were developed through the cloning and characterization of polymorphic, homologous resistance genes and of candidate genes involved in the expression of Prunus/PPV interactions. Candidate genes are currently used to target genomic regions involved in resistance or susceptibility and to identify molecular markers indispensable for further marker assisted selection for resistance to sharka disease.


DOI: 10.1111/j.1365-2338.2006.01013.x

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