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Updated: Aug 11, 2026
Potato Virus X-Based microRNA Silencing (VbMS) In Potato.
Published on: May 11, 2020
Improvement of Potato virus Y (PVY) detection and quantitation using PVY(N)- and PVY(O)-specific real-time RT-PCR
Valérie Balme-Sinibaldi1, Michel Tribodet, Flora Croizat
1INRA/ENSA, Unité Mixte de Recherche Biologie des Organismes et des Populations Appliquée à la Protection des Plantes (BiO3P), Domaine de la Motte B.P. 35327, F-35653 Le Rheu Cedex, France.
Abstract:
A Potato virus Y (PVY) single nucleotide polymorphism (A/G(2213)), recently identified as a molecular determinant of the tobacco leaf necrosis symptom induced by PVY(N) isolates, has been used as a target to develop two PVY group-specific (PVY(N) and PVY(O)) fluorescent (TaqMan-based) real-time RT-PCR assays. These procedures allow detection, characterisation, and quantitation of a wide range of PVY isolates in samples containing 10(3)-10(8) viral transcripts. Moreover, the high specificity of these two new assays make the simultaneous detection and the reliable quantitation of PVY(N) and PVY(O) isolates in mixed solutions, regardless of the Y(N)/Y(O) ratio, feasible. The high sensitivity (threshold of 10(3) copies per reaction) and the PVY group specificity of these two new PVY detection tools clearly improve previously published PVY detection tests and offer new opportunities for PVY research programs.
