Results 111 to 120 of about 3,123 (161)

Diversity, Characterisation and Classification of PVY

, 2017
Since the discovery of PVY in the 1930s, many strain groups and variants have been described although consensus on an agreed international nomenclature is still a matter of debate. The challenge for plant pathologists studying PVY remains to establish the biological significance of the genomic diversity of PVY arising from the new, diverse PVY ...
Glais, Laurent, Bellstedt, Dirk U., Lacomme, Christophe   +2 more
openaire   +4 more sources

Detection and Diagnosis of PVY

, 2017
The worldwide prevalence of Potato virus Y (PVY) poses a continuous challenge to efficient potato production. The accurate diagnosis of viruses such as PVY is inherently challenging due to the broad biological and genetic diversity of PVY strains that elicit a range of symptoms and diseases in various potato cultivars and related solanaceous species. A
Glais, Laurent, Chikh Ali, Mohamad, Karasev, Alexander V., Kutnjaj, Denis, Lacomme, Christophe   +4 more
openaire   +3 more sources

Evolution and Origin of PVY

, 2017
The mechanisms by which Potato virus Y variants are generated and selected are still unclear. Spontaneous mutations generated by uncorrected replication error and recombination events between viral isolates during co-infection of plant cells are the main likely source of genetic diversity.
Bellstedt, D. U., Glais, Laurent, Davie, K., Lacomme, C.   +3 more
openaire   +3 more sources

Molecular Characterization of Potato Virus Y (PVY) Using High-Throughput Sequencing: Constraints on Full Genome Reconstructions Imposed by Mixed Infection Involving Recombinant PVY Strains

Plants, 2021
In recent years, high throughput sequencing (HTS) has brought new possibilities to the study of the diversity and complexity of plant viromes. Mixed infection of a single plant with several viruses is frequently observed in such studies.
Michaela Mrkvová, Thierry Candresse, Lukas Predajňa   +2 more
exaly   +2 more sources

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Isolation of CP-PVY-Specific siRNA from PVY-Infected Plants of Solanum tuberosum

Russian Journal of Plant Physiology, 2023
Tools for activating crop resistance to viruses are now becoming part of a comprehensive plant protection strategy. Artificial resistance to viruses through expression of the viral envelope protein in transgenic plants is fairly well understood. An urgent issue is the study of small RNAs involved in the protective mechanisms of RNA interference ...
M. Yu. Sutula, Zh. K. Kabataeva, G. K. Komekova, T. S. Khosnutdinova, E. A. Zhakmanova   +4 more
openaire   +1 more source

Détection du virus (PVY) : directement sur tubercules

, 2015
Les travaux menés ont permis de définir une nouvelle méthodologie. Elle concilie fiabilité de détection du PVY et rapidité d'obtention des résultats de qualité sanitaire des semences.
Boulard, Frédéric, Glais, Laurent
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Genomic variability in Potato potyvirus Y (PVY): evidence that PVY N W and PVY NTN variants are single to multiple recombinants between PVY O and PVY N isolates

Archives of Virology, 2002
Fourteen Potato virus Y (PVY) isolates representative of PVY(O), PVY(N), PVY(NTN) and PVY(N)W groups were characterised at genomic level. Restriction fragment length polymorphism study (RFLP) of each gene of these isolates and sequencing of the first 2700 nucleotides of two PVY(N)W isolates were performed. A mosaic structure was revealed in PVY(N)W and
L, Glais, M, Tribodet, C, Kerlan
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Generation of PVY Coat Protein siRNAs in Transgenic Potatoes Resistant to PVY

American Journal of Potato Research, 2012
Global climate change has the potential to quickly alter the distribution and profile of crop pests and pathogens. Ready tools for mobilization of resistance into elite crops will be part of an integrated strategy to maintain agricultural productivity. Engineered virus resistance through expression of coat protein is well established. The mechanisms of
Kent F. McCue, Grisel Ponciano, David R. Rockhold, Jonathan L. Whitworth, Stewart M. Gray, Yuriy Fofanov, William R. Belknap   +6 more
openaire   +1 more source

The Occurrence and Characterization of New Recombinant Isolates of PVY Displaying Shared Properties of PVY^NW and PVY^NTN

Journal of Phytopathology, 2007
AbstractIsolates of Potato virus Y (PVY), collected in Syria, induced vein necrosis in tobacco but reacted to PVYO monoclonal antibody, and were therefore classified as PVYNW (or PVYN:O). The possible recombinant points within the genome were checked using a previously reported multiplex RT‐PCR.
M. Chikh Ali, T. Maoka, K. T. Natsuaki
openaire   +1 more source

Genetic diversity of potato virus Y (PVY): sequence analyses reveal ten novel PVY recombinant structures

Archives of Virology, 2017
The potato virus Y (PVY) complex includes five non-recombinant strains and a growing number of recombinants. Up to now, the bulk of these PVY recombinants were found to be composed of genome segments coming from only two "parental" genomes, PVYO and PVYEu-N, with a small minority including segments from other parents, e.g.
Kelsie J, Green, Celeste J, Brown, Alexander V, Karasev   +2 more
openaire   +2 more sources