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One of the most important threats to tobacco cultivation is the Potato virus Y (PVY). Sources of resistance to PVY are found both in Nicotiana tabacum cultivars and in wild Nicotiana species. The high variability of the virus and the ability to break the existing resistance make it necessary to search for new resistance sources or to combine the ones that are already known. The aim of the study was...
Potato virus Y (PVY) is an important pathogen of tobacco. Growing resistant cultivars is the best way to prevent significant losses of the crop caused by this virus. However, the protection given by the commonly used resistance factor, called va gene, can be overcome by the highly virulent PVY strains. Therefore, tobacco breeding for resistance will benefit from introducing additional PVY resistance/tolerance...
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