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Potato virus Y (PVY) is one of the most limiting viruses in the production of potato ( Solanum tuberosum and S. phureja ) worldwide. This virus is transmitted by aphids and infected tuber-seeds, and for this reason, disease management of PVY requires, among others, using certified planting material through highly sensitive techniques such as ELISA and RT-PCR. However, RT-PCR-based methods require primers of high specificity to allow the unequivocal detection of viruses in asymptomatic tissues. In this work, we report a new set of primers (PVY_Col) for detection of PVY by RT-PCR and real-time RT-PCR (RT-qPCR). These primers were designed using sequences of PVY isolates from Colombia and the rest of the world. An essential feature of these primers is their specificity, since they don´t amplify templates from Potato virus V (PVV), a close PVY relative that also infects potato crops in Colombia. It is expected that the PVY_Col primer set will be useful to support potato seed certification programs, epidemiological studies, and PVY disease management programs.

Diseño de cebadores específicos para la detección por RT-PCR del <i>Potato Virus</i> Y (PVY)