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Characterization of potato virus Y populations in potato in Israel


Potato virus Y (PVY) is the most common virus infecting potato worldwide. We analysed potato tuber PVY infections from the major Israeli growing region in 2014-2017. Isolates were characterized by multiplex PCR according to Chikh-Ali et al. (Plant Disease 97, 1370, 2013), whose primers were not fully compatible with the Israeli isolates. New primers were designed for a multiplex PCR assay to differentiate the Israeli isolates. Three recombinant strains were observed: PVYNTNa (72% of the isolates), PVYNWi (24%) and PVYSyr-III (found only in 2015). The archetypal PVYO strain was found only once. The classical PVY strains have recently been displaced by recombinant forms, with PVYNTNa dominating. The Israeli isolates appear very similar to those of Europe (the seed tuber source), except for PVYSyr-III.

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We acknowledge the contribution of the Agricultural Research Organization, The Volcani Center, Rishon LeZion, Israel, no. 591/19. The authors thank the Chief Scientist’s Office of the Israeli Ministry of Agricultural and Rural Development (grant no. 132171614) for support.

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Authors and Affiliations



Liat Avrahami-Moyal: designed and carried out virology and sequencing, analyzed results, wrote the manuscript. Yehudit Tam: virology, ELISA identification of infected plants. Noa Sela: bioinformatics. Shanmugam Prakash: virology and sequencing. Yael Meller Harel: virology and sequencing. Menachem Bornstein and Ran Shulchani: assisted in experiments, care and maintenance of plants and growth facilities. Zion Dar: co-designed the project, advised on agricultural matters. Victor Gaba: initiated and designed the project, analyzed data, wrote the manuscript.

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Correspondence to Victor Gaba.

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Avrahami-Moyal, L., Tam, Y., Sela, N. et al. Characterization of potato virus Y populations in potato in Israel. Arch Virol 164, 1691–1695 (2019).

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