Archives of Phytopathology and Plant Protection (2020) 53, 112-126

Alina A. Dunich, Lidiya T. Mishchenko and Anna V. Dashchenko (2020)
PVY^N-Wi isolate from tomato plants in Ukraine
Archives of Phytopathology and Plant Protection 53 (3-4), 112-126
Abstract: PVY strains differ in their geographic distribution, pathogenicity, control strategies and the economic loss to solanaceous production. Last years, recombinant PVY strains are expanding in potato producing areas. One of the reasons is the difficult diagnostics of recombinant PVY strains. The aim of the study is to determinate the phylogenetic group (genotype) of new Ukrainian tomato isolate of potato virus Y inducing abaxial leafrolling symptoms. For the first time, the phylogenetic analysis of PVY tomato isolate ToUMP-18 (Accession No MN092711) was conducted in Ukraine. It was revealed that ToUMP-18 has the highest percentage of the 342 CP gene fragment sequence identity (98.5% nt and 98.1% aa) with European, Brazilian, Egyptian and Chinese potato isolates; with tomato isolates from Poland 08-rol, PS5, PC3, Prz1, PS₄ and SL16 from Slovakia and belongs to the PVY^N-Wi strain group. The Ukrainian tomato PVY isolate ToUMP-18 has 2 aa substitutions in the studied region of the CP gene in comparison with other PVY isolates that testifies about its higher divergence. This is the first report about recombinant PVY^N-Wi isolate occurrence on territory of Ukraine.
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Link to article at publishers website

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution
molecular biology - genes

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Potato virus Y	Tomato (Solanum lycopersicum)	Ukraine