Current-Season Infection With Ordinary and Recombinant Strains of <i>Potato virus Y</i> Has Detrimental Effects on Chipping Potato Yield and Tuber Quality

Weber, Elizabeth; Busse, James S.; Bethke, Paul C.

doi:10.1094/pdis-06-20-1281-re

Cited by 4 publications

(2 citation statements)

References 26 publications

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“…Among more than 50 viruses and the potato spindle tuber viroid (PSTVd), which may infect potato, only several ones are very harmful and widespread, such as potato virus Y (PVY), potato leafroll virus (PLRV), potato virus X (PVX), potato virus A (PVA), and PSTVd (Lacomme amd Jacquot, 2017; Kreuze et al, 2020). At present, the most economically important virus affecting the potato production globally, decreasing yield and its quality, is potato virus Y (PVY) (Nolte et al, 2004;Weber et al, 2021;Gao, 2020;Dupuis et al, 2023). Most damaging are recombinant strains between the classical PVY O and mild PVY N that appeared since the 1980s.…”

Section: Introductionmentioning

confidence: 99%

Molecular identification of extreme resistance genes to PVY among breeding lines and potato varieties of Ukrainian origin

Hadzalo,

Kyrychenko,

Bondus

et al. 2024

Agric. sci. pract.

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Aim. Molecular identification of two genes responsible for extreme resistance (ER) to potato virus Y (PVY), viz. Ryadg and Rychc. in potato lines and varieties bred in Ukraine. Methods. In total 78 potato samples (40 breed- ing lines and 38 varieties) were studied. To identify the Ryadg and Rychc genes, the molecular markers RYSC3 and Rу186, respectively, were used. The silica-based technique was used to isolate DNA from potato leaves or tubers. Amplified products were analysed with agarose gel-electrophoresis. Results. Molecular markers were used to evaluate 40 breeding lines produced by the Polissia Experimental Department of the Institute for Potato Research, the NAAS, the harvest of 2022, and 38 cultivars, registered in the period of 1981–2015, from the collection of the Ustymivka experimental station of the Institute of Plant Production n.a. V.Ya. Yuriev, the NAAS. Five varieties, Oksamyt, Horlytsia, Lybid, Ivankivska rannia, and Ikar, and 19 lines contained the marker for Rychc. The gene Ryadg marker was detected in one cultivar (Obriy) and eight breeding lines. Six lines carried both genes Ryadg and Rychc. Field evaluation against the natural PVY infection background indicated false-positive results of the presence of ER genes in Obriy and Lybid. The frequencies of the ER genes to PVY Ryadg and Rychc were considerably higher in the group of breeding lines than in the sample of varieties, 47.5 and 10.5 % for Rychc, and 20 and 0 % for Ryadg, respectively. Conclusions. Our study confirmed the possible presence of extreme resistance genes to PVY, Ryadg and Rychc, in 4 Ukrainian potato varieties and 21 breeding lines. A higher frequency of carriers of the resistance genes was present in the new breeding lines (52.5 %) than in the varieties already in production (10.5 %). The total frequency of both genes was fairly similar to the one detected in the earlier study. If the lines and varieties where the above-mentioned resistance genes were detected are truly resistant in the field and origin of these resistance genes in the Ukrainian potato material has still to be investigated.

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Section: Introductionmentioning

confidence: 99%

Molecular identification of extreme resistance genes to PVY among breeding lines and potato varieties of Ukrainian origin

Hadzalo,

Kyrychenko,

Bondus

et al. 2024

Agric. sci. pract.

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Section: Introductionmentioning

confidence: 99%

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2024

Agric. sci. pract.

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Prevalence of Recombinant Strains of Potato Virus Y in Seed Potato Planted in Idaho and Washington States Between 2011 and 2021

et al. 2022

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Potato virus Y (PVY) has emerged as the main reason for potato seed lot rejections, seriously affecting seed potato production in the United States throughout the past 20 years. The dynamics of PVY strain abundance and composition in various potato growing areas of the U.S. has not been well documented and understood up to now. The objective of this study was to find out the prevalence of PVY strains in potato fields in the Pacific Northwest (PNW), including seed potato production systems in the state of Idaho, and commercial potato fields in the Columbia Basin of Washington State between 2011-2021. Based on the testing of more than 10,000 foliar samples during Idaho seed certification winter grow-out evaluations of seed potato lots and seed lot trials in Washington State, a dramatic shift in the PVY strain composition was revealed in the PNW, between 2011 and 2016. During this time period, the prevalence of the ordinary, PVYO strain in seed potato dropped 8-10 fold, concomitantly with the rise of recombinant strains PVYN-Wi and PVYNTNa, which together accounted for 98% of all PVY-positives by 2021. In Idaho seed potato, PVYNTNa strain associated with the potato tuber necrotic ringspot disease (PTNRD) was found to increase three-fold between 2011-2019, accounting for 24% of all PVY-positives in 2019. Relatively mild foliar symptoms induced by recombinant PVY strains may be partially responsible for the proliferation of PVYN-Wi and PVYNTNa in potato crops. A spike of another PTNRD-associated recombinant, PVY-NE11, was recorded in the PNW between 2012-2016, but after reaching a 7-10% level in 2012-2013 this recombinant had disappeared from the PNW potato by 2019. Whole genome sequence analysis of the PVY-NE11 suggested this recombinant was introduced in the U.S. at least three times. The data on PVY strain abundance in the PNW potato crops suggest that virus management strategies need to consider the current dominance of the two recombinant PVY strains, PVYN-Wi and PVYNTNa.

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Current-Season Infection With Ordinary and Recombinant Strains of Potato virus Y Has Detrimental Effects on Chipping Potato Yield and Tuber Quality

Cited by 4 publications

References 26 publications

Molecular identification of extreme resistance genes to PVY among breeding lines and potato varieties of Ukrainian origin

Molecular identification of extreme resistance genes to PVY among breeding lines and potato varieties of Ukrainian origin

Untitled

Prevalence of Recombinant Strains of Potato Virus Y in Seed Potato Planted in Idaho and Washington States Between 2011 and 2021

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