Potato Cultivars Differ in Current Season Potato Virus Y (PVY) Infection

2009 ◽  
Vol 87 (1) ◽  
pp. 19-26 ◽  
Author(s):  
P. B. Hamm ◽  
D. C. Hane ◽  
M. J. Pavek ◽  
L. D. Leroux ◽  
S. L. Gieck ◽  
...  
Keyword(s):  
Potato Virus ◽  
Potato Virus Y ◽  
Potato Cultivars ◽  
Current Season

scholarly journals Monitoring Current-Season Spread of Potato virus Y in Potato Fields Using ELISA and Real-Time RT-PCR

Plant Disease ◽  
2013 ◽  
Vol 97 (5) ◽  
pp. 641-644 ◽  
Author(s):  
Manphool S. Fageria ◽  
Mathuresh Singh ◽  
Upeksha Nanayakkara ◽  
Yvan Pelletier ◽  
Xianzhou Nie ◽  
...  
Keyword(s):  
Real Time ◽  
Potato Virus ◽  
Potato Virus Y ◽  
Enzyme Linked Immunosorbent Assay ◽  
Rt Pcr ◽  
Pcr Assay ◽  
Current Season ◽  
Seed Market ◽  
Polymerase Chain ◽  
Time Of Harvest

The current-season spread of Potato virus Y (PVY) was investigated in New Brunswick, Canada, in 11 potato fields planted with six different cultivars in 2009 and 2010. In all, 100 plants selected from each field were monitored for current-season PVY infections using enzyme-linked immunosorbent assay (ELISA) and real-time reverse-transcription polymerase chain reaction (RT-PCR) assay. Average PVY incidence in fields increased from 0.6% in 2009 and 2% in 2010 in the leaves to 20.3% in 2009 and 21.9% in 2010 in the tubers at the time of harvest. In individual fields, PVY incidence in tubers reached as high as 37% in 2009 and 39% in 2010 at the time of harvest. Real-time RT-PCR assay detected more samples with PVY from leaves than did ELISA. A higher number of positive samples was also detected with real-time RT-PCR from growing tubers compared with the leaves collected from the same plant at the same sampling time. PVY incidence determined from the growing tubers showed a significant positive correlation with the PVY incidence of tubers after harvest. Preharvest testing provides another option to growers to either top-kill the crop immediately to secure the seed market when the PVY incidence is low or leave the tubers to develop further for table or processing purposes when incidence of PVY is high.

Screening Potato Cultivars for new Sources of Resistance to Potato virus Y

2014 ◽  
Vol 92 (1) ◽  
pp. 38-48 ◽  
Author(s):  
Jenny S. Rowley ◽  
Stewart M. Gray ◽  
Alexander V. Karasev
Keyword(s):  
Potato Virus ◽  
Potato Virus Y ◽  
Potato Cultivars ◽  
Sources Of Resistance

EVALUATION OF COMMERCIAL POTATO CULTIVARS FOR RESISTANCE TO THE TUBER NECROTIC STRAIN OF POTATO VIRUS Y

2013 ◽  
pp. 255-260
Author(s):  
M. Cloete ◽  
K. Mabasa ◽  
J. Mulabisana ◽  
A. Visser ◽  
J. Rakuambo ◽  
...  
Keyword(s):  
Potato Virus ◽  
Potato Virus Y ◽  
Potato Cultivars ◽  
Commercial Potato

scholarly journals The Ry-fsto gene from Solanum stoloniferum for extreme resistant to Potato virus Y maps to potato chromosome XII and is diagnosed by PCR marker GP122718 in PVY resistant potato cultivars

2005 ◽  
Vol 15 (1) ◽  
pp. 95-101 ◽  
Author(s):  
Bogdan Flis ◽  
Jacek Hennig ◽  
Danuta Strzelczyk-Żyta ◽  
Christiane Gebhardt ◽  
Waldemar Marczewski
Keyword(s):  
Potato Virus ◽  
Potato Virus Y ◽  
Potato Cultivars ◽  
Pcr Marker ◽  
Potato Chromosome ◽  
Solanum Stoloniferum

scholarly journals Strain-Specific Hypersensitive and Extreme Resistance Phenotypes Elicited by Potato virus Y Among 39 Potato Cultivars Released in Three World Regions Over a 117-Year Period

Plant Disease ◽  
2018 ◽  
Vol 102 (1) ◽  
pp. 185-196 ◽  
Author(s):  
Roger A. C. Jones ◽  
Stuart J. Vincent
Keyword(s):  
Potato Virus ◽  
Potato Virus Y ◽  
Secondary Infection ◽  
Potato Cultivars ◽  
Symptom Expression ◽  
Extreme Resistance ◽  
Potato Plants ◽  
Pvy Resistance ◽  
World Regions ◽  
Healthy Seed

Strain-specific hypersensitive (HR) and extreme resistance (ER) phenotypes elicited in potato plants by three Potato virus Y (PVY) isolates in strain groups PVYO (BL and DEL3) and PVYD (KIP1) were studied. PVYO and PVYD isolates elicit HR genes Ny or putative Nd, respectively, and all three isolates elicit ER gene Ry. They were inoculated to 39 Australasian, European, or North American potato cultivars released over a 117-year period and harvested tubers were replanted. Both primary and secondary symptoms were recorded. Two European cultivars always developed ER following sap and graft inoculation and, thus, carried comprehensive PVY resistance gene Ry. One Australasian and two European cultivars always developed susceptible phenotypes and, thus, lacked genes Ry, Ny, and putative Nd. Sap inoculation with isolate KIP1 elicited localized HR (LHR) in 31 cultivars and both LHR and systemic HR (SHR) in three others; thus, all carried putative Nd. Isolates BL and DEL3 both elicited susceptible phenotypes in 11 of these 34 cultivars but LHR alone, SHR alone, or both LHR and SHR in the other 23 which, therefore, all carry Ny. With these two isolates, SHR expression ranged from very severe to very weak, with the greatest numbers of isolate–cultivar combinations occurring in the severe category with BL (n = 11) and moderate category (n = 12) with DEL3. Within the same isolate–cultivar combination, overall, SHR symptom expression was weaker with secondary than primary infection. With both primary and secondary infection, SHR expression was most severe with KIP1 and weakest with DEL3. Genes Ny and putative Nd were present in cultivars released between 1939 and 2010 or 1893 and 2010, respectively, occurring in cultivars from all three world regions. These findings have important implications concerning breeding new PVY-resistant potato cultivars, especially for countries lacking healthy seed potato stocks, or where subsistence farmers cannot afford them. An alternative to including gene Ry is incorporating as many strain-specific PVY resistance genes as possible.

Biological characterization of six Australian isolates of potato virus Y and their serological detection by ELISA

1987 ◽  
Vol 38 (2) ◽  
pp. 395 ◽  
Author(s):  
R Heath ◽  
RJ Sward ◽  
JR Moran ◽  
AJ Mason ◽  
ND Hallam
Keyword(s):  
Host Plant ◽  
Potato Virus ◽  
Potato Virus Y ◽  
Potato Cultivars ◽  
Biological Characteristics ◽  
Serological Detection ◽  
Biological Characterization ◽  
Indicator Plants ◽  
Necrotic Symptoms

Six potato virus Y isolates from Victoria and Queensland were characterized on the basis of host plant reactions. Four isolates from potato produced symptoms in indicator plants and potato cultivars consistent with those caused by the PVYO group. Two isolates from tobacco produced necrotic symptoms on some tobacco cultivars characteristic of the PVYN group, but did not systemically infect potato cultivars and therefore could not be considered to belong to any of the previously described PVY strain groups. Despite the wide variation in their biological characteristics, an antiserum produced to one of the potato isolates was able to detect all six of the isolates when used in ELISA

Effect of temperature on resistance to Potato virus Y in potato cultivars carrying the resistance gene Ry chc

2018 ◽  
Vol 67 (7) ◽  
pp. 1629-1635 ◽  
Author(s):  
T. Ohki ◽  
M. Sano ◽  
K. Asano ◽  
T. Nakayama ◽  
T. Maoka
Keyword(s):  
Resistance Gene ◽  
Potato Virus ◽  
Potato Virus Y ◽  
Potato Cultivars ◽  
Effect Of Temperature
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