scholarly journals Disease progression in potato germplasm from different reaction groups against potato virus Y in relation to environmental factors

2016 ◽  
Vol 3 (3) ◽  
pp. 600-605
Author(s):  
Ata-ul- Haq ◽  
◽  
Yasir Iftikhar ◽  
Muhammad Irfan Ullah ◽  
Mustansar Mubeen ◽  
...  
1988 ◽  
Vol 31 (3) ◽  
pp. 501-509 ◽  
Author(s):  
M. N. Singh ◽  
S. M. Paul Khurana ◽  
B. B. Nagaich ◽  
H. O. Agrawal

2016 ◽  
Vol 96 (5) ◽  
pp. 737-742 ◽  
Author(s):  
Xianzhou Nie ◽  
Fayruza Lalany ◽  
Virginia Dickison ◽  
Donna Wilson ◽  
Mathuresh Singh ◽  
...  

Molecular markers reported to be linked to extreme resistance (ER) against Potato virus Y (PVY) were evaluated in potato germplasm. YES3-3A and YES3-3B, markers linked to Rysto, were detected in ‘Barbara’ and its three descendants that exhibit ER to PVY; RYSC3, a marker linked to Ryadg, was detected in breeding clones NY121 and NY123. Assessment of RYSC3 as a marker for selection for Ryadg-mediated ER validated its efficacy in identification of selections with ER to PVY.


Author(s):  
Chen Zhang ◽  
Kelly A. Zarka ◽  
Daniel G. Zarka ◽  
Jonathan L. Whitworth ◽  
David S. Douches

1979 ◽  
Vol 22 (3) ◽  
pp. 237-238 ◽  
Author(s):  
Michal Kostiw
Keyword(s):  

Plant Disease ◽  
2013 ◽  
Vol 97 (5) ◽  
pp. 641-644 ◽  
Author(s):  
Manphool S. Fageria ◽  
Mathuresh Singh ◽  
Upeksha Nanayakkara ◽  
Yvan Pelletier ◽  
Xianzhou Nie ◽  
...  

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.


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