Molecular characterization of two potato virus S isolates from late-blight-resistant genotypes of potato (Solanum tuberosum)

2009 ◽  
Vol 154 (11) ◽  
pp. 1861-1863 ◽  
Author(s):  
Y. H. Lin ◽  
K. L. Druffel ◽  
J. Whitworth ◽  
M. J. Pavek ◽  
Hanu R. Pappu
2013 ◽  
Vol 6 (5) ◽  
pp. 257-264 ◽  
Author(s):  
Pooja Sharma ◽  
Anurag Kumar Sahu ◽  
Rakesh Kumar Verma ◽  
Ritesh Mishra ◽  
R.K. Gaur

2014 ◽  
Vol 159 (8) ◽  
pp. 2115-2122 ◽  
Author(s):  
Y.-H. Lin ◽  
J. A. Abad ◽  
C. J. Maroon-Lango ◽  
K. L. Perry ◽  
H. R. Pappu

Planta ◽  
1998 ◽  
Vol 207 (2) ◽  
pp. 181-188 ◽  
Author(s):  
María José Carmona ◽  
Nely Ortega ◽  
Federico Garcia-Maroto

2016 ◽  
Vol 60 (04) ◽  
pp. 347-353 ◽  
Author(s):  
N. SIHELSKÁ ◽  
L. PREDAJŇA ◽  
A. NAGYOVÁ ◽  
K. ŠOLTYS ◽  
J. BUDIŠ ◽  
...  

2016 ◽  
Vol 34 (3) ◽  
pp. 317-328 ◽  
Author(s):  
Pablo Gutiérrez S. ◽  
Mauricio Marín M. ◽  
Daniel Muñoz E.

Potato virus Y (PVY) is one of the most severe viruses affecting the production of potato (Solanum tuberosum) in the world. This study presents a detailed molecular analysis using nextgeneration sequencing (NGS), IC-RT-qPCR and RT-PCR on the PVY isolates infecting seed-tubers and foliage of potato plants cv. Diacol-Capiro in La Union (Antioquia, Colombia). Analysis of incidence by IC-RT-qPCR in 15 random leaf samples of three cultivation plots and fifteen sprouting tuber eye-buds reveal infection levels between 13.4 and 80%; a higher incidence of 86.7% was observed in seed-tuber samples with threshold cycle (Ct) values as low as 24.3. Genome assembly from a bulk of foliage samples resulted in a consensus PVY genome (PVY_LaUnionF) of 9,702 nt and 399 polymorphic sites within the polyprotein ORF; while the assembled genome from sprouts of tubers has 9,704 nt (PVY_LaUnionT) and contained only six polymorphic nucleotide sites. Phylogenetic analysis demonstrates that the PVY isolates from leaf samples are in the recombinant PVYNTN group (sequence identity >99%); while those from tuber sprouts are in the PVYN/NTN group with identities above 95%. Sanger sequencing of viral capsid suggests the presence of a third variant related to PVYO, a prevalent strain reported in potato fields worldwide.


Plant Disease ◽  
1998 ◽  
Vol 82 (4) ◽  
pp. 434-436 ◽  
Author(s):  
K. D. Marshall-Farrar ◽  
M. McGrath ◽  
R. V. James ◽  
W. R. Stevenson

Late blight of potato (Solanum tuberosum), caused by Phytophthora infestans, recently reappeared in Wisconsin and was a significant production problem in 1994. P. infestans isolates collected in Wisconsin from 1993 to 1995 were characterized for the following traits: mating type, sensitivity to metalaxyl, and allozyme genotype for Glucose-6-phosphate isomerase (Gpi). Characterization of these isolates revealed that a new, more aggressive population (A2 mating type, metalaxyl resistant, and Gpi genotype 100/111/122) is displacing the old population (A1 mating type, metalaxyl sensitive, and Gpi genotype 86/100) in Wisconsin.


2014 ◽  
Vol 91 (6) ◽  
pp. 642-648 ◽  
Author(s):  
Yu-Hsuan Lin ◽  
Dennis A. Johnson ◽  
Hanu R. Pappu

2015 ◽  
Vol 75 (3) ◽  
pp. 389 ◽  
Author(s):  
Vinay Bhardwaj ◽  
Reena Sharma ◽  
Dalamu ◽  
A. K. Srivastava ◽  
R. Baswaraj ◽  
...  

2011 ◽  
Vol 12 (1) ◽  
pp. 39 ◽  
Author(s):  
Nancy L. Robertson ◽  
Jeffrey Smeenk ◽  
Jodie M. Anderson

Although all three viruses are commonly found in potatoes throughout the world, this is the first report of potato viruses from Alaska to be sequenced and molecularly analyzed for comparisons with known viruses. Accepted for publication 17 January 2011. Published 9 February 2011.


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