Nucleotide sequence of the 3′ terminal region of the genome of four Lettuce mosaic virus isolates from Greece and Yemen

1999 ◽  
Vol 144 (8) ◽  
pp. 1619-1626 ◽  
Author(s):  
F. Revers ◽  
R. A. A. van der Vlugt ◽  
S. Souche ◽  
M. Lanneau ◽  
H. Lot ◽  
...  
Keyword(s):  
Nucleotide Sequence ◽  
Mosaic Virus ◽  
Terminal Region ◽  
Lettuce Mosaic Virus ◽  
Virus Isolates

Molecular Characterization of the 3'-Terminal Region of Turnip mosaic virus Isolates from Eastern China

2007 ◽  
Vol 155 (6) ◽  
pp. 333-341 ◽  
Author(s):  
Y.-P. Tian ◽  
X.-P. Zhu ◽  
J.-L. Liu ◽  
X.-Q. Yu ◽  
J. Du ◽  
...  
Keyword(s):  
Mosaic Virus ◽  
Molecular Characterization ◽  
Eastern China ◽  
Turnip Mosaic Virus ◽  
Terminal Region ◽  
Virus Isolates

scholarly journals Quantitative control of Lettuce mosaic virus fitness and host defence inhibition by P1-HCPro

2007 ◽  
Vol 33 (2) ◽  
pp. 119-123
Author(s):  
Renate Krause-Sakate ◽  
Florence Richard-Forget ◽  
Elise Redondo ◽  
Marcelo Agenor Pavan ◽  
Francisco Murilo Zerbini ◽  
...  
Keyword(s):  
Mosaic Virus ◽  
Resistance Gene ◽  
Viral Genome ◽  
Host Defence ◽  
Post Inoculation ◽  
Lettuce Mosaic Virus ◽  
European Isolate ◽  
Recombinant Viruses ◽  
Virus Isolates ◽  
Virus Fitness

Two Lettuce mosaic virus isolates capable of overcoming the resistance afforded by the resistance gene mo1² in lettuce, LMV-AF199 from Brazil, and LMV-E, an European isolate, were evaluated for the rapidity and severity of symptoms induced on the lettuce variety Salinas 88 (mo1²). The mosaic symptoms on Salinas 88 plants inoculated with LMV-AF199 appeared 7 days post-inoculation (dpi) and 15 dpi for LMV-E. The symptoms induced by LMV-AF199 in this cultivar were also more severe than those induced by LMV-E. In order to identify the region of the viral genome responsible for this phenotype, recombinant viruses were constructed between these isolates and the phenotype of each recombinant was analysed. The region encoding proteins P1 and HcPro from LMV-AF199 was associated with the increased virulence in Salinas 88.

scholarly journals Lettuce mosaic virus Pathogenicity Determinants in Susceptible and Tolerant Lettuce Cultivars Map to Different Regions of the Viral Genome

2001 ◽  
Vol 14 (6) ◽  
pp. 804-810 ◽  
Author(s):  
Elise Redondo ◽  
Renate Krause-Sakate ◽  
Shu-Jun Yang ◽  
Hervé Lot ◽  
Olivier Le Gall ◽  
...  
Keyword(s):  
Mosaic Virus ◽  
Resistance Genes ◽  
Cdna Clones ◽  
Mild Mosaic ◽  
Recessive Resistance ◽  
Lettuce Mosaic Virus ◽  
Severe Stunting ◽  
Recessive Genes ◽  
Leaf Deformation ◽  
Virus Isolates

Full-length infectious cDNA clones were constructed for two isolates (LMV-0 and LMV-E) of Lettuce mosaic virus (LMV), a member of the genus Potyvirus. These two isolates differ in pathogenicity in susceptible and tolerant-resistant lettuce cultivars. In susceptible plants, LMV-0 induces mild mosaic symptoms, whereas LMV-E induces severe stunting, leaf deformation, and a necrotic mosaic. In plants carrying either of the two probably allelic recessive resistance genes mo11 or mo12, LMV-0 is restricted partially to the inoculated leaves. When a systemic invasion does occur, however, symptoms fail to develop. LMV-E overcomes the protection afforded by the resistance genes, resulting in systemic mosaic symptoms. Analysis of the behavior of recombinants constructed between the two virus isolates determined that the HC-Pro protein of LMV-E causes the severe stunting and necrotic mosaic induced by this isolate in susceptible cultivars. In contrast, the ability to overcome mo1 resistance and induce symptoms in the resistant-tolerant cultivars was mapped to the 3′ half of the LMV-E genome. These results indicate that the ability to induce severe symptoms and to overcome the protection afforded by the recessive genes mo11 or mo12 are independent phenomena.

Nucleotide sequence of the 3?-terminal region of the genome confirms that pea mosaic virus is a strain of bean yellow mosaic potyvirus

1994 ◽  
Vol 136 (3-4) ◽  
pp. 381-387 ◽  
Author(s):  
X. W. Xiao ◽  
M. J. Frenkel ◽  
C. W. Ward ◽  
D. D. Shukla
Keyword(s):  
Nucleotide Sequence ◽  
Mosaic Virus ◽  
Terminal Region
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