introduction: several potyviruses infecting gramineous plants have been reported from iran. mosaic is the most widespread viral disease affecting sugarcane and maize production. sugarcane mosaic virus (scmv) is one of the causal agents of mosaic disease, which was first described in ohio in 1963. scmv belonging to the genus potyvirus, family potyviridae, is a single-stranded positive sense rna ...

Oliveira-Hofman, C., Wegulo, S. N., Tatineni, S., and Hein, G. L. 2015. Impact ofWheat streak mosaic virus and Triticum mosaic virus coinfection of wheat on transmission rates by wheat curl mites. Plant Dis. 99:1170-1174. Wheat streak mosaic virus (WSMV) and Triticum mosaic virus (TriMV) are transmitted by the wheat curl mite (WCM, Aceria tosichella), and coinfections of wheat by these viruses ...

Potyviruses (genus Potyvirus, family Potyviridae) are transmitted by aphids in a non-persistent manner and cause significant losses in many crops including bulbous ornamentals. Host range, symptoms, physical and biochemical properties of many potyviruses in bulbous ornamentals are reported, but, especially for viruses infecting ornamentals of minor economical importance, sequence data are still...

Wosula, E. N., McMechan, A. J., Oliveira-Hofman, C., Wegulo, S. N., and Hein, G. L. 2016. Differential transmission of two isolates ofWheat streak mosaic virus by five wheat curl mite populations. Plant Dis. 100:154-158. Wheat streakmosaic virus (WSMV), typemember of the genusTritimovirus in the family Potyviridae, is an economically important virus causing annual average yield losses of approx...

The pathogenicity properties of Potato virus Y (PVY; genus Potyvirus, family Potyviridae) isolates collected in naturally-infected pepper (Capsicum annuum) fields in Tunisia were evaluated against recessive resistance alleles at the pvr2 locus of pepper. Two pathotypes were observed. Pathotype (0,1,3) isolates were able to infect plants carrying the susceptibility allele pvr2, together with pvr...

The dN/dS ratio between nonsynonymous and synonymous substitution rates has been used extensively to identify codon positions involved in adaptive processes. However, the accuracy of this approach has been questioned and very few studies have attempted to validate experimentally its predictions. Using the coat protein (CP) of Potato virus Y (PVY; genus Potyvirus, family Potyviridae) as a case s...

Sweet potato virus disease (SPVD) is the most devastating disease of sweetpotato [Ipomoea batatas (L.) Lam.] globally. It is caused by the co-infection of plants with a potyvirus, sweet potato feathery mottle virus (SPFMV), and a crinivirus, sweet potato chlorotic stunt virus (SPCSV). In this study we report the use of cDNA microarrays, containing 2765 features from sweetpotato leaf and storage...