The wheat curl mite, Aceria tosichella Keifer, is an eriophyid pest of wheat, although its primary economic impact on wheat is due to the transmission of Wheat streak mosaic (WSMV), Wheat mosaic (also known as High Plains virus), and Triticum mosaic (TriMV) viruses. These viruses cause significant annual losses in winter wheat production throughout the western Great Plains. Temperature and humi...

Viral coat proteins function in virion assembly and virus biology in a tightly coordinated manner with a role for virtually every amino acid. In this study, we demonstrated that the coat protein (CP) of Wheat streak mosaic virus (WSMV; genus Tritimovirus, family Potyviridae) is unusually tolerant of extensive deletions, with continued virion assembly and/or systemic infection found after extens...

The nucleic acid of a serologically distinct potyvirus, originally isolated out of sugar cane from Pakistan, was reverse transcribed and the 3' terminal 2000 bp was PCR amplified, cloned, and sequenced. Phylogenetic comparisons of viruses representing each genus of the Potyviridae show that the Pakistani isolate is most closely related to the rymoviruses wheat streak mosaic virus (WSMV) and bro...

A series of in-frame and nested deletion mutations which progressively removed 5'-proximal sequences of the Wheat streak mosaic virus (WSMV) HC-Pro coding region (1152 nucleotides) was constructed and evaluated for pathogenicity to wheat. WSMV HC-Pro mutants with 5'-proximal deletions of 12 to 720 nucleotides systemically infected wheat. Boundary sequences flanking the deletions were stable and...

High Plains wheat mosaic virus (HPWMoV, genus Emaravirus) has an octopartite, negative-sense RNA genome, each segment encoding a single open reading frame. The is transmitted by the curl mite (Aceria tosichella) (Tatineni et al., 2014). HPWMoV been reported from Argentina, Australia, Canada, New Zealand, Ukraine and USA (Abdullahi 2020; Snihur 2020). Mixed infections of Wheat streak (WSMV, Trit...

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...

Seifers, D. L., Tatineni, S., and French, R. 2013. Variants of Triticum mosaic virus isolated from wheat in Colorado show divergent biological behavior. Plant Dis. 97:903-911. Triticum mosaic virus (TriMV) is a recently discovered virus infecting wheat. We compared Colorado isolates C10-492 and C11-775 with the 06-123 isolate. Comparisons were made using enzyme-linked immunosorbent assay (ELISA...

Triticum mosaic virus (TriMV) was first identified infecting wheat (Triticum aestivum L.) in Kansas in 2006 (16). TriMV has since been identified from infected wheat in: Colorado, Nebraska, Oklahoma, South Dakota, Texas, and Wyoming (2). The virus is mechanically transmissible, and associated with a 35-kDa coat protein when analyzed by sodium dodecyl sulfate polyacrylamide gel electrophoresis (...