Triticum mosaic virus: An overview of biology, functional genomics, gene expression vector, and management strategies.

Triticum mosaic virus (TriMV; Poacevirus tritici) is the founding member of the genus Poacevirus within the family Potyviridae. TriMV is one of the components of the wheat streak mosaic disease (WSMD) complex, an economically significant wheat disease in the Great Plains region of the USA. TriMV contains a single-stranded positive-sense RNA genome of 10,266 nts with an unusually long 5'-nontranslated region of 739 nts.

The RNA Silencing Suppressor P8 From High Plains Wheat Mosaic Virus is a Functional Tetramer.

In plants, RNA interference (RNAi) serves as a critical defense mechanism against viral infections by regulating gene expression. However, viruses have developed RNA silencing suppressor (RSS) proteins to evade this defense mechanism. The High Plains wheat mosaic virus (HPWMoV) is responsible for the High Plains disease in wheat and produces P7 and P8 proteins, which act as RNA silencing suppressors.

Plant Viral Synergism: Co-Expression of P1 and NIa-Pro Cistrons of Wheat Streak Mosaic Virus and Triticum Mosaic Virus Is Required for Synergistic Interactions in Wheat.

Synergistic interactions among unrelated viruses in mixed infections can cause significant yield losses, and viral determinants of these interactions are poorly understood. Wheat ( L.) co-infection with wheat curl mite-transmitted wheat streak mosaic virus (WSMV) and Triticum mosaic virus (TriMV) results in disease synergism with a drastically increased symptom phenotype of stunted growth, leaf bleaching, and enhanced titers of both viruses.

First report of Triticum mosaic virus infecting oat crop in the United States.

Triticum mosaic virus (TriMV, genus , family ) was first reported in 2006 (Seifers et al. 2008) to infect wheat, and since then, it has been established as a constraint for US wheat production (Byamukama et al. 2013).

Key Challenges in Plant Pathology in the Next Decade.

Plant diseases significantly impact food security and food safety. It was estimated that food production needs to increase by 50% to feed the projected 9.3 billion people by 2050.