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ARS Home » Plains Area » Lincoln, Nebraska » Wheat, Sorghum and Forage Research » Research » Publications at this Location » Publication #354243

Research Project: Improved Winter Wheat Disease Resistance and Quality through Molecular Biology, Genetics, and Breeding

Location: Wheat, Sorghum and Forage Research

Title: Genetics and mechanisms underlying transmission of Wheat streak mosaic virus by the wheat curl mite

Author
item Tatineni, Satyanarayana - Ts
item Hein, Gary - University Of Nebraska

Submitted to: Current Opinion in Virology
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 7/19/2018
Publication Date: 8/15/2018
Citation: Tatineni, S., Hein, G.L. 2018. Genetics and mechanisms underlying transmission of Wheat streak mosaic virus by the wheat curl mite. Current Opinion in Virology. 33:47-54. https://doi.org/10.1016/j.coviro.2018.07.012.
DOI: https://doi.org/10.1016/j.coviro.2018.07.012

Interpretive Summary: Wheat streak mosaic disease complex is the most economically important viral disease caused by wheat curl mite (WCM)-transmitted Wheat streak mosaic virus (WSMV), Triticum mosaic virus, and High Plains wheat mosaic virus in the Great Plains region of North America. Since all these viruses are transmitted by the WCM, mixed infections by two or all three viruses are common in growers’ fields with exacerbated yield loss. This review presents an overview of biology and genetics of WCMs, recent developments on genetic determinants of WSMV for transmission by WCMs, and possible mechanism of WCM transmission of WSMV. This review also appraises the management strategies for WCMs and WCM-transmitted viruses and possible areas of future research for developing improved and durable resistance.

Technical Abstract: Wheat streak mosaic virus (WSMV, genus Tritimovirus; family Potyviridae) is the most economically important virus of wheat in the Great Plains region of the USA. WSMV is transmitted by the eriophyid wheat curl mite (WCM), Aceria tosichella Keifer. In contrast to Hemipteran-borne plant viruses, the mode and mechanism of eriophyid mite transmission of viruses have remained poorly understood, mostly due to difficulty of working with these _200 mm long microscopic creatures. Among eriophyid-transmitted plant viruses, relatively extensive work has been performed on population genetics of WCMs, WSMV determinants involved in WCM transmission, and localization of WSMV virions and inclusion bodies in WCMs. The main focus of this review is to appraise readers on WCM, WSMV encoded proteins required for WCM transmission and further details and questions on the mode of WSMV transmission by WCMs, and potential advances in management strategies for WCMs and WSMV with increased understanding of transmission.