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ARS Home » Pacific West Area » Corvallis, Oregon » Horticultural Crops Disease and Pest Management Research Unit » Research » Publications at this Location » Publication #394825

Research Project: Development of Knowledge-based Approaches for Disease Management in Small Fruit and Nursery Crops

Location: Horticultural Crops Disease and Pest Management Research Unit

Title: An update on old, new, and emerging viruses infecting sugarcane

item DAUGROIS, JEAN HEINRICH - Cirad, France
item Mollov, Dimitre
item GAO, SAN-JI - Northwest Agriculture And Forestry University
item FERNANDEZ, EMMANUEL - Cirad, France
item FILLOUX, DENIS - Cirad, France
item ROUMAGNAC, PHILIPPE - Cirad, France
item ROTT, PHILIPPE - Cirad, France

Submitted to: Proceedings of the International Society of Sugarcane Technologists
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 12/15/2022
Publication Date: 3/10/2023
Citation: Daugrois, J. H., Mollov, D., Gao, S. J., Roumagnac, P., & Rott, P. 2023. An update on the old, new, and emerging viruses infecting sugarcane. Proceedings of the International Society of Sugar Cane Technologists. 31:550–557.

Interpretive Summary: In this paper we discuss the importance of sugarcane viruses. As recent as 10 years ago only handful of viruses were described to infect sugarcane. With the advancement of new technologies like high throughput sequencing previously uncharacterized viruses are being described. Here we provide an overview of all viruses, their taxonomy, and host ranges. Addressing the importance of each sugarcane infecting virus, this paper provides better understanding on disease etiology and economical importance, which should facilitate better crop management strategies.

Technical Abstract: At least 24 viruses belonging to 10 different virus families infect sugarcane and almost all of them can cause disease. Their impact on sugarcane production varies according to the virus species and the geographical location. Some of these sugarcane-infecting viruses have been found in other cultivated plants (e.g. sorghum and maize) or in non-cultivated hosts (such as grass weeds and ruderal plants). Viruses such as maize striate mosaic virus (MSMV), maize yellow mosaic virus (MaYMV), sugarcane striate virus (SStrV), sugarcane white streak virus (SWSV), sugarcane chlorotic streak virus (SCSV), and a new umbravirus (sugarcane umbra-like virus) were only reported recently. In contrast, other viruses such as sugarcane Fiji disease virus (FDV) and sugarcane mosaic virus (SCMV) have been known for decades. Up to a few years ago, sugarcane streak mosaic virus (SCSMV) caused yield losses only in Asia but it was identified in Côte d’Ivoire in 2018 and this virus constitutes now a new threat to sugarcane production in Africa. SStrV was only found in germplasm collections in the USA and Guadeloupe but is present in commercial varieties and widespread in China. The effect of most recently discovered virus species on yields of commercial sugarcane varieties is unknown. Nevertheless, discovery of new or emerging virus pathogens has a great impact on movement of sugarcane germplasm around the world and needs to be considered in sugarcane quarantines.