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- Title
Occurrence of maize lethal necrosis in Ecuador: a disease without boundaries?
- Authors
Quito-Avila, D.; Alvarez, R.; Mendoza, A.
- Abstract
Maize plants displaying severe mosaic, chlorosis and, in some cases, necrosis were observed in two provinces of Ecuador. Shotgun sequencing of cDNA obtained from double-stranded RNA extracted from symptomatic samples revealed the presence of Sugarcane mosaic virus (SCMV) and Maize chlorotic mottle virus (MCMV), two components of maize lethal necrosis. In 2015, a survey conducted in Los Ríos, Manabí and Guayas, major maize production areas in the country, showed that the two viruses were present in a significant number of plants. Mixed infections were detected and associated with severe symptoms. MCMV was also detected in two hybrid seed lots, a significant finding for the epidemiology of the disease in Ecuador. The report of maize lethal necrosis, today the most significant virus disease of maize, in Ecuador is of great concern for producers in the South American continent because of the potential of an epidemic as that observed in east Africa in recent years.
- Subjects
ECUADOR; NECROSIS; VIRAL diseases of corn; SUGARCANE mosaic virus; CHLOROSIS (Plants); SHOTGUN sequencing; DOUBLE-stranded RNA; PLANT diseases; PLANTS
- Publication
European Journal of Plant Pathology, 2016, Vol 146, Issue 3, p705
- ISSN
0929-1873
- Publication type
Article
- DOI
10.1007/s10658-016-0943-5