Detección de Sugarcane yellow leaf virus en variedades comerciales de caña de azúcar en Tucumán, Argentina

BERTANI, R.P.; PERERA, M.F.; ARIAS, M.E.; LUQUE, C.; FUNES, C.; GONZALEZ, V.; CUENYA, M.I.; PLOPER, L. D.; WELIN, B.; CASTAGNARO, A P

Tucumán

Congreso; XIX Reunión Técnica Nacional de la Caña de Azúcar; 2014

Sociedad Argentina de Técnicos de la Caña de Azúcar

Yellow leaf disease, caused by Sugarcane yellow leaf virus (SCYLV), is widespread around the world; however, very little information is available from Argentina. The aims of this study were to assess the presence of SCYLV, characterize the virus and analyze its distribution in the main sugarcane production area of Argentina. For this purpose, 148 sugarcane leaf samples with and without symptoms were collected in 2011 and 2012 from the Tucumán province. One additional sample was collected in Salta, considered a different geographical and agroecological producing region. Results showed that SCYLV was present and widely distributed in commercial sugarcane varieties, both in symptomatic and asymptomatic leaves. A low but statistically significant positive correlation with virus detection and disease symptoms was found. BRA-PER was the only genotype detected by RT-PCR and sequence analysis of the capsid protein gene.