Incidence and Prevalence of Aphid-Borne Viruses Infecting Strawberry-Producing Regions in Argentina phid-Borne Viruses Infecting Strawberry

CECILIA LUCIANI; MARCOS GIOVANI CELLI; ADA KARINA TORRICO; FLORENCIA ASINARI; ELISABETH POZZI; ANDREA PEÑA MALAVERA; DANIEL SANTIAGO KIRSCHBAUM; MARIA CECILIA PEROTTO; VILMA CECILIA CONCI

ANNALS OF APPLIED BIOLOGY

WILEY-BLACKWELL PUBLISHING, INC

Lugar: Londres; Año: 2018

0003-4746

The incidence and prevalence of strawberry viruses were determined in surveys of randomly selected strawberry plants grown in different regions of Argentina. In 2009 and 2010, 1,034 plants from 28 fields and 1,060 plants from 33 fields, respectively, were collected from Lules and Coronda. The samples were analyzed by DAS-ELISA to detect Strawberry mild yellow edge virus (SMYEV). In 2014, 606 plants from 43 fields in Lules, Coronda, and Mar del Plata were analyzed by RT-PCR with primers specific for SMYEV, Strawberry crinkle virus (SCV), Strawberry mottle virus (SMoV), and Strawberry polerovirus 1 31 (SPV1). The SMYEV incidence was 4 to 35%, while the prevalence was 60 to 100%, depending on the year and region sampled. Meanwhile, SMoV and SPV1 incidences were 8 to 17%, and prevalences were 46 to 62%, depending on the virus and region sampled. Moreover, SCV was observed at relatively low levels (incidence, 0.5 to 8%; prevalence, 8 to 50%), although it was more abundant in Mar del Plata than in the other analyzed regions. Spearman?s correlation analysis indicated that SCV and SMYEV were correlated with disease symptoms (P< 0.005). A principal component analysis revealed a close relationship between SMYEV and SCV in Mar del Plata, in which the lowest temperatures were recorded. Interactions among viruses, regions, and climatic conditions will need to be studied in greater detail. Accurately determining the incidence and prevalence of viruses in different regions will improve estimations of possible damages or yield decreases caused by viral infections during strawberry production.