Genetic Structure and Molecular Variability of Grapevine Fanleaf Virus in Sicily

Grapevine fanleaf virus (GFLV) is one of the main causes grapevine degeneration disease (GFDD) and present in almost all areas where cultivated. In this work, we ascertained presence spread GFLV different commercial vineyards four Sicilian provinces (Italy), its genetic structure molecular variability were studied. detail, a total 617 samples 11 autochthonous cultivars collected 20 vineyards. Preliminary screening by serological (DAS-ELISA) (RT-PCR) analyses for ArMV (arabis mosaic virus) detection conducted. Results obtained showed absence analyzed, while 48 out gave positive results to GFLV, 9 analyzed. Phylogenetic carried on GFLV-CP gene 18 sequences selected study certain degree among isolates, suggesting origin, probably as consequence continuous interchange GFLV-infected propagating material with other Italian regions or viticultural located countries.