Study of main grapevine viruses transmission in breeding programs Marica Gasparro, Angelo Raffaele Caputo, Lucia Rosaria Forleo, Rocco Perniola, Vittorio Alba, Rosa Anna Milella and Donato Antonacci BIO Web of Conferences, 7 (2016) 01039 Published online: 26 October 2016 DOI: 10.1051/bioconf/20160701039