| genetic diversity of grapevine virus a in washington and california vineyards. | grapevine virus a (gva; genus vitivirus, family betaflexiviridae) has been implicated with the kober stem grooving disorder of the rugose wood disease complex. in this study, 26 isolates of gva recovered from wine grape (vitis vinifera) cultivars from california and washington were analyzed for their genetic diversity. an analysis of a portion of the rna-dependent rna polymerase (rdrp) and complete coat protein (cp) sequences revealed intra- and inter-isolate sequence diversity. our results indi ... | 2014 | 24168043 |