The nematode-borne Grapevine fanleaf virus, from the genus Nepovirus in the family Comoviridae, causes severe degeneration of grapevines in most vineyards worldwide. We characterized 347 isolates from transgenic and conventional grapevines from two vineyard sites in the Champagne region of France for their molecular variant composition. The population structure and genetic diversity were examin...

The movement protein genes from several isolates of ArMV and GFLV of different geographical origins were amplified by RT/PCR using degenerate primers, cloned and sequenced. A single pair of degenerate primers was designed from these sequences to allow the simultaneous amplification of parts of the movement protein genes of ArMV and GFLV. Their use in an immunocapture-RT/PCR for the detection of...

the incidence of grapevine virus a (gva) is reported from almost all of the major grapevine growing regions in iran. grapevine is vegetatively propagated by rooting of cuttings or grafting. in such plants, viral diseases are transmitted from stock plants to the progeny. therefore, the control of grapevine viruses can be achieved primarily through production of healthy stock plants. in the p...

Abstract Viral diseases in grapevine cause large economic losses due to decreased irregular yield and unbalanced ripening, can even lead plant mortality. There is a number of viral agents, few them have prominent impact their worldwide distribution, virulence, incidence. Although previous research has evaluated variations load between organs time since infection, there still lack knowledge on h...