Determination of genetic diversity of grapevine fanleaf virus in vineyards of East Azerbaijan Province


Grapevine fanleaf virus (GFLV) is one of the oldest viral diseases of vineyards and it is more common in a few provinces of Iran such as East Azerbaijan (Moghan and Maragheh) and Isfahan. The name of this virus is derived from the symptoms in the leaves of this virus-infected grape tree. In the current study, it was tried to investigate the genetic variation of GFLV in East Azerbaijan province (located in Iran). For this purpose, 310 leaf samples were randomly collected during the growing season of 2017-2018. Using specific antibodies raised against Iranian isolate of GFLV, 197 samples were found to be infected with GFLV in indirect ELISA. Nucleotide sequence identities of 87-90% were found between the coat protein region of isolates of this study and that of deposited in the GenBank previously.


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