1. Department of Plant Protection, College of Agriculture, Urmia University, Urmia, Iran
2. Plant Protection Department, Faculty of Horticultural Science & Plant Protection, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
3. Plant Virology Research Center, Shiraz University, Shiraz, Iran
4. Istituto di Virologia Vegetale, CNR, Strada delle Cacce 73, 10135 Torino, Italy
5. National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD 20894, USA