1. Laboratory of Virology, Department of Plant Sciences; Wageningen University; Droevendaalsesteeg 1 Wageningen PB 6708 the Netherlands
2. Department of Cell Biology, Institute of Biological Sciences; University of Brasília (UnB); Asa Norte 70910-900 Brasília DF Brazil
3. Embrapa Vegetable Crops (CNPH); BR 060 Km 09 70351-970 Brasília DF Brazil
4. Department of Bioinformatics and Structural Biochemistry; Institute of Biochemistry of the Romanian Academy; Splaiul Independentei 296 Bucharest 060036 Romania