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Nucleotide pairwise identity color matrix of coat protein (cp) gene sequences of narcissus late season yellows virus (NLSYV) and narcissus yellow stripe virus (NYSV) isolates calculated by SDT 1.2 program (Muhire et al. 2013). Corresponding regions of turnip mosaic virus (TuMV), scallion mosaic virus (SCaMV) and wild onion symptomless virus (WoSV) were included for comparison. NLSYV and NYSV isolates from this study are shown in blue and red, respectively
