a new potyvirus from butterfly flower (iris japonica thunb.) in zhejiang, china. | a filamentous virus isolated from iris japonica with mosaic symptoms was pathogenic to i. japonica and i. bulleyana but not to 12 virus indicator species. sequencing of the 3'-terminus of the genome showed that it was a potyvirus, most closely related to sunflower mosaic virus (63.2% identical), and phylogenetic analysis also showed a more distant grouping with tobacco etch and colombian datura viruses. the virus was detected by rt-pcr in symptomatic i. japonica plants from several regions of ch ... | 2008 | 18183351 |