Potyviruses are plant viruses that infect various kinds of economic crops and cause enormous losses.Here w e identified three potyviruses,East Asian passiflora virus(EAPV),telosma mosaic virus(TelMV)and passion fruit severe mottle virus(PFV),from passionfruit leaves show ing mosaic,chlorosis,and curly-leaf symptoms collected from Yuanmou County,Yunnan Province.Comparison of their coat proteins(CPs)show ed several similar characteristics and some differences.How ever,several basic physicochemical properties and secondary structure of their coat protein and some other properties are similar to each other.These results may provide useful data for the development of antibodies specific to these viruses.
