<Notes>Nucleotide Sequence Analysis for RNA 3 of pepo-, SO- and MY17-Strains of Cucumber Mosaic Virus and its Comparison with Y-Strain

RNA 3 sequence of pepo-, SO- and MY17-Cucumber Mosaic Virus (CMV), which infect Cucumis figarei at 36℃, was determined and compared with that of Y-CMV. The sequences indicated that both SO- and MY17-CMV were classified in subgroup I as pepo- and Y-CMV, which further supported that there were no relationships between the subgroups and the ability to infect systemically at 36℃. There were minor differences in the nucleotide sequence among pepo-, SO- and MY17-CMV RNA 3,however, no considerabledifferences in the nucleotide sequence homology were detected between Y- and the three other strains