FIGURE 1.

The genome organization of Soybean mosaic virus. The diagram was drawn based on the nucleotide sequence of SMV N strain (Eggenberger et al., 1989). The colored boxes represent 11 proteins encoded by SMV genome. The black lines at the 5′ and 3′ ends represent 5′ and 3′ untranslated region (UTR). The horizontal arrow and the star indicate the start and stop codons of the SMV polypeptide, respectively. The numbers above the vertical lines indicate the start positions of the SMV proteins. The sizes of the SMV proteins (the numbers of amino acids) are indicated by the blue numbers below the protein names. The PIPO embedded in the P3 is shown by the overlapping dark blue box with the start and stop positions labeled, respectively. The diagram is not drawn in scale.