| havana tomato virus, a new bipartite geminivirus infecting tomatoes in cuba. | the cloning and nucleotide sequence of a new bipartite geminivirus found in cuba is described. dna a (2620 nt) and dna b (2586 nt) presented a genomic structure resembling that of other geminiviruses transmitted by bemisia tabaci. both components had a common region of 168 nt with a 95% identity. typical elements involved in replication and transcription were found in this region, though group-characteristic arrangement of iterons was not conserved in this virus. sequence was compared with gemin ... | 1998 | 9787659 |