| additional rep-encoding dnas associated with banana bunchy top virus. | banana bunchy top nanovirus (bbtv) has a multicomponent circular single-stranded dna (cssdna) genome consisting of at least six components. we have cloned, sequenced and analysed two additional cssdna components, designated bbtv-s1 and s2, associated with a taiwanese bbtv isolate. the sequences of bbtv-s1 and s2 comprised 1109 and 1095 nucleotides (nt), respectively, and like bbtv dna-1, potentially encoded replication initiation proteins (reps). however, the genome organisation of bbtv-s1 and s ... | 2001 | 11266219 |