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Babuvirus

Babuvirus is a genus of viruses, in the family Nanoviridae. Musa species serve as natural hosts. There are three species in this genus. Diseases associated with this genus include: stunting, severe necrosis and early plant death. BBTV induces banana bunchy top disease (BBTD).

Taxonomy
The genus contains the following species, listed by scientific name and followed by the exemplar virus of the species: • Babuvirus abacae, Abaca bunchy top virusBabuvirus cardamomi, Cardamom bushy dwarf virusBabuvirus musae, Banana bunchy top virus ==Structure and genome==
Structure and genome
Viruses in the genus Babuvirus are non-enveloped, with icosahedral and round geometries, and T=1 symmetry. The diameter is around 18-19 nm. Genomes are multipartite with 6 to 8 circular segments. Genome size is around 81 kb in totsl. ==Life cycle==
Life cycle
Viral replication is nuclear. Entry into the host cell is achieved by penetration into the host cell. Replication follows the ssDNA rolling circle model. DNA templated transcription is the method of transcription. The virus exits the host cell by nuclear pore export, and tubule-guided viral movement. Musa species serve as the natural host. The virus is transmitted via a vector (aphids). Transmission routes are vector. ==References==
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