Mastrevirus is a genus of ssDNA viruses, in the family Geminiviridae.

[1][2] Mastreviruses have an unusually diverse range of capsid proteins among the Geminiviridae.

While all other genera have species with essentially identical proteins (and their producing genetic sequences) among themselves, Mastrevirus has seven protein clusters and three species that each constitute their own.

[3] The following species are recognized:[2] Viruses in Mastrevirus are non-enveloped, with icosahedral geometries, and T=1 symmetry.

The virus exits the host cell by nuclear pore export, and tubule-guided viral movement.