...Addgene. Lentivirus Versus Gamma-Retrovirus Lentiviruses and gamma-retroviruses fall under the Retroviridae...variety of cell types than retroviruses. Both lentiviruses and gamma-retroviruses use the same packaging ... Elements Glossary Lentiviruses are a type of retrovirus and belong to the Retroviridae family. Infection...BIV), and feline immunodeficiency virus (FIV). Retroviruses are partially characterized by their ability...accessory genes specific to each virus type, while retroviruses only contain packaging genes. From an experimental...main difference between lentiviruses and gamma-retroviruses is that lentiviruses are capable of infecting... actively dividing cell types, whereas gamma-retroviruses can only infect mitotically active cell types...