Gammaretrovirus

**Semantic type:** Virus

**Definition:** A genus of the family Retroviridae. Some species contain oncogenes that may cause leukemias or sarcomas. Some Gammaretrovirus genomes share sequences with endogenous viral elements (ERV) found in mammalian genomes..

**Synonyms:** - Retroviruses, Type C, Mammalian - Type C Mammalian Retrovirus