The mobilome is the entire set of mobile genetic elements in a genome. Mobilomes are found in eukaryotes,[1] prokaryotes,[2] and viruses.[3] The compositions of mobilomes differ among lineages of life, with transposable elements being the major mobile elements in eukaryotes, and plasmids and prophages being the major types in prokaryotes.[4] Virophages contribute to the viral mobilome.[5]