Temperature-sensitive Mutants of Vesicular Stomatitis Virus; Homology and Nomenclature

SUMMARY Reciprocal complementation experiments in mouse L cells and BHK-21 cells show that the complementing temperature-sensitive (ts) mutants of vesicular stomatitis virus (VSV), Indiana serotype, isolated from the hr wild-type strain, belong to groups I, III and IV (Flamand & Pringle, 1971). Since the homologies of ts mutants isolated from three different wild-type strains growing in different host cells can be established by cross-complementation, proposals are made for a uniform nomenclature of ts mutants of VSV Indiana.