Current status of vegetative compatibility groups in Fusarium oxysporum

Thirty-eight formae speciales (ff.sp.) of Fusarium oxysporum which have bee n subjected to vegetative compatibility grouping (VCG) analysis are listed, along with their updated 3-digit numerical codes. The number of VCGs ident ified within a forma specialis ranges from one (in 11 cases) to 24. Between two and six VCGs were identified in each of 20 ff.spp., whereas seven VCGs or more were identified in the remaining ff.spp. VCGs to which 4-digit num erical codes have been given are listed for 30 ff.spp.