Abstract
Fumonisin, a mycotoxin produced by some members of Fusarium fujikuroi species complex, causes swine pulmonary edema and equine leukoencephalomalacia. Clustering of the genes involving fumonisin biosynthesis in the genome have been revealed. The FUM cluster poses many questions in regard to the process obtained by Fusarium and its evolution. In this mini review, fumonisin characteristics are described and the role of fumonisin for the producing fungi and the evolution of the FUM cluster were discussed.