Comparison of synteny blocks in Fusarium graminearum with F. verticillioides and F. oxysporum . The genes on each chromosome of F. graminearum were compared with the genes of F. verticillioides (A) and F. oxysporum (B) and synteny blocks were analyzed by MCScanX. The results are shown in a cycle plot. F. graminearum contains four chromosomes, F. verticillioides 11, and F. oxysporum 15, respectively. Each colour represents an independent synteny block, the number of which is shown for each chromosome. (C) Detailed analysis of synteny blocks of each chromosome of F. graminearum with their collinear chromosomes of F. verticillioides by using MCScanX. The results are shown as a dual synteny plot. Thirteen non-conserved regions were identified on the chromosomes of F. graminearum, which were designated Nc1 to Nc13. Red triangle represents the region of F. graminearum that matches unassembled genomic regions of F. verticillioides (not shown).