Fig. 8

Maximum likelihood phylogenetic trees of polyketide synthases (PKS) protein sequences. Phylogenetic tree of 73 PKS proteins which were identified after OrthoMCL analysis in which six species of Fusarium genus were included. The tree was generated using the maximum likelihood method, with the LG substitution model and a BIONJ initial tree. Branch robustness was analyzed by the approximate likelihood-ratio test (aLRT). The members in this phylogenetic tree are grouped into three major clades (identified by roman numbers I to III and highlighted in yellow, green, and cyan, respectively). Of note, clade III can be divided into two sub-clades: Sub-clade A (dark cyan color) and sub-clade B (light cyan color) with the FUB1 clade marked by a red dotted box. Abbreviations: FuFu (Fusarium fujikuroi), FuGr (Fusarium graminearum), FuOx (Fusarium oxysporum). FuSo (Fusarium solani), FuVe (Fusarium verticillioides) and FuEu (Fusarium sp. associated with KSBH). At the bottom-left is a rectangular tree layout in which clades I and II and the sub-clades III-A and III-B are collapsed