Fig. 7
Results of phylogenetic analyses of the beauvericin/enniatin NRPS gene NRPS22 (ESYN1) as an example of analyses used to assess HGT of NRPS and PKS genes. a. ML tree of NRPS22 sequences from all species included in this study that have the gene. The colored boxes demarcate species complexes. Numerical values near branches are bootstrap values based on 1000 replications. b. Phylogenetic tree from NOTUNG reconciliation analysis using the species tree shown in Fig. 1 and default cost settings specified by NOTUNG. Yellow arrows indicate NOTUNG-inferred HGT events. c. Mean dS values for NRPS22 and HK genes from pairwise comparisons of members of FIESC and the Sambucinum and Fujikuroi species complexes shown in A. Plot of ratio of dS values for NRPS22:HK genes (i.e., dS ratio) for the 153 pairwise comparisons of taxa shown in A. The ratios at the bottom right of the plot that are highlighted with yellow are the only ratios that were less than 1 and correspond to comparison involving FIESC 23 or FIESC 25 with members of the Fujikuroi, Nisikadoi and Oxysporum complexes. The specific pairwise comparisons corresponding to the numbers along the X-axis are shown in the NRPS22 tab of Additional file 7