FIG. 1.

ML phylogenetic tree of F. oxysporum f. sp. cubense inferred from combined TEF and MtSSU rRNA sequence data. A tree with a similar topology was generated using BI and MP (tree scores, confidence interval = 0.882 and retention index = 0.988). The two major clades are indicated at their respective branches with A and B, while the various F. oxysporum f. sp. cubense lineages (I to VIII) are indicated to the right of the tree. For each taxon, VCG and race designation, geographic origin, and mating type are indicated. Bayesian posterior probabilities (>0.7) and bootstrap values (>70%) for the ML analyses and MP are indicated in that order at the internodes. The tree is rooted with Fusarium sp. strain NRRL 22903.