Figure 3.

One of eight most-parsimonious phylograms inferred from the combined data set for the seven color-coded lineages (numbered 1–7) of the F. graminearum clade (supported by bold node) and related B trichothecene-producing fusaria. The color-coded key indicates putative geographic origin of the seven lineages as defined in Table 1. Sequences of F. pseudograminearum, formerly known as F. graminearum Group 1 (18), were used to root the tree by the outgroup method. Decay indices are indicated below nodes; bootstrap intervals from 1,000 replicates are indicated above nodes. Numbers in parentheses above four nodes represent bootstrap support after excluding the hybrid strain 28721.