Figure 3. Phylogenetic Tree Showing Evolutionary Relationship of Chaetomium sp. NF15.

The evolutionary history was inferred by using the maximum likelihood method, based on the Tamura-Nei model [1]. The tree with the highest log likelihood (-2629.5593) is shown. The percentage of trees in which the associated taxa are clustered together is shown next to the branches. The initial tree(s) for the heuristic search were obtained automatically by applying neighbor-joining and BioNJ algorithms to a matrix of pairwise distances estimated using the maximum composite likelihood (MCL) approach, and then selecting the topology with the superior log likelihood value. The tree is drawn to scale, with branch lengths measured in the number of substitutions per site. The analysis involved 13 nucleotide sequences. The included codon positions were 1st + 2nd + 3rd + Noncoding. All positions containing gaps and missing data were eliminated. There were a total of 318 positions in the final dataset. Evolutionary analyses were conducted in MEGA6 [2].