FIG. 1.

Phylogenetic relationships of FTHFS and LigH-like sequences (partial sequences; 359 amino acids; accession numbers are given in brackets). The dendrogram was generated by using the gamma distance (2.0) analysis method with the unweighted pair group with mathematical average algorithm. P. vulgaris (accession no. AF295710) was used as the outgroup. The values at the nodes are the percentages of 500 bootstrap replicates supporting the branching order. Clones obtained from Spartina root and horse manure DNA have designations that begin with SR and H, respectively.