Fig. 3

Phylogenetic tree of Rad51 proteins inferred from maximum likelihood analysis. Archaeal Rad-A protein sequences (underlined) were used as an out-group. Numbers on the branches indicate bootstrap support from 1000 replicates. Among-site substitution rate heterogeneity was corrected using two gamma-distributed substitution rate categories and LG substitution model for amino acid substitutions. Diatom sequences are indicated in bold