Phylogenetic relationships of Ceratomyxa dactyloptena n. sp. and Ceratomyxa siganicola based on molecular data. A. BI and ML phylogenetic tree based on SSU rRNA gene sequences of C. dactyloptena sp. nov., C. siganicola, and closely related species. Numbers given at nodes are Bayesian posterior probabilities and bootstrap support, with “-” indicating values less than 50%. “//” indicates that the branch is drawn 1/3 of the original length; B. BI and ML phylogenetic tree based on ITS rRNA gene sequences of the five strains of C. siganicola.