FIG 2.

Molecular phylogeny of an anaerobic scuticociliate strain, GW7. The tree displays a maximum likelihood (ML) phylogeny of ciliates belonging to the class Oligohymenophorea. An alignment of 1,524 nucleotide sites of the eukaryotic 18S rRNA gene was used. Accession numbers in the DDBJ/EMBL/GenBank DNA database are shown in square brackets. Bootstrap support values higher than 70% are depicted on or below the internal branches. Boldface type indicates the members of the family Cyclidiidae, which is a systematically problematic taxon. Other systematically problematic taxa are underlined.