Fig. 4.

Phylogenetic position (16S rRNA gene sequences, neighbor-joining tree) of identified phylotypes. (A) Phylogenetic position of identified bacterial phylotypes associated with H. vulgaris. (B) Phylogenetic position of identified bacterial phylotypes associated with H. oligactis. Light gray shadowed bacterial groups indicate species-specific bacterial guilds; dark gray shadowed bacterial phylotypes indicate species-specific bacterial species. The branch length indicator displays 0.1 substitution per site.