Fig. 1.

Phylogenetic relationship of the sponges used in this study based on 18S rRNA sequences. The maximum-likelihood tree is constructed with a sequence alignment length of 1,694 nt; percentage bootstrapping values (1,000 replications) greater than 50% are shown. The tree is rooted to the coral Acanthogorgia granulata (FJ643593). Sponges from the present study are shown in bold. The Axinella clades are named according to Gazave et al. (25). The photographs of C. coralliophila and R. odorabile were provided by Heidi Luter (Townsville, Australia). The photograph of C. concentrica was provided by Michael Taylor (Auckland, New Zealand).