Figure 2. Characterization of Aiptasia clonal lines CC7 (male), F003 (female), and H2 (female).

(a) Clonal lines appear morphologically similar, with minor variation in coloration and body size. (b) Maximum likelihood tree of ~2 kb concatenated SCAR genotyping markers²⁴ showing the relationship of the three clonal lines to twelve field-sampled Aiptasia sp. individuals²⁴ grouped into two genetic networks. Clonal lines are indicated by name; field-sampled individuals are named by their sampling location, with the second animal from the same location designed by’. Shown also are the endogenous Symbiodinium spp. (clades A-C and strain names) hosted by Aiptasia in the given genetic networks²⁴ and in the three laboratory clonal lines²²,²⁶; F003 symbiont characterization from this study.