SYMPOSIUM Gene Co-expression Modules Underlying Polymorphic and Monomorphic Zooids in the Colonial Hydrozoan, Hydractinia symbiolongicarpus

*Department of Molecular, Cellular and Biomedical Sciences, The University of New Hampshire, Durham, NH 03801, USA; Department of Ecology Evolution and Marine Biology, The University of California at Santa Barbara, Santa Barbara, CA 93106, USA; Department of Entomology, The University of California at Davis, Davis, CA 95616, USA; Department of Evolution and Ecology, Center for Population Biology, The University of California at Davis, Davis, CA 95616, USA