Meeting Abstract 69-8  Tuesday, Jan. 5 15:15  Micro-PAM in clams: A system for single-cell-scale spatial resolution of photosynthetic efficiency HOLT, A.L.*; SWEENEY, A.M.; University of Pennsylvania; University of Pennsylvania alholt@physics.upenn.edu We recently described a “solar transformer” in photosymbiotic tridacnid giant clams, an evolved system that functions to redistribute solar flux incident on the clam’s mantle to spatially […]

Meeting Abstract 69-5  Tuesday, Jan. 5 14:30  Like lemmings off a cliff?: Unraveling Symbiodinium migration in octocorals via canonical and non-canonical bleaching pathways PARRIN, AP*; HARMATA, KL; SAMOVA, EL; YAEGER, MA; BLACKSTONE, NW; Northern Illinois University; Northern Illinois University; Northern Illinois University; Northern Illinois University; Northern Illinois University apparrin@gmail.com Octocorals remain one of the understudied groups of […]

Meeting Abstract 69-2  Tuesday, Jan. 5 13:45  Host Cell Division and Symbiont Population Dynamics in the Symbiotic Anemone Aiptasia sp. TIVEY, T.R.*; WAIANUHEA, L.K.; WEIS, V.M.; Oregon State University tiveyt@onid.orst.edu http://tiveyt@onid.orst.edu The cnidarian-dinoflagellate endosymbiosis relies on the cellular coordination of its two partners, algal symbionts and the host cnidarian cells that contain them. We examined the effect […]

Meeting Abstract 69-1  Tuesday, Jan. 5 13:30  Biochemical assessment of the coral-dinoflagellate symbiosis: Enzymes of each partner show evidence of adaptation to different thermal regimes VELASCO, B.; CELA, B.; FIELDS, P. A.*; Franklin and Marshall College; Franklin and Marshall College; Franklin and Marshall College peter.fields@fandm.edu Tropical reef-building corals obtain most of their energy in the form of […]

Meeting Abstract 69-8  Friday, Jan. 6 15:15 – 15:30  The evolutionary and embryonic origins of the gnathostome vertebral skeleton CRISWELL, KE*; COATES, MI; GILLIS, JA; University of Chicago; University of Chicago; University of Cambridge kcriswell@uchicago.edu Vertebral anatomy and development vary across jawed vertebrates (gnathostomes). Centra, in particular, have originated independently in numerous gnathostome clades, with distinct morphologies […]

Meeting Abstract 69-4  Friday, Jan. 6 14:15 – 14:30  Spiralian-specific genes in ciliary bands WU, L*; LAMBERT, JD; HIEBERT, LS; MASLAKOVA , SA; KLANN, M; SEAVER , EC; PASSAMANECK, YJ; BASTIN, BR; CHNEIDER, SQ; Univ. of Rochester; Univ. of Rochester; Univ. of Oregon; Univ. of Oregon; Univ. of Florida; Univ. of Florida; Univ. of Hawaii; Iowa State […]

Meeting Abstract 69-2  Friday, Jan. 6 13:45 – 14:00  Modularity begets brachycephaly: Repeated patterns of neurocranial evolution in Neotropical electric fishes EVANS, K*; WALTZ, B; TAGLIACOLLO, V; CHAKRABARTY, P; ALBERT, J; University of Louisiana at Lafayette; University of Louisiana at Lafayette; University of Louisiana at Lafayette; Louisiana State University; University of Louisiana at Lafayette kxe9300@louisiana.edu http://koryevans.weebly.com/ The […]

Meeting Abstract 69-3  Friday, Jan. 6 14:00 – 14:15  Ion flux controls left-right heart and gut asymmetry in Ciona intestinalis. PALMQUIST, KH*; DAVIDSON, BJ; Swarthmore College; Swarthmore College kpalmqu1@swarthmore.edu During development, bilaterian organisms are patterned along the left-right axis. While the TGFβ-family member, Nodal, is thought to play a highly conserved role in this process, the impact […]

Meeting Abstract 69-5  Friday, Jan. 6 14:30 – 14:45  How the Mollusk Shell Margin controls Shell Shape JOHNSON, AB*; FOGEL, NS; LAMBERT, JD; University of Rochester; University of Rochester; University of Rochester adamjohnson@rochester.edu Many mollusks have external, calcified shells that protect against biotic and abiotic stresses. Shells are fantastically varied in shape, size, ornamentation, and pigmentation in […]

Meeting Abstract 69-1  Friday, Jan. 6 13:30 – 13:45  Expression of thyroid hormone receptors and deiodinases in the direct-developing frog Eleutherodactylus coqui LASLO, M*; HANKEN, J; Harvard University; Harvard University mlaslo@fas.harvard.edu Direct development is a reproductive mode in anurans that has evolved independently at least a dozen times. Direct-developing frogs, including the common coquí, Eleutherodactylus coqui, hatch […]