Meeting Abstract S3-1.6  Jan. 4  New light on an old problem: Insights into the development and evolution of the chaetognaths MATUS, D.Q.*; HEJNOL, A.; DUNN, C.W.; HALANYCH, K.M.; MARTINDALE, M.Q.; Kewalo Marine Laboratory, Univ. of Hawaii; Kewalo Marine Laboratory, Univ. of Hawaii; Kewalo Marine Laboratory, Univ. of Hawaii; Auburn Univ., Auburn; Kewalo Marine Laboratory, Univ. of Hawaii […]

Meeting Abstract S3-1.7  Jan. 4  Molecular controls of axis specification and cell determination in marine invertebrate embryos and larvae HENRY, Jonathan/Q*; PERRY, Kimbely/J; MARTINDALE, Mark/Q; University of Illinois-Urbana; University of Illinois-Urbana; University of Hawaii, PBRC Kewalo Marine Laboratory j-henry4@uiuc.edu Recent advances in cell and molecular biology have permitted an understanding of cell interactions and molecular signalling pathways […]

Meeting Abstract S3-1.8  Jan. 4  “Evolution of holopelagic annelids” or “Going pelagic when your relatives are stuck in the mud” HALANYCH, K.M.*; STRUCK, T.H.; Auburn Univ.; University of Osnabr�ck ken@auburn.edu Annelids are most commonly thought of as soil dwelling or benthic organisms. However, several annelid lineages have adopted a holopelagic existence. Some groups, such as tomopterids, are […]

Meeting Abstract S3-1.2  Jan. 4  Evolution of High-Acuity Vision in Coleoid Cephalopods SWEENEY, A*; JOHNSEN, S; Duke University; Duke University ams27@duke.edu Spherical lenses with a graded refractive index design are required for camera-like vision in aquatic animals. In cephalopods, these lenses are made of a group of closely related proteins collectively called S-crystallins. Our earlier work has […]

Meeting Abstract S3-1.5  Jan. 4  Comparative feeding ecology of the phylum Ctenophora HADDOCK, Steven H; MBARI haddock@mbari.org Comb jellies (Phylum Ctenophora) are gelatinous macroplankton which propel themselves using rows of ciliary “paddles”. They are predators on other plankton, often using cilia and sticky cells (rather than stinging cells) in a variety of ways to capture their prey. […]

Meeting Abstract S2-2.4  Jan. 4  Trunk neural crest cells contribute to plastron and nuchal bones in turtles GILBERT, S.F.*; BENDER, G.; YIN, M.; CEBRA-THOMAS, J. A. ; Swarthmore College; Swarthmore College; Swarthmore College; Millersville University sgilber1@swarthmore.edu The plastron of the hard-shelled turtle Trachemys scripta contains nine bones. These bones develop by intramembranous ossification within the dermis. The […]

Meeting Abstract S2-2.1  Jan. 4  The Origin of Vertebrate Fin Development FREITAS, R; ZHANG, G; COHN, MJ*; Department of Zoology and The University of Florida Genetics Institute, Gainesville, USA; Department of Zoology and The University of Florida Genetics Institute, Gainesville, USA; Department of Zoology and The University of Florida Genetics Institute, Gainesville, USA cohn@zoo.ufl.edu The origin of […]

Meeting Abstract S2-2.3  Jan. 4  On the origins of morphological novelty and its diverse developmental bases: the case of teeth SALAZAR-CIUDAD, I; University of Helsinki isaac.salazar@helsinki.fi Novelties have been repeatedly claimed to be an unresolved problem in evolutionary theory. Several definitions of novelty exist but most emphasize that novelties imply qualitative changes on the phenotype and not […]

Meeting Abstract S2-2.5  Jan. 4  Novelties: interactions between genetics, development and selection. GALIS, F.*; METZ, J.A.J.; Leiden University; Leiden University f.galis@biology.leidenuniv.nl Evolutionary changes involve changes at the genotypic and phenotypic level. Changes at the genetic level lead to developmental changes at the phenotypic level and these developmental changes lead to changes in the adult phenotype. Selection acts […]

Meeting Abstract S2-2.2  Jan. 4  A cellular molecular clock is ticking during proximo-distal limb outgrowth PASCOAL, Susana*; CARVALHO, Cla�dia; RODRIGUEZ-LE�N, Joaqu�n; DELPHINI, Marie Claire ; DUPREZ, Delphine; THORSTEINSD�TTIR, S�lveig ; PALMEIRIM, Isabel; Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho; Instituto Gulbenkian de Ci�ncia; Instituto Gulbenkian de Ci�ncia; CNRS, Universit� Pierre […]