Meeting Abstract S1.0  Monday, Jan. 4  Opening Remarks HOLLAND, L.Z.*; SOWER, S.*;

Meeting Abstract S1.8  Monday, Jan. 4  Midline signaling and the evolution of the lamprey forebrain RETAUX, S*; OSORIO, J; GUERIN, A; XIAO, JH; KANO, S; CNRS Institut A. Fessard, Gif sur Yvette, France; CNRS Institut A. Fessard, Gif sur Yvette, France; CNRS Institut A. Fessard, Gif sur Yvette, France; CNRS Institut A. Fessard, Gif sur Yvette, France; […]

Meeting Abstract S1.6  Monday, Jan. 4  Genomics of Amphioxus and Tunicates: Tracing the Evolution of the Endocrine System SHERWOOD, Nancy/M*; ROCH, Graeme/J; TELLO, Javier/A; University of Victoria; University of Victoria; University of Victoria nsherwoo@uvic.ca The sequencing of the genomes for amphioxus and tunicates has allowed us to examine the foundation of the endocrine system in species that […]

Meeting Abstract S1.1  Monday, Jan. 4  From Genome to Development in Amphioxus HOLLAND, L.Z.*; SHORT, S.; Univ. of California San Diego; Portsmouth Univ, U.K. lzholland@ucsd.edu Although gnathostome genomes (mammals, fish) were the first deuterostome genomes sequenced, genomes of most major deuterostome groups have now been sequenced. These include an agnathan (lamprey), ascidian and appendicularian tunicates, a cephalochordate […]

Meeting Abstract S1.2  Monday, Jan. 4  Evolution of reproductive endocrine system in chordates KUBOKAWA, K*; TANDO, T; Ocean. Res. Inst., Univ. of Tokyo; Ocean. Res. Inst., Univ. of Tokyo kubokawa@ori.u-tokyo.ac.jp The cephalochordate, amphioxus, is phylogenetically placed at the most primitive position in the chordate clade. Despite many studies on the endocrine system of amphioxus, any definitive evidence […]

Meeting Abstract S1.11  Monday, Jan. 4  Early vertebrate chromosome duplications and the evolution of the neuropeptide Y receptor gene regions LARHAMMAR, D; Uppsala Univ., Uppsala, Sweden Dan.Larhammar@neuro.uu.se The early stages of vertebrate evolution involved major genomic events, namely two tetraploidizations before the gnathostome radiation. The time points for divergence of hagfishes and lampreys relative to the two […]

Meeting Abstract S1.5  Monday, Jan. 4  Early deuterostome origins of the vertebrate head PANI, A; DARRAS, S; ARONOWICZ, J; LOWE, C J*; University of Chicago; IBDML-CNRS – Université de la Méditeranée; University of Chicago; University of Chicago clowe@uchicago.edu The early evolution of chordates has long been a subject of intense debate in zoology, and despite over one […]

Meeting Abstract S1.3  Monday, Jan. 4  Amphioxus thyroid hormone signaling pathway and the evolution of metamorphosis in chordates PARIS, M*; ESCRIVA, H; SCHUBERT, M; BRUNET, F; BRTKO, J; CIESIELSKI, F; JAMIN, E; CRAVEDI, JP; RENAUD, JP; SCANLAN, TS; HOLLAND, ND; LAUDET, V; Univ. of California, Berkeley; Lab. Arago, Banyuls sur mer; Ecole Normale Superieure de Lyon; Ecole […]

Meeting Abstract S1.10  Monday, Jan. 4  \’Post-2R\’ cyclostomes: a molecular phylogenetic view of the vertebrate ancestor KURAKU, S; University of Konstanz shigehiro.kuraku@uni-konstanz.de Whole genome sequencing and elaborate comparative analyses for early chordates and jawed vertebrates (gnathostomes) have revealed highly conserved gene repertoires between these distant lineages and their expansion in the vertebrate lineage through the so-called two-round […]

Meeting Abstract S1.9  Tuesday, Jan. 4  The role of genetically-defined lamina VIII interneurons in generating the mammalian locomotor rhythm. GOSGNACH, Simon; University of Alberta, Edmonton AB gosgnach@ualberta.ca Locomotor activity in mammals is generated by neural networks known as central pattern generators (CPGs), which are comprised of spinal interneurons located in the lower thoracic and lumbar spinal cord. Recently, […]