Meeting Abstract 29.2  Monday, Jan. 4  How many mouths are too many? Induction of oral fates in the cnidarian Nematostella vectensis. HARMON, S.; BURTON, P.M.*; Wabash College; Wabash College burtonp@wabash.edu Although embryogenesis, regeneration, and asexual reproduction are all common developmental modes within Metazoa, data directly comparing these modes remains sparse. The sea anemone Nematostella vectensis is capable […]

Meeting Abstract 29.3  Monday, Jan. 4  Evolution of developmental trajectories: regeneration and fission in naidid annelids ZATTARA, E.E.**; BELY, A.E.; University of Maryland,College Park ezattara@umd.edu Fission has evolved in many phyla, and several lines of evidence suggest that this new developmental trajectory arises by modification of pre-existing regenerative capabilities. To investigate how fission evolves from regeneration, we […]

Meeting Abstract 29.5  Monday, Jan. 4  Echinoderm nervous system as an emerging model to study neural regeneration MASHANOV, V.S.**; ZUEVA, O.R.; HEINZELLER, T.; GARCIA-ARRARAS, J.E.; University of Puerto Rico; University of Puerto Rico; LMU, Munich; University of Puerto Rico mashanovvlad@googlemail.com The phylum Echinodermata is of particular interest to a regeneration researcher for at least two main reasons. […]

Meeting Abstract 29.6  Monday, Jan. 4  Central Nervous System Development and Regeneration in Hemichordates LUTTRELL, S.; BENGTSSON, B.C.; SWALLA, B.J.*; University of Washington bjswalla@u.washington.edu Hemichordates share several characteristics with chordates, a Hox-specified A-P axis, pharyngeal gill slits, a dorsal central nervous system (CNS) and an embryonic postanal tail in some species. Ptychoderids are the more complex of […]

Meeting Abstract 29.1  Monday, Jan. 4  Bloody Whole Body Regeneration! BROWN, FD*; KEELING, EL; LE, AD; SWALLA, BJ; University of Washington, Seattle; Universidad de los Andes, Bogotá; University of Washington; California Polytechnic State University, San Luis Obispo; University of Washington, Seattle federico.brown@tuebingen.mpg.de Colonial ascidians exhibit one of the most extreme cases of regeneration. Upon removal of all […]

Meeting Abstract 29.1  Wednesday, Jan. 5  The impacts of repeated cold exposure in insects SINCLAIR, BJ*; MARSHALL, KE; ZHANG, J; The University of Western Ontario bsincla7@uwo.ca In nature, insects are exposed to repeated bouts of environmental stress, although laboratory experiments seldom reflect this. We have been using insect cold tolerance as a model to explore the impacts […]

Meeting Abstract 29.5  Wednesday, Jan. 5  Song complexity in the song sparrow (Melospiza melodia) as an indicator of constitutive immune function KUBLI, S.*; MACDOUGALL-SHACKLETON, E.A.; The University of Western Ontario, London, ON; The University of Western Ontario, London, ON skubli@uwo.ca Indicator models of sexual selection predict that ornaments advertise aspects of male quality, such as disease resistance. […]

Meeting Abstract 29.3  Wednesday, Jan. 5  Oxidative stress occurs in cardiac muscle of some Antarctic icefishes in response to an increase in temperature MUELLER, I.A.*; O’BRIEN, K.M.; University of Alaska, Fairbanks; University of Alaska, Fairbanks iamueller@alaska.edu Loss of hemoglobin (Hb) in Antarctic icefishes (family Channichthyidae, suborder Notothenioidei) is correlated with an increase in mitochondrial density, and changes […]

Meeting Abstract 29.2  Wednesday, Jan. 5  Genes underlying amino acid transport differences in echinoderms from contrasting polar and temperate environments. APPLEBAUM, S.L.*; GINSBURG, D.W.; MANAHAN, D.T.; University of Southern California; University of Southern California; University of Southern California sappleba@usc.edu Many phyla of marine invertebrates absorb dissolved organic material across their body walls from low concentrations in seawater. […]

Meeting Abstract 29.4  Wednesday, Jan. 5  Characterization of the Bacterial Properties that Impair Respiration in the Atlantic Blue Crab, Callinectes sapidus JOHNSON, N.G.*; BURNETT, L.E.; BURNETT, K.G.; College of Charleston; College of Charleston; College of Charleston ngjohnso@edisto.cofc.edu In the blue crab Callinectes sapidus, injection with the bacterial pathogen Vibrio campbellii causes a decrease in oxygen consumption. Histological […]