Meeting Abstract 61.1  Tuesday, Jan. 6  Molecular differences between male and hermaphrodite sperm in the nematode Caenorhabditis elegans FRAIRE-ZAMORA, JJ*; CARDULLO, RA; University of California, Riverside; University of California, Riverside jfrai001@student.ucr.edu Reproductive strategies in nematode species comprise gonochoristic, hermaphroditic, and parthenogenetic forms. In C. elegans, hermaphrodites produce sperm in their last larval stage and then switch to […]

Meeting Abstract 61.3  Tuesday, Jan. 6  Does body size limit eye size in Drosophila melanogaster? MERRY, J.W.*; RUTOWSKI, R.L.; Arizona State University; Arizona State University jmerry@francis.edu We tested the hypothesis that body size constrains the evolution of eye size in insects. We subjected flies to antagonistic artificial selection on eye height and thorax length in an effort […]

Meeting Abstract 61.2  Tuesday, Jan. 6  Axes of evol: Anterior-posterior body patterning is congruent with a disordered Hox cluster in echinoderms MOOI, R.*; DAVID, B.; California Academy of Sciences; Centre National de la Recherche Scientifique, Dijon rmooi@calacademy.org Recent advances in echinoderm evo-devo include acquisition of the genome sequence for Strongylocentrotus purpuratus. The echinoid Hox cluster is disordered. […]

Meeting Abstract 60.10  Tuesday, Jan. 6  The influence of oxygen and high-energy phosphate diffusion on metabolic scaling in three species of tail-flipping crustaceans. JIMENEZ, A.G.; LOCKE, B.R.; KINSEY, S.T.*; University of North Carolina Wilmington kinseys@uncw.edu We examined the influence of intracellular diffusion of O2 and high-energy phosphate (HEP) molecules on the scaling with body mass of the […]

Meeting Abstract 60.8  Tuesday, Jan. 6  Skeletal muscle lipids in Weddell seals (Leptonychotes weddellii): Differences in age class and possible response to resource limitations TRUMBLE, S.J.*; HAWKE, T.J.; PEARSON, L.E.; KANATOUS, S.B.; Baylor University; York University; University of Alaska Anchorage; Colorado State University stephen_trumble@baylor.edu In this study, we investigated the intramuscular triglyceride (IMTG) profiles and oxidative metabolism […]

Meeting Abstract 60.1  Tuesday, Jan. 6  Scaling with body mass of mitochondrial respiration in fish white muscle. BURPEE, Jessica L*; KINSEY, Stephen T; University of North Carolina Wilmington jlb7346@uncw.edu White muscle in black sea bass (Centropristis striata) grows hypertrophically, and fiber sizes increase during development from <50 m in juveniles to >250 m in adults. This leads […]

Meeting Abstract 60.6  Tuesday, Jan. 6  Reduced cost of Na+-K+ pump activity in large muscle fibers of the lobster, Homarus americanus. JIMENEZ, A.G.*; KINSEY, S.T.; University of North Carolina Wilmington agj6818@uncw.edu Large muscle fiber size imposes constraints on muscle function while imparting no obvious advantages, making it difficult to explain why muscle fibers are often among the […]

Meeting Abstract 60.3  Tuesday, Jan. 6  Pro-hypertrophic factors present in post-prandial python serum: effects on neonatal rat cardiomyocytes. RIQUELME, C.A.*; MAGIDA, J.; SECOR, S.M.; LEINWAND, L.A.; University of Colorado, Boulder; University of Colorado, Boulder; University of Alabama, Tuscaloosa; University of Colorado, Boulder cecilia.riquelme@colorado.edu Burmese pythons are infrequent eaters and after a meal a rapid and significant increase […]

Meeting Abstract 60.5  Tuesday, Jan. 6  Myostatin Signaling and the Regulation of a Molt-Induced Atrophy in Crustacean Claw Muscle COVI, J.A.; BADER, B.A.; WASMUNDT, N.M.; CHANG, E.S.; MYKLES, D.L.*; Colorado State University; Colorado State University; Colorado State University; UC Davis Bodega Marine Lab; Colorado State University don@lamar.colostate.edu Molt-induced claw muscle atrophy is under the control of steroid […]

Meeting Abstract 60.2  Tuesday, Jan. 6  Muscle fiber length operating ranges reflect disparate functions between muscles ENG, CM*; HIGHAM, TE; BIEWENER, AA; Harvard Univ., Cambridge, MA; Clemson Univ., Clemson, SC; Harvard Univ., Cambridge, MA cmeng@fas.harvard.edu Animals move in complex environments that place constantly shifting demands on the locomotor system. To accommodate these demands, hindlimb muscles may be […]