Meeting Abstract 42.2 Wednesday, Jan. 5 Myosin’s big radial force: axial and radial tensions are similar in contracting muscle. WILLIAMS, CD*; REGNIER, M; DANIEL, TL; Univ. Washington, Seattle; Univ. Washington, Seattle; Univ. Washington, Seattle cdave@uw.edu During muscle contraction, cross-bridges attach to thin filaments and generate axial force. At the same time, two other critical mechanical events occur: […]
year: 2011
Myosin isoform fiber type in the tail of the Virginia opossum (Didelphis virginiana)
Meeting Abstract 42.3 Wednesday, Jan. 5 Myosin isoform fiber type in the tail of the Virginia opossum (Didelphis virginiana) HAZIMIHALIS, P.J.; BUTCHER, M.T.*; Youngstown State Univ. mtbutcher@ysu.edu Myosin heavy chain (MHC) isoforms are the primary determinants of muscle fiber contractile properties and muscle performance; therefore, the distribution of slow and fast fibers (i.e. MHC fiber types) reflect […]
Is titin a winding filament in active msucle A new twist on muscle contraction
Meeting Abstract 42.1 Wednesday, Jan. 5 Is titin a “winding filament” in active msucle? A new twist on muscle contraction MONROY, JA; UYENO, TA; NISHIKAWA, KC*; Northern Arizona University Kiisa.Nishikawa@nau.edu In striated muscle, titin contributes to passive tension, sarcomere integrity, and myofibrillar assembly. Previous studies suggest that titin plays a role in active muscle, but such a […]
Force-length properties, pinnation angle and mechanical advantage of the goat medial and lateral gastrocnemius in relation to in vivo contractile function and muscle models
Meeting Abstract 42.5 Wednesday, Jan. 5 Force-length properties, pinnation angle and mechanical advantage of the goat medial and lateral gastrocnemius in relation to in vivo contractile function and muscle models. DE BOEF MIARA, M.*; LEE, S.M.; WAKELING, J.M.; BIEWENER, A.A.; Harvard University, Cambridge, MA; Simon Fraser University, Burnaby, BC; Simon Fraser University, Burnaby, BC; Harvard University, Cambridge, […]
Complex interactions between length and force in the elastic behavior of active muscle
Meeting Abstract 42.4 Wednesday, Jan. 5 Complex interactions between length and force in the elastic behavior of active muscle. GILMORE, L.A.*; MONROY, J.A.; NISHIKAWA, K.C.; Northern Arizona University; Northern Arizona University; Northern Arizona University leslie.gilmore@nau.edu Both the active force produced by a muscle and the passive force due to stretch depend on the length of the muscle. […]
Evolution by genetic interaction at loci affecting shape or allometry
Meeting Abstract 41.1 Wednesday, Jan. 5 Evolution by genetic interaction at loci affecting shape or allometry PAVLICEV, M.*; CHEVERUD, J.M.; University of Oslo, Norway; Washington University, St. Louis, MO mihaela.pavlicev@bio.uio.no Genetic basis of shape or the allometric relationships between traits resides in the distribution of genetic variance for traits, and in the genetic correlations between them. The […]
Endless pigeons most beautiful and most wonderful
Meeting Abstract 41.2 Wednesday, Jan. 5 Endless pigeons most beautiful and most wonderful MULROY, E.; RECORD, D.; GUERNSEY, M.; STRINGHAM, S.A.; ALDENHOVEN, J.T.; OSBORNE, E.J.; SHAPIRO, M.D.**; Univ. of Utah shapiro@biology.utah.edu For thousands of years, humans have selected stunning morphological, physiological, and behavioral traits in the rock pigeon. This intensive selection regime has resulted in over 350 […]
Developmental basis of novel gut morphology in frogs
Meeting Abstract 41.3 Wednesday, Jan. 5 Developmental basis of novel gut morphology in frogs BLOOM, S.K.; INFANTE, C.R.; EVERLY, A.W.; HANKEN, J.; NASCONE-YODER, N.M.*; North Carolina State University College of Veterinary Medicine; Harvard University; Harvard University; Harvard University; North Carolina State University College of Veterinary Medicine nmnascon@ncsu.edu Evolutionary adaptation frequently occurs by selection on morphological variation, yet […]
Cross validation of next-generation sequencing platforms for gene expression studies in non-model organisms
Meeting Abstract 41.4 Wednesday, Jan. 5 Cross validation of next-generation sequencing platforms for gene expression studies in non-model organisms SIEBERT, S.*; ROBINSON, M.; SMITH, S.A.; TINTORI, S.C.; HELM, R.R.; GOETZ, F.; HADDOCK, S.H.; CARTWRIGHT, P.; DUNN, C.W.; Brown University, Providence; Walter and Eliza Hall Institute of Medical Research, Melbourne; Brown University, Providence; Brown University, Providence; Brown University, […]
Critical Regulatory Domain of the Abdominal B (AbdB)-like Transcription Factor HoxA-11
Meeting Abstract 41.6 Wednesday, Jan. 5 Critical Regulatory Domain of the Abdominal B (AbdB)-like Transcription Factor HoxA-11 NNAMANI, Mauris*; MEILER, Jens; MIZOUE, Laura; WAGNER, Günter; Yale University,Yale Institute for Systems Biology, New Haven, CT ; Center for Structural Biology, Vanderbilt Univ.,Nashville,TN; Center for Structural Biology, Vanderbilt Univ.,Nashville,TN; Yale University,Yale Institute for Systems Biology, New Haven, CT mauris.nnamani@yale.edu […]
