SILVER, M.R.*; SOWER, S.A.; Univ. of New Hampshire: The Lamprey Lineage: A Phylogenetic Perspective Lamprey are members of the oldest class of living vertebrates, the agnathans, which diverged from the main line of vertebrate evolution approximately 500 million years ago. Their divergence is believed to have occurred between two proposed early genome duplications, making the […]

PONUGOTI, B.; PAPASANI, M.R.; LAYMAN, J.A.; GENSURE, R; JUPPNER, H; RUBIN, D.A.*; Illinois State University, Normal; Mass. General Hospital & Harvard University, Boston: Molecular isolation and evolution of teleost parathyroid hormones (PTH), PTH-related peptides (PTHrP) and tuberoinfundibular peptides of 39 residues (TIP39). Since the isolation of human and bovine PTHrP, it has been assumed that […]

LONDRAVILLE, RL; KINTER, M; University of Akron; Lerner Research Institute, Cleveland Clinic Foundation: Immunopurification of anti-leptin reactive peptide from brain of green sunfish, Lepomis cyanellus We have isolated and sequenced peptides from fish brain that putatively align with mammalian leptins. Leptin is a small (16 kDa) protein hormone that influences fat storage, metabolic rate, onset […]

LI, S.; WAGNER, C. A.; FEI, H.; FRIESEN, J. A.; BORST, D. W.; Illinois State University, Normal: HMG-CoA reductase activity in the mandibular organ of the lobster, Homarus americanus 3-hydroxy-3-methylglutaryl-coenzyme A reductase (HMGR) is the rate-limiting step in vertebrate isoprenoid synthesis. Since the lobster mandibular organ (MO) produces high levels of the sesquiterpene methyl farnesoate […]

SHIMIZU, M.*; HARA, A.; DICKHOFF, W.W.; Nat. Mar. Fish. Ser. and Univ. of Washington, Seattle; Hokkaido Univ., Hakodate, Japan; Nat. Mar. Fish. Ser. and Univ. of Washington, Seattle: Development of a radioimmunoassay for salmon 41-kDa insulin-like growth factor binding protein Insulin-like growth factor binding proteins (IGFBPs) are important modulators of IGF actions controlling IGF availability […]

AMEMIYA, Y*; YOUSON, J.H.; Univ. of Toronto at scarborough, Toronto, Canada; Univ. of Toronto at scarborough, Toronto, Canada: DIVERSITY OF THE STANNIOCALCIN MOLECULE Stanniocalcin (STC) is a homodimeric glycoprotein that was initially recognized as a product of the corpuscles of Stannius (CS) located within the kidneys of the holostean and teleostean fishes. It was later […]

HUSSAIN, Sofia/M; LIVINGSTON, Brian/T; Univ of South Florida; Univ of South Florida: Variation within repetitive coding sequences between closely related species and within populations Repetitive sequences often undergo concerted evolution, which can lead to both homogenization of the repeat sequences and variation in the number of repeat units. Within a given species, the number of […]

O’DONNELL, Brigid; University of Connecticut, Storrs: The development and evolution of abdominal gills in mayflies Insects have highly diversified appendages, including mouthparts, antennae, wings and legs; this diversification no doubt played a role in the evolutionary success of the insects. Mayflies have highly diversified abdominal gills as aquatic nymphs, exhibiting the greatest variation in abdominal […]

FOLTZ, D.W.*; HRINCEVICH, A.W.; ROCHA-OLIVARES, A.; Louisiana State University, Baton Rouge; Louisiana State University, Baton Rouge; CICESE, Ensenada, Mexico: Substitution Patterns for Mitochondrial Genes Vary with Mode of Reproduction in Marine Invertebrate Species Under a nearly-neutral model in which most amino acid substitutions are slightly deleterious, variation in life history traits among closely-related species can […]

KAPPNER, I*; BIELER, R; Field Museum of Natural History, Chicago; Field Museum of Natural History, Chicago: Phylogeny of the nominal subfamily Venerinae (Bivalvia: Veneridae) as inferred from morphology and molecules. Phylogeny and systematics of the diverse, commercially important, and cosmopolitan marine bivalve subfamily Venerinae (Heterodonta: Veneridae) remain poorly understood. The group currently comprises nine extant […]