B Number is the board number

Development and Evolution
B1 Characterization and functional assay of the promoter of the homeobox gene EmH-3 from the freshwater sponge Ephydatia muelleri
C.C. Coutinho, W.E. Muller and E. Borojevic. Univ. of Rio de Janeiro, Brazil and Gutenberg Univ. of Mainz, Germany

B2 Identification of a Pax 3/7 like gene in the marine sponge Haliclona loosanoffi
A.L. Hill and J. Konopka. Fairfield Univ, CT

B3 Homeotic genes and the mandibulate head: divergent expression patterns of labial, proboscipedia and Deformed homologues in crustaceans and insects.
A. Abzhanov and T.C. Kaufman. Indiana Univ. Bloomington, IN

B4 Isolation of the Hox cluster from the mosquito Anopheles gambiae
T.P. Powers, X. Ke, K. Dymbrowski, J. Hogan, X. Wang, F.H. Collins and T.C. Kaufman. HHMI, Indiana Univ. and Univ. of Notre Dame, IN

B5 Early evolution of Hox and ParaHox genes: evidence from the Cnidaria
J.R. Finnerty, M.Q. Martindale. Univ. of Chicago, IL, and Kewalo Marine Lab, HI

B6Novel early patterns and regional restrictions in the expression of Hox genes in the polychaete annelid Chaetopterus
S.Q. Irvine and M.Q. Martindale. Yale Univ., CT and Univ. of Hawaii, HI

B7 Characterization of the DNA sequence spanning the Hoxb-5 and Hoxb-6 region from Morone saxatilis
S.W. Avery, J.-L. Scemama and E.J. Stellwag. E. Carolina Univ. Greenville, NC.

B8 Characterization of the central region of Hox gene cluster C in Morone saxatilis
Y.A. Mohamoud, J-L. Scemama and E.J. Stellwag. E. Carolina Univ. Greenville, NC.

B9 Zebrafish Hox genes and vertebrate evolution
J.M. McClintock and V.E. Prince. Univ. of Chicago, IL.

B10 Comparison of two hoxb5 paralogs in the zebrafish
A.E.E. Bruce, V.E. Prince, R.K. Ho. Princeton Univ., NJ, Univ. of Chicago, IL.

B11 The decapentaplegic and 60A genes of the red flour beetle, Tribolium castaneum, are similar to Drosophila dpp and 60A in sequence, structure, and expression.
S. Missios, M. Pincus, A. Zahorchak, B. McKeon, G. Oshop, J. Trecki, D. Nasr and J. Doctor. Duquesne U., PA.

B12 The role of twist in the marine mud snail Ilyanassa obsoleta
S.M. Moshel-Lynch, UC Berkeley, CA, and J.R. Collier. Effie Lab, LA

B13 Characterization of pair rule gene homologs in leech
M. Hye Song and David Weisblat. UC Berkeley, CA.

B14 The leech hunchack orthologue LZF2 is expressed in epidermis and CNS and not in the segmental precursor lineages.
J. Iwasa, D. Suver, A. Sainz and R. Savage. Williams College, MA.

B15 Expression of Pair-berry and the evolution of segmentation.
G.K. Davis and N.H. Patel. Univ. of Chicago, IL.

B16 Cngsc, the hydra homologue of goosecoid, is expressed within the organizer region and participates in the patterning of the head.
M.N. Broun, S.Y. Sokol, H.R. Boda. UC Irvine, CA; Harvard Med. Sch., MA.

B17 Involvement of Rel proteins in dorsoventral patterning of Xenopus embryos
N.J. Armstrong, C. Prothmann, R.A.W. Rupp.Friedrich Miescher Lab., Germany.

B18 The role of nanos in the early development of Schistocerca americana
S. Lall, M.Z. Ludwig and N.H. Patel. Howard Hughes Med. Inst. and Univ. of Chicago, IL

B19 Expression of a nanos homolog in leech
D. Kang1, M. Pilon2 and D.A. Weisblat1. 1.UC Berkeley, CA; 2. Hosp. for Sick Children, Canada

B20 Characterization of comb-gap: a gene required for proper A/P patterning of limbs in Drosophila melanogaster.
W.J. Brooke, P.C. Svendsen-Birhanu, S.D.G. Marshall, M. Kyba, S.M. Cohen. Univ. of Calgary, Canada. EMBL, Germany.

B21 Identification of a new class of astacin metalloproteases with roles in early development.
S.W. Davis, E. Newman-Smith and W.C. Smith. UC Santa Barbara, CA

B22 Role of the forkhead gene FH1 in evolution of the ascidian anural larva.
C.L. Olsen, J. Natzle and W.R. Jeffery. UC Davis, CA and Univ. of Maryland- College Park, MD

B23 The "minimal dsRNA unit" needed for RNA in nematodes
K. Galey, J. Norman, M.K. Montgomery. Macalester Col., MN.

B24 The diversification of gastropods the the conservation of regulatory genes
S.M. Moshel-Lynch and D.R. Lindberg. UC Berkeley, CA.

B25 Identification of genes involved in mouse development using ES cell-based strategies
V.L. Browning, R.J. Munroe, J.C. Schimenti. The Jackson Laboratory, ME.

B26 A screen for recessive mutations affecting mouse development
R. Arkell, T. Marsland, M. Cadman, P. Denny and S. Brown. MRC Mammalian Genet.Unit and UK Mouse Genome Ctr., U.K.

B27 How does the anatomical site of primitive hematopoiesis change its location through evolution?
A.C. Oates, R.K. Ho. Princeton Univ., NJ.

B28 Role of the dorsal mesoderm in patterning the cell behaviors driving neurulation in Xenopus laevis
M.A. Ezin and R.E. Keller. Univ. of Virginia, VA.

B29 Variations in invasion behavior of superficial mesoderm in amphibians.
D.R. Shook, C. Majer and R.E. Keller. Univ. of Virginia, VA

B30 Integrin signaling up regulates fibronectin binding activity in mouse peri-implantation blastocysts
J. Wang, L. Mayernik, J.F. Schultz, D.R. Armant. Wayne State Univ., MI.

B31 Evolution of beta-catenin: does its function in adhesion predate its signaling function?
S. Schneider1, J. R Finnerty1 and M. Q Martindale1. 1. Univ. of Chicago, IL; Univ. of Hawaii, HI

B32 Xenopus neural crest migration is inhibited by anti-sense Xslug RNA
T.F. Carl, C. Dufton, J. Hanken and M.W. Klymkowsky. Univ. of Colorado at Boulder, CO

B33 Evolutionary genetics of Danio pigment pattern development.
D.M. Parichy1,2, and S.L. Johnson1. 1.Washington Univ. Med. Sch., MO; 2. U Texas at Austin, TX

B34 The development and evolution of crossveins and associated pigmentation patterns in the Lepidoptera and Diptera.
J.M. Marcus. Duke Univ., NC.

B35 The lens as an organizer of eye development and evolution: A view from the cave fish eye.
Y. Yamamoto and W.R. Jeffery. Pennsylvania State Univ., PA, and Univ. of Maryland, MD.

B36 Going beyond genetic programs in devleopment and evolution.
J. Wells. UC Berkeley, CA.

B37 The evolution of gravity sensing organs in the metazoa: an exploration of developmental genes responsible for georeception in non-model taxa.
R.D. Gates, C. Kashefi, V.A. Palchevskiy, C. DellaCorte, S.E. Lee and D.K. Jacobs. UCLA, CA

Neural Development
B76 C. elegans O/E (CeO/E) transcription factor is required for axon guidance and chemosensory function
B.C. Prasad , G. Seydoux , R.R. Reed . HHMI, Johns Hopkins Univ., MD.

B77 The C. elegans type XVIII collagen/endostatin homologue is involved in cell migrations and axon guidance
B.D. Ackley anbd J.M. Kramer. Northwestern Univ. Med. Sch., IL

B78 A target-derived stop-signal for an identified motor neuron is not directly regulated by local innervation.
A. Crowley, P.Clark and J.Jellies. Western Michigan Univ., MI.

B79 Functional analysis of distinct regions of the laminin heterotrimer: the role of laminin during cell migrations, neuronal outgrowth, and guidance during development
J. Bonner, T.P. O'Connor. Univ. of British Columbia, Canada

B80 Drosophila gliolectin guides the normal development of the embryonic nervous system
M. Sharrow, L. Andrejeva and M. Tiemeyer. Yale Univ. Sch. of Med., CT.

B81 Regulation of axon targeting and synaptic connectivity by the POU domain transcription factor, ACJ6.
S.J. Certel, P. Clyne, J. Carlson and W.A. Johnson. Univ. of Iowa, Yale University.

B82 Genesis of ectopic neurons in zebrafish "skirt" mutants
D. Jiang, C-H Kim, M. Kacergis and AB. Chitnis. NICHD/NIH, MD.

B83 Development and death of zebrafish Rohon-Beard spinal sensory neurons.
R. Reyes and J.S. Eisen. Univ. of Oregon, OR.

B84 Zebrafish narrowminded is involved in the specification of neural crest and primary sensory neurons
K.B. Artinger, A.B. Chitnis, W. Driever, M.Mercola. Harvard Med. Sch., MA; NIH/NICHD, MD; Univ. of Freiburg, Germany.

B85 Genetic analysis of the lateral line sensory system in the zebrafish (Danio rerio).
T. Piotrowski, C. Nusslein-Volhard and I.B. Dawid. NIH, NICHD, LMG, MD; and MPI fur Entwicklungsbiologie, Germany

B86 The twister, diwanka and unplugged genes establish motor axon pathways in the zebrafish embryo
M. Granato, J. Zeller, S. Malayaman, J. Zhang, S. Zhang. Univ. of Pennsylvania, PA.

B87 Use of promoter/reporter constructs in transgenic zebrafish lines to assess signals controlling axon growth
A.J. Udvadia, J.H.P. Skene. Duke Univ., NC.

B88 Promotion of cell adhesion by OTX1 expression in the zebrafish embryo.
G. Bellipanni, T. Murakami and E.S. Weinberg. Univ. of Pennsylvania. PA.

B89 The role of IGF in the regulation of rod progenitor cell proliferation in the retina of teleosts
C.A. Zygar and R.D. Fernald. Stanford Univ., CA,.

B90 The identification and cloning of tumorhead. A novel gene that is involved in neural differentiation.
C.F. Wu, H. Nakamura, A.P. Chan, T. Cao and L.D. Etkin. UT M.D. Anderson Cancer Center, TX

B91 Cloning and developmental characterization of a novel GABA transporter and other neurotransmitter receptors and transporters in Xenopus laevis
K. Hoke and M.S. Saha. Col. of William and Mary, VA.

B92 Neurulation in Xenopus is driven by conservative medio-lateral and radical radial cell intercalation
A.F. Edlund and R.E. Keller. Univ. of Virginia, VA.

B93 Remodeling the dorsal tube after neural fold fusion in Xenopus laevis
L.A. Davidson and R. Keller. Univ. of Virginia, VA.

B94 Determination and plasticity of the neural axes during early Xenopus embryogenesis
C. Vanderspurt, A. Purdy, R. Jackson and M.S. Saha. Col. of William and Mary, VA.

B95 Notch activation influences neural plate formation by multiple mechanisms
C-H. Kim, L. Kodjabachian and A.B. Chitnis. NICHD/NIH, MD.

B96 Xenopus homologs of the Ebf family involved in neuronal specification and differentiation
O.Pozzoli, A.Bosetti, M.L Vetter, L.Croci and G.Consalez. HSR, Italy and Univ. of Utah, UT.

B97 A new approach defines the timing of neural induction and maps early organizer activity in the chick
D.K. Darnell, M.R. Stark and G.C. Schoenwolf. Lake Forest Col., Lake Forest, IL and Univ. of Utah Sch. of Med., UT.

B98 A role for hypoblast in patterning the chick forebrain
A.C. Foley, C.D. Stern. Columbia Univ., NY.

B99 Lmx1b regulates Wnt-1 expression in the developing mesencephalon
R.D. Riddle, K.A. Adams, J. Golden and J. Maida. Univ. of Pennsylvania, PA.

B100 Segmental patterning of the peripheral nervous system.
C.E. Krull1, J. Eberhart1, J. McLennan2, S.A. Koblar2, D.P. Cerretti3 and E.B. Pasquale4. 1Univ. of Missouri-Columbia, MO; 2Univ. of Adelaide, Australia; 3Immunex, WA and 4Burnham Inst., CA.

B101 Expression pattern of the bHLH ME1 gene suggests an important role during the early steps of neurogenesis.
M. Uttenbogaard and A. Chiaramello. George Washington Univ. Med. Ctr., DC

B102 Neuron identity and axon pathfinding are regulated by mouse Pax6 and Dlx family of genes.
G.L. Andrews , K. Yun , J.L.R. Rubenstein and G.S. Mastick . Univ. of Nevada, NV and UCSF, CA.

B103 An early block to telencephalic development in Flat-top mutant mice.
K. Hentges and A. Peterson. Duke Univ. Med. Ctr., NC

B104 Dorso-ventral patterning in the telencephalon: opposing roles for Gsh2 and Pax6
H. Toresson, S.S. Potter and K. Campbell. Lund Univ., Sweden; Children's Hosp. Med. Ctr., OH.

B105 Fine mapping of the murine cerebellar deficient folia mutation
S.L. Ackerman, C. Longo, C. Park. The Jackson Lab., ME.

B106 The role of mouse Frizzled-9 (mfz9) in regulating spinal cord differentiation
T.J. Van Raay, M.L. Vetter and M.S. Rao. Univ. of Utah, UT.

B107 BMPs regulate neuronal diversity in sensory ganglia
X. Ai and A.K. Hall. Case Western Reserve Univ. Sch. Med., OH.

B108 Functional interaction between RA and hedgehog genes in early neurogenesis.
A.E. Carrasco, P. Franco, A. Paganelli and S. Lopez. Univ. of Buenos Aires, Sch. of Med., Argentina

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