PARICHY, D.M.; University of Washington: Evolutionary genetics of danio pigment pattern development The diverse pigment patterns of Danio fishes provide an outstanding opportunity to dissect the changes in developmental genetic mechanisms underlying evolutionary transformations of adult form. Whereas zebrafish exhibit horizontal stripes, closely related danios have different numbers of stripes, uniform patterns, vertical bars and […]
sessions: S2-2
Dorsoventral Patterning of Facial Bone Morphology
KIMMEL, CHARLES B.*; MCGUIGAN, KATRINA; ULLMANN, BONNIE; CURREY, MARK; CRESKO, WILLIAM A.; University of Oregon; University of Oregon; University of Oregon; University of Oregon; University of Oregon: Dorsoventral Patterning of Facial Bone Morphology Evolution within the Endothelin1 (Edn1) regulatory pathway might underlie key features of craniofacial evolution. Bone morphology within the opercle-branchiostegal ray series of […]
Craniofacial development and evolution in gnathostomes
SCHILLING, TF; Univ. of California, Irvine: Craniofacial development and evolution in gnathostomes The skull and jaws were key innovations in vertebrate evolution. Much of this skeleton has a unique embryonic origin from cranial neural crest cells, unlike the more posterior axial and appendicular skeletons which are derived from mesoderm. How does the embryonic origin of […]
Comparative studies of tooth development in teleost fishes
STOCK, D.W.; Univ. of Colorado, Boulder: Comparative studies of tooth development in teleost fishes My laboratory uses the zebrafish (Ostariophysi: Cypriniformes) as part of a three taxon statement for investigating the developmental genetic basis of macroevolution in the vertebrate dentition. Comparisons of gene expression, regulation and function are carried out with an additional ostariophysan, the […]
Trunk neural crest cells contribute to plastron and nuchal bones in turtles
Meeting Abstract S2-2.4 Jan. 4 Trunk neural crest cells contribute to plastron and nuchal bones in turtles GILBERT, S.F.*; BENDER, G.; YIN, M.; CEBRA-THOMAS, J. A. ; Swarthmore College; Swarthmore College; Swarthmore College; Millersville University sgilber1@swarthmore.edu The plastron of the hard-shelled turtle Trachemys scripta contains nine bones. These bones develop by intramembranous ossification within the dermis. The […]
The Origin of Vertebrate Fin Development
Meeting Abstract S2-2.1 Jan. 4 The Origin of Vertebrate Fin Development FREITAS, R; ZHANG, G; COHN, MJ*; Department of Zoology and The University of Florida Genetics Institute, Gainesville, USA; Department of Zoology and The University of Florida Genetics Institute, Gainesville, USA; Department of Zoology and The University of Florida Genetics Institute, Gainesville, USA cohn@zoo.ufl.edu The origin of […]
On the origins of morphological novelty and its diverse developmental bases the case of teeth
Meeting Abstract S2-2.3 Jan. 4 On the origins of morphological novelty and its diverse developmental bases: the case of teeth SALAZAR-CIUDAD, I; University of Helsinki isaac.salazar@helsinki.fi Novelties have been repeatedly claimed to be an unresolved problem in evolutionary theory. Several definitions of novelty exist but most emphasize that novelties imply qualitative changes on the phenotype and not […]
Novelties interactions between genetics, development and selection
Meeting Abstract S2-2.5 Jan. 4 Novelties: interactions between genetics, development and selection. GALIS, F.*; METZ, J.A.J.; Leiden University; Leiden University f.galis@biology.leidenuniv.nl Evolutionary changes involve changes at the genotypic and phenotypic level. Changes at the genetic level lead to developmental changes at the phenotypic level and these developmental changes lead to changes in the adult phenotype. Selection acts […]
A cellular molecular clock is ticking during proximo-distal limb outgrowth
Meeting Abstract S2-2.2 Jan. 4 A cellular molecular clock is ticking during proximo-distal limb outgrowth PASCOAL, Susana*; CARVALHO, Cla�dia; RODRIGUEZ-LE�N, Joaqu�n; DELPHINI, Marie Claire ; DUPREZ, Delphine; THORSTEINSD�TTIR, S�lveig ; PALMEIRIM, Isabel; Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho; Instituto Gulbenkian de Ci�ncia; Instituto Gulbenkian de Ci�ncia; CNRS, Universit� Pierre […]
The formation of the pharyngeal arches
Meeting Abstract S2-2.3 Thursday, Jan. 3 The formation of the pharyngeal arches GRAHAM, A.; King’s College London, UK anthony.graham@kcl.ac.uk A conserved feature of all vertebrate embryos is the presence of a series of bulges on the lateral surface of the head, the pharyngeal arches. These structures constitute an iterated series, with each arch forming a similar set […]
