Meeting Abstract S6-1.5 Jan. 5 Exploring the Genetics of Conspecific Sperm Precedence in Two Ground Cricket Species HOWARD, Daniel J.*; BRASWELL, W. Evan; New Mexico State University dahoward@nmsu.edu Allonemobius fasciatus and A. socius are closely related ground crickets that are reproductively isolated by conspecific sperm precedence. We have examined the genetic basis of this isolation through QTL […]
year: 2007
Expansion of sperm gene families in D melanogaster
Meeting Abstract S6-1.2 Jan. 5 Expansion of sperm gene families in D. melanogaster DORUS, S; University of Bath T.L.Karr@bath.ac.uk Although new gene creation is one crucial process in the evolution of biological novelty there remain many questions surrounding evolutionary processes immediately following gene duplication. Here, we analyze the expansion of two sperm gene families, CG17450 (a tektin-like […]
A sperm’s eye view of evolution
Meeting Abstract S6-1.1 Jan. 5 A sperm’s eye view of evolution KARR, T*; DORUS, S; GERIKE, U; University of Bath; University of Bath; University of Bath T.L.Karr@bath.ac.uk A very limited amount of knowledge exists concerning the genetic and molecular basis underlying the diversity of sperm form and function. We have identified 381 proteins of the Drosophila melanogaster […]
Total Evidence Analysis Identifies Placozoa as Basal to Extant Metazoa
Meeting Abstract S5.11 Jan. 5 Total Evidence Analysis Identifies Placozoa as Basal to Extant Metazoa SCHIERWATER, Bernd*; DESALLE, Rob; JAKOB, Wolfgang; SCHROTH, Werner; HADRYS, Heike; DELLAPORTA, Stephen; ITZ, Ecology and Evolution; Dept. of Molecular Cellular and Developmental Biology, Yale University; American Museum of Natural History; ITZ, Ecology and Evolution; ITZ, Ecology and Evolution; ITZ, Ecology and Evolution; […]
The evolutionary transition from protists to Metazoa mitochondrial genome organization and phylogenomic analyses based on nuclear and mitochondrial genes
Meeting Abstract S5.2 Jan. 5 The evolutionary transition from protists to Metazoa: mitochondrial genome organization and phylogenomic analyses based on nuclear and mitochondrial genes. LIU, Yu; STEENKAMP, Emma; DARMON, Daniel; BURGER, Gertraud; LANG, B. Franz*; 1; 2 Department of Microbiology and Plant Pathology, University of Pretoria, South Africa; 1; 1; 1 Robert Cedergren Centre for Bioinformatics and […]
The developmental basis of body plan organization in the Eumetazoa
Meeting Abstract S5.7 Jan. 5 The developmental basis of body plan organization in the Eumetazoa MARTINDALE, Mark Q.; Univ. Hawaii mqmartin@hawaii.edu Recent work is beginning to provide more confidence in our ability to understand the true phylogenetic relationship between extant animal groups. This provides opportunities to hypothesize about how morphological transitions might have occurred during early animal […]
The Origin(s) of Segmentation in Animals
Meeting Abstract S5.9 Jan. 5 The Origin(s) of Segmentation in Animals AKAM, M*; BRENA, C; CHIPMAN, A.C; ERIKSSON, J; PEEL, A; University Museum of Zoology, Cambridge; University Museum of Zoology, Cambridge; University Museum of Zoology, Cambridge; University Museum of Zoology, Cambridge; University Museum of Zoology, Cambridge m.akam@zoo.cam.ac.uk Three major animal lineages are segmented – the annelids, the […]
Rocks and Clocks Integrating Fossils and Molecules to Date Transitions in Early Animal Evolution
Meeting Abstract S5.6 Jan. 5 Rocks and Clocks: Integrating Fossils and Molecules to Date Transitions in Early Animal Evolution COLLINS, Allen/G*; CARTWRIGHT, Paulyn; NOAA; University of Kansas collinsa@si.edu Among the key transitions in early animal evolution are those that occurred near the origins of multicellularity: the sponge body plan, epithelial tissues, guts, colloblasts, cnidae, bilaterality and mesoderm. […]
Redox signaling and the transition from basal metazoans to bilaterians
Meeting Abstract S5.5 Jan. 5 Redox signaling and the transition from basal metazoans to bilaterians BLACKSTONE, N.W.; Northern Illinois University neilb@niu.edu Living things invariably consist of some kind of compartmentalized redox chemistry. Signaling pathways mediated by oxidation and reduction thus derive from the nature of life itself. The role of such redox signaling broadened with major transitions […]
Origins of Sensory and Neural Organization in Basal Metazoa
Meeting Abstract S5.3 Jan. 5 Origins of Sensory and Neural Organization in Basal Metazoa JACOBS, David K.*; NICHOLS , Scott; HARTENSTEIN, Volker; NAKANISHI, Nagayasu; YUAN, David; UCLA; UC, Berkeley; UCLA; UCLA; UCLA djacobs@ucla.edu The roots of the word animal imply muliticellular motility with inherent requirements for sensation and locomotory response. Cnidarians are traditionally viewed as the most […]
