Meeting Abstract 71.2 Sunday, Jan. 6 Differential accumulation of mycosporine-like amino acids in the purple sea urchin, Strongylocentrotus purpuratus, in situ GRAVEM, S.A.*; ADAMS, N.L.; Cal Poly State Univ. San Luis Obispo; Cal Poly State Univ. San Luis Obispo sgravem@gmail.com Microhabitat variation in mycosporine-like amino acid (MAA) concentrations was studied in marine red algae and Strongylocentrotus purpuratus […]
year: 2008
Molecular Characterization of Parthenogenetic Meiosis in Acyrthosiphon pisum
Meeting Abstract 70.1 Sunday, Jan. 6 Molecular Characterization of Parthenogenetic Meiosis in Acyrthosiphon pisum SRINIVASAN, D.G.*; DAVIS, G.K.; STERN, D.L.; Princeton University; Princeton University; Princeton University dsriniva@princeton.edu Meiosis is a highly conserved process in which a diploid genome is recombined and assorted into haploid gametes. The pea aphid Acyrthosiphon pisum exhibits a reproductive polyphenism whereby environmental signals […]
Larval Development of a Neritimorph Gastropod Identifies Derived Traits Among Feeding Gastropod Larvae
Meeting Abstract 70.4 Sunday, Jan. 6 Larval Development of a Neritimorph Gastropod Identifies Derived Traits Among Feeding Gastropod Larvae PAGE, L.R.*; LESOWAY, M.P.; University of Victoria lpage@uvic.ca Mapping of gastropod life histories onto recent phylogenetic hypotheses predicts that larval feeding (planktotrophy) is a derived trait among gastropods. Feeding larvae are present in three clades: caenogastropods, heterobranchs, and […]
Enigmatic transitory epidermis in planktonic larval development of a hoplonemertean Paranemertes peregrina and its significance in evolution of development in nemerteans (Phylum Nemertea; Lophotrochozoa)
Meeting Abstract 70.2 Sunday, Jan. 6 Enigmatic transitory epidermis in planktonic larval development of a hoplonemertean Paranemertes peregrina and its significance in evolution of development in nemerteans (Phylum Nemertea; Lophotrochozoa) MASLAKOVA, S. A.*; VON D�HREN, J.; U of Washington; Freie Universit�t Berlin maslak@u.washington.edu Nemerteans are non-segmented marine worms related to the trochophore-bearing phyla such as Mollusca and […]
Centipedes and crayfish Two extreme modes of sequential segmentation in arthropods
Meeting Abstract 70.5 Sunday, Jan. 6 Centipedes and crayfish � Two extreme modes of sequential segmentation in arthropods CHIPMAN, A.D.; The Hebrew University of Jerusalem ariel.chipman@huji.ac.il The majority of arthropods generate segments sequentially during embryogenesis, a process usually referred to as �short germ development.� This is in contrast with the well studied process in Drosophila melanogaster, where […]
Borrowing from the past Remodeling adult tissue by larval cell recruitment during Ciona heart development
Meeting Abstract 70.6 Sunday, Jan. 6 Borrowing from the past: Remodeling adult tissue by larval cell recruitment during Ciona heart development DAVIDSON, Brad*; NUNAN, Linda; University of Arizona; University of Arizona bjd18@email.arizona.edu During chordate evolution, there have been dramatic life-history shifts between direct and indirect modes of development. These shifts may facilitate the emergence of new traits. […]
Understanding of the turtle body plan from developmental perspective
Meeting Abstract 69.4 Sunday, Jan. 6 Understanding of the turtle body plan from developmental perspective NAGASHIMA, H*; KURATANI, S; Center for Developmental Biology, RIKEN, Kobe, Japan; Center for Developmental Biology, RIKEN, Kobe, Japan nagashima@cdb.riken.go.jp The skeletal morphology of turtles has provided a possible example of evolutionary novelty, in which topological relationship between the rib cage and scapula […]
Patterning the diverse dentitions of Lake Malawi cichlids
Meeting Abstract 69.2 Sunday, Jan. 6 Patterning the diverse dentitions of Lake Malawi cichlids FRASER, G. J.**; STREELMAN, J. T.*; Georgia Institute of Technology, Atlanta; Georgia Institute of Technology, Atlanta gareth.fraser@biology.gatech.edu Cichlid fishes of Lake Malawi offer a unique glimpse of rapid adaptive evolution, with hundreds of species evolving from a common ancestor in the last 500,000 […]
Modularity of the rodent mandible Integrating teeth, muscles and bone
Meeting Abstract 69.5 Sunday, Jan. 6 Modularity of the rodent mandible. Integrating teeth, muscles and bone ZELDITCH, M.L.*; WOOD, A.R.; BONETT, R.; SWIDERSKI, D.L.; U. Michigan, Ann Arbor; U. Michigan, Ann Arbor; U. Tulsa, OK; U. Michigan, Ann Arbor zelditch@umich.edu The rodent mandible is a favored model system for studies of modularity because it forms from developmental […]
Developmental evolutionary study of the hagfish embryo
Meeting Abstract 69.3 Sunday, Jan. 6 Developmental evolutionary study of the hagfish embryo OTA, K.G.*; KURATANI, S; CDB RIKEN; CDB RIKEN ota_kinya@cdb.riken.jp Although hagfishes and lampreys are clustered as a monophyletic group by recent molecular phylogenetic analyses, the phylogenetic position of hagfishes is still a matter of debate for their apparently primitive morphological features such as the […]
