Differential accumulation of mycosporine-like amino acids in the purple sea urchin, Strongylocentrotus purpuratus, in situ

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 […]

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 […]

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