daphnia

Summary

Summary: A diverse genus of minute freshwater CRUSTACEA, of the suborder CLADOCERA. They are a major food source for both young and adult freshwater fish.

Top Publications

  1. pmc The ecoresponsive genome of Daphnia pulex
    John K Colbourne
    Center for Genomics and Bioinformatics, Indiana University, 915 East Third Street, Bloomington, IN 47405, USA
    Science 331:555-61. 2011
  2. pmc Extensive, recent intron gains in Daphnia populations
    Wenli Li
    Biology Department, Indiana University, Bloomington, IN 47405, USA
    Science 326:1260-2. 2009
  3. ncbi The effects of multiple infections on the expression and evolution of virulence in a Daphnia-endoparasite system
    Frida Ben-Ami
    Zoologisches Institut, Evolutionsbiologie, Universitat Basel, Vesalgasse 1, CH 4051 Basel, Switzerland
    Evolution 62:1700-11. 2008
  4. ncbi Toxicity of nanosized and bulk ZnO, CuO and TiO2 to bacteria Vibrio fischeri and crustaceans Daphnia magna and Thamnocephalus platyurus
    Margit Heinlaan
    National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, Tallinn 12618, Estonia
    Chemosphere 71:1308-16. 2008
  5. pmc Environmental sex determination in the branchiopod crustacean Daphnia magna: deep conservation of a Doublesex gene in the sex-determining pathway
    Yasuhiko Kato
    Department of Biotechnology, Graduate School of Engineering, Osaka University, Osaka, Japan
    PLoS Genet 7:e1001345. 2011
  6. pmc Genome-wide analysis of tandem repeats in Daphnia pulex--a comparative approach
    Christoph Mayer
    Department of Animal Ecology, Evolution and Biodiversity, Ruhr University Bochum, Bochum, Germany
    BMC Genomics 11:277. 2010
  7. pmc Biological surface coating and molting inhibition as mechanisms of TiO2 nanoparticle toxicity in Daphnia magna
    André Dabrunz
    Institute for Environmental Sciences, University of Koblenz Landau, Landau, Germany
    PLoS ONE 6:e20112. 2011
  8. pmc The ABC transporter gene family of Daphnia pulex
    Armin Sturm
    Institute of Aquaculture, University of Stirling, Stirling, UK
    BMC Genomics 10:170. 2009
  9. ncbi Natural selection for grazer resistance to toxic cyanobacteria: evolution of phenotypic plasticity?
    N G Hairston
    Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, New York 14853, USA
    Evolution 55:2203-14. 2001
  10. ncbi Cloning of the unculturable parasite Pasteuria ramosa and its Daphnia host reveals extreme genotype-genotype interactions
    Pepijn Luijckx
    Institut of Zoology, Evolutionsbiologie, University of Basel, Basel, Switzerland
    Ecol Lett 14:125-31. 2011

Research Grants

  1. Expression and evolution of chemoreceptor genes in the model organism Daphnia
    DINORA CAROLINA PENALVA ARANA; Fiscal Year: 2010
  2. Characterization and genetic analysis of aging in Daphnia
    Jeffry L Dudycha; Fiscal Year: 2013
  3. Population Genomics of Daphnia pulex
    MICHAEL R LYNCH; Fiscal Year: 2013
  4. Effects of environmental contamination on gene copy number variation: Molecular b
    Joseph Shaw; Fiscal Year: 2013
  5. Daphnia Functional Genomics Resource
    MICHAEL EUGENE PFRENDER; Fiscal Year: 2010
  6. Daphnia DNA Microarrays
    Owen Hughes; Fiscal Year: 2002
  7. Fathead minnow DNA microarrays
    Owen Hughes; Fiscal Year: 2002
  8. MASS SPECTRAL SEQUENCING OF CARBOHYDRATES
    Vernon Reinhold; Fiscal Year: 2009
  9. NEURAL CONTROL OF SENSORY ACQUISITION
    Mark Nelson; Fiscal Year: 2004
  10. Induction of breast cancer in MMTVneu mice
    William Baldwin; Fiscal Year: 2002

Detail Information

Publications342 found, 100 shown here

  1. pmc The ecoresponsive genome of Daphnia pulex
    John K Colbourne
    Center for Genomics and Bioinformatics, Indiana University, 915 East Third Street, Bloomington, IN 47405, USA
    Science 331:555-61. 2011
    We describe the draft genome of the microcrustacean Daphnia pulex, which is only 200 megabases and contains at least 30,907 genes...
  2. pmc Extensive, recent intron gains in Daphnia populations
    Wenli Li
    Biology Department, Indiana University, Bloomington, IN 47405, USA
    Science 326:1260-2. 2009
    ..approach that detected 24 discordant intron/exon boundaries between the whole-genome sequences of two Daphnia pulex isolates. Sequencing of presence/absence loci across a collection of D...
  3. ncbi The effects of multiple infections on the expression and evolution of virulence in a Daphnia-endoparasite system
    Frida Ben-Ami
    Zoologisches Institut, Evolutionsbiologie, Universitat Basel, Vesalgasse 1, CH 4051 Basel, Switzerland
    Evolution 62:1700-11. 2008
    ..we examined the outcome of mixed-isolate infections in individual hosts, using a single clone of the waterflea Daphnia magna and three isolates of its semelparous endoparasite Pasteuria ramosa...
  4. ncbi Toxicity of nanosized and bulk ZnO, CuO and TiO2 to bacteria Vibrio fischeri and crustaceans Daphnia magna and Thamnocephalus platyurus
    Margit Heinlaan
    National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, Tallinn 12618, Estonia
    Chemosphere 71:1308-16. 2008
    ..nanoparticles of ZnO, TiO2 and CuO is increasing, their (eco)toxicity to bacteria Vibrio fischeri and crustaceans Daphnia magna and Thamnocephalus platyurus was studied with a special emphasis on product formulations (nano or bulk ..
  5. pmc Environmental sex determination in the branchiopod crustacean Daphnia magna: deep conservation of a Doublesex gene in the sex-determining pathway
    Yasuhiko Kato
    Department of Biotechnology, Graduate School of Engineering, Osaka University, Osaka, Japan
    PLoS Genet 7:e1001345. 2011
    ..Here we report the identification of two Dsx genes from Daphnia magna, a freshwater branchiopod crustacean that parthenogenetically produces males in response to environmental ..
  6. pmc Genome-wide analysis of tandem repeats in Daphnia pulex--a comparative approach
    Christoph Mayer
    Department of Animal Ecology, Evolution and Biodiversity, Ruhr University Bochum, Bochum, Germany
    BMC Genomics 11:277. 2010
    ..In this study we analysed the TR characteristics in the genomes of Daphnia pulex and 11 other eukaryotic species...
  7. pmc Biological surface coating and molting inhibition as mechanisms of TiO2 nanoparticle toxicity in Daphnia magna
    André Dabrunz
    Institute for Environmental Sciences, University of Koblenz Landau, Landau, Germany
    PLoS ONE 6:e20112. 2011
    ..that suspensions of nanosized (∼100 nm initial mean diameter) titanium dioxide (nTiO(2)) led to toxicity in Daphnia magna at nominal concentrations of 3.8 (72-h EC(50)) and 0.73 mg/L (96-h EC(50))...
  8. pmc The ABC transporter gene family of Daphnia pulex
    Armin Sturm
    Institute of Aquaculture, University of Stirling, Stirling, UK
    BMC Genomics 10:170. 2009
    ..We report here a genome-wide survey of ABC proteins of Daphnia pulex, providing for the first time information on ABC proteins in crustacea, a primarily aquatic arthropod ..
  9. ncbi Natural selection for grazer resistance to toxic cyanobacteria: evolution of phenotypic plasticity?
    N G Hairston
    Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, New York 14853, USA
    Evolution 55:2203-14. 2001
    We studied the selection response of the freshwater grazing zooplankter, Daphnia galeata, to increased abundance of cyanobacteria in its environment. Cyanobacteria are a poor-quality and often toxic food. Distinct genotypes of D...
  10. ncbi Cloning of the unculturable parasite Pasteuria ramosa and its Daphnia host reveals extreme genotype-genotype interactions
    Pepijn Luijckx
    Institut of Zoology, Evolutionsbiologie, University of Basel, Basel, Switzerland
    Ecol Lett 14:125-31. 2011
    ..We obtained the first clones of the unculturable bacterium Pasteuria ramosa, a parasite of Daphnia magna...
  11. ncbi Importance of surface coatings and soluble silver in silver nanoparticles toxicity to Daphnia magna
    Chun Mei Zhao
    Division of Life Science, The Hong Kong University of Science and Technology HKUST, Clear Water Bay, Kowloon, Hong Kong
    Nanotoxicology 6:361-70. 2012
    ..as AgNPs-L, AgNPs-P and AgNPs-S, respectively) on the acute toxicity of AgNPs to a model freshwater cladoceran Daphnia magna...
  12. pmc Cyanobacterial protease inhibitor microviridin J causes a lethal molting disruption in Daphnia pulicaria
    Thomas Rohrlack
    Freshwater Biological Laboratory, University of Copenhagen, Hillerød, Denmark
    Appl Environ Microbiol 70:5047-50. 2004
    Laboratory experiments identified microviridin J as the source of a fatal molting disruption in Daphnia species organisms feeding on Microcystis cells...
  13. ncbi Inducible tolerance to dietary protease inhibitors in Daphnia magna
    Eric von Elert
    Zoological Institute, Cologne Biocenter, University of Cologne, Koln, Germany
    J Exp Biol 215:2051-9. 2012
    b>Daphnia has been shown to acquire tolerance to cyanobacterial toxins within an animals' lifetime and to transfer this tolerance to the next generation...
  14. ncbi Daphnia revisited: local stability and bifurcation theory for physiologically structured population models explained by way of an example
    Odo Diekmann
    Department of Mathematics, University of Utrecht, P O Box 80010, 3508 TA, Utrecht, The Netherlands
    J Math Biol 61:277-318. 2010
    ..equation for a fairly general class of population models, including those based on the Kooijman-Metz Daphnia model (Kooijman and Metz in Ecotox Env Saf 8:254-274, 1984; de Roos et al...
  15. pmc Population-genomic insights into the evolutionary origin and fate of obligately asexual Daphnia pulex
    Abraham E Tucker
    Department of Biology, Indiana University, Bloomington, IN 47405
    Proc Natl Acad Sci U S A 110:15740-5. 2013
    ..Whole-genome analysis of 11 sexual and 11 asexual genotypes of Daphnia pulex indicates that current asexual lineages are in fact very young, exhibit no signs of purifying selection ..
  16. ncbi Abortive meiosis in the oogenesis of parthenogenetic Daphnia pulex
    Chizue Hiruta
    Department of Natural History Sciences, Graduate School of Science, Hokkaido University, Kita 10 Nishi 8, Kita ku, Sapporo, Hokkaido 060 0810, Japan
    Chromosome Res 18:833-40. 2010
    ..was to precisely reveal the process and mechanism of parthenogenetic oogenesis and maintenance of diploidy in Daphnia pulex through histology, karyology, and immunohistochemistry...
  17. ncbi Stoichiometry in an ecological context: testing for links between Daphnia P-content, growth rate and habitat preference
    William R DeMott
    Department of Biology, Indiana Purdue University, Fort Wayne, IN 46805, USA
    Oecologia 142:20-7. 2005
    We used laboratory experiments with ten Daphnia taxa to test for links between Daphnia P-content, growth rate and habitat preference...
  18. pmc Evolutionary factors affecting Lactate dehydrogenase A and B variation in the Daphnia pulex species complex
    Teresa J Crease
    Department of Integrative Biology, University of Guelph, Guelph, Ontario N1G 2W1, Canada
    BMC Evol Biol 11:212. 2011
    ..Two closely related Daphnia species can be distinguished by their electrophoretic Ldh genotype and habitat...
  19. ncbi The Dscam homologue of the crustacean Daphnia is diversified by alternative splicing like in insects
    Daniela Brites
    Zoologisches Institut, Evolutionsbiologie, Universitat Basel, Vesalgasse 1, Switzerland
    Mol Biol Evol 25:1429-39. 2008
    ..We describe structural, expression, and evolutionary aspects of a Dscam homolog in 2 species of the crustacean Daphnia. The Dscam of Daphnia generates up to 13,000 different transcripts by the alternative splicing of variable exons...
  20. ncbi Toxicity and bioaccumulation of TiO2 nanoparticle aggregates in Daphnia magna
    Xiaoshan Zhu
    Department of Civil, Environmental, and Sustainable Engineering, Arizona State University, USA
    Chemosphere 78:209-15. 2010
    ..including modified acute (72h) and chronic (21d) toxicity tests as well as nTiO(2) accumulation analysis using Daphnia magna as a model organism...
  21. pmc The chemoreceptor genes of the waterflea Daphnia pulex: many Grs but no Ors
    D Carolina Peñalva-Arana
    Department of Biology, Indiana University, Bloomington, IN 47405, USA
    BMC Evol Biol 9:79. 2009
    ..The keystone species Daphnia pulex, a well known crustacean, is the first aquatic invertebrate to have its genome sequenced...
  22. ncbi Analyzing effects of pesticides on invertebrate communities in streams
    Matthias Liess
    UFZ Centre for Environmental Research, Permoserstrasse 15, D 04318 Leipzig, Germany
    Environ Toxicol Chem 24:954-65. 2005
    ..showed that measured pesticide concentrations of 1:10 of the acute 48-h median lethal concentration (LC50) of Daphnia magna led to a short- and long-term reduction of abundance and number of SPEAR and a corresponding increase in ..
  23. ncbi The evolution of virulence when parasites cause host castration and gigantism
    Dieter Ebert
    Universitat Basel, Zoologisches Institut, Vesalgasse 1, 4051 Basel, Switzerland
    Am Nat 164:S19-32. 2004
    ..of experiments to understand the evolution of virulence of a castrating bacterium in the planktonic crustacean Daphnia magna. By manipulating food levels during the infection of D...
  24. pmc Resolving the infection process reveals striking differences in the contribution of environment, genetics and phylogeny to host-parasite interactions
    David Duneau
    University of Basel, Zoological Institute, Vesalgasse 1, Basel, Switzerland
    BMC Biol 9:11. 2011
    ..We designed a new method using the Daphnia magna - Pasteuria ramosa system, one of the rare examples where coevolution has been documented, in order to ..
  25. ncbi Toxicity and bioaccumulation of xenobiotic organic compounds in the presence of aqueous suspensions of aggregates of nano-C(60)
    A Baun
    Department of Environmental Engineering, Technical University of Denmark, Building 113, DK 2800 Kgs Lyngby, Denmark
    Aquat Toxicol 86:379-87. 2008
    ..systems was studied in a series of toxicity tests with algae (Pseudokirchneriella subcapitata) and crustaceans (Daphnia magna)...
  26. ncbi Effects of particle composition and species on toxicity of metallic nanomaterials in aquatic organisms
    Robert J Griffitt
    Center for Environmental and Human Toxicology, University of Florida, Gainesville, Florida 32911, USA
    Environ Toxicol Chem 27:1972-8. 2008
    ..in all organisms tested, with 48-h median lethal concentrations as low as 40 and 60 microg/L, respectively, in Daphnia pulex adults, whereas titanium dioxide did not cause toxicity in any of the tests...
  27. pmc Role of microcystins in poisoning and food ingestion inhibition of Daphnia galeata caused by the cyanobacterium Microcystis aeruginosa
    T Rohrlack
    Research Group Ecology, Department of Biology, Humboldt University, D 10099 Berlin, Germany
    Appl Environ Microbiol 65:737-9. 1999
    The effects of microcystins on Daphnia galeata, a typical filter-feeding grazer in eutrophic lakes, were investigated...
  28. ncbi The effect of transposon Pokey insertions on sequence variation in the 28S rRNA gene of Daphnia pulex
    Shiona K Glass
    Department of Integrative Biology, University of Guelph, Guelph, ON N1G2W1 Canada
    Genome 51:988-1000. 2008
    ..site in genes with and without insertions from 10 obligately and 10 cyclically parthenogenetic isolates of Daphnia pulex...
  29. ncbi Stress signaling: coregulation of hemoglobin and male sex determination through a terpenoid signaling pathway in a crustacean
    Cynthia V Rider
    Department of Environmental and Molecular Toxicology, North Carolina State University, Raleigh, NC 27695 7633, USA
    J Exp Biol 208:15-23. 2005
    ..In the present study, we demonstrate that two responses to environmental stress signaling in the crustacean Daphnia magna--hemoglobin accumulation and male offspring production--are co-elevated by the crustacean terpenoid hormone ..
  30. ncbi Small-amplitude cycles emerge from stage-structured interactions in Daphnia-algal systems
    Edward McCauley
    Ecology and Evolution Group, Department of Biological Sciences, University of Calgary, Calgary, Alberta T2N 1N4, Canada
    Nature 455:1240-3. 2008
    ..These theoretical predictions may explain previous empirical results on coexisting attractors found in Daphnia-algal systems...
  31. ncbi Intraspecific competition delays recovery of population structure
    Matthias Liess
    UFZ Helmholtz Centre for Environmental Research, Department of System Ecotoxicology, Permoserstrasse 15, D 04318 Leipzig, Germany
    Aquat Toxicol 97:15-22. 2010
    ..To test these hypotheses we exposed populations of Daphnia magna to a pulse of the pyrethroid Fenvalerate...
  32. pmc Annotation, phylogenetics, and expression of the nuclear receptors in Daphnia pulex
    Susanne A Thomson
    Department of Environmental and Molecular Toxicology, North Carolina State University, Raleigh, North Carolina, USA
    BMC Genomics 10:500. 2009
    ..The aim of this study was to identify putative nuclear receptors from the first assembled genome of a crustacean Daphnia pulex http://wFleaBase.org...
  33. ncbi Influence of multigeneration acclimation to copper on tolerance, energy reserves, and homeostasis of Daphnia magna straus
    Bart T A Bossuyt
    Laboratory of Environmental Toxicology and Aquatic Ecology, Ghent University, J Plateaustraat 22, B 9000 Ghent, Belgium
    Environ Toxicol Chem 23:2029-37. 2004
    A multigeneration acclimation experiment was performed with Daphnia magna exposed to copper to assess possible changes in tolerance and to establish the optimal concentration range (OCEE) of this species...
  34. ncbi Morphological changes in Daphnia galeata induced by a crustacean terpenoid hormone and its analog
    Shigeto Oda
    National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan
    Environ Toxicol Chem 30:232-8. 2011
    ..In the present study, morphological changes known as antipredatory responses in a cladoceran Daphnia galeata in response to exposure to MF and a juvenile hormone-mimicking pesticide, fenoxycarb, were investigated...
  35. ncbi Temperature-dependent effects of cadmium on Daphnia magna: accumulation versus sensitivity
    Evelyn H W Heugens
    Department of Aquatic Ecology and Ecotoxicology, Faculty of Science, University of Amsterdam, P O Box 94084, 1090 GB Amsterdam, The Netherlands
    Environ Sci Technol 37:2145-51. 2003
    ..Therefore, the aim of this study was to analyze the effects of temperature on cadmium toxicity to the waterflea Daphnia magna and to address possible processes responsible for temperature-dependent toxicity...
  36. ncbi The missing biomarker link: relationships between effects on the cellular energy allocation biomarker of toxicant-stressed Daphnia magna and corresponding population characteristics
    Wim M De Coen
    Laboratory for Ecophysiology and Biochemistry, University of Antwerp, Groenenborgerlaan 171, B 2020 Antwerp, Belgium
    Environ Toxicol Chem 22:1632-41. 2003
    ..The CEA methodology was fully explored by using neonates of Daphnia magna exposed for 96 h to six model toxicants (CdCl2, K2Cr2O7, tributyltin chloride, linear alkylbenzene sulfonic ..
  37. pmc A survey of well conserved families of C2H2 zinc-finger genes in Daphnia
    Arun Seetharam
    Department of Biology, Indiana State University, Terre Haute, IN 47809, USA
    BMC Genomics 11:276. 2010
    ..e. worms, flies, and humans). Here we extend that analysis to include a second arthropod genome from the crustacean, Daphnia pulex.
  38. ncbi Avoidance of copper contamination by field populations of Daphnia longispina
    Isabel Lopes
    Instituto do Ambiente e Vida, Departamento de Zoologia da Universidade de Coimbra, Largo Marques de Pombal, 3004 517 Coimbra, Portugal
    Environ Toxicol Chem 23:1702-8. 2004
    ..Twelve cloned lineages of the cladoceran Daphnia longispina, collected from two field populations, were selected according to their lethal sensitivity to copper ..
  39. ncbi Toxicity biomarker expression in daphnids exposed to manufactured nanoparticles: changes in toxicity with functionalization
    Rebecca Klaper
    Great Lakes WATER Institute, University of Wisconsin Milwaukee, Milwaukee, WI 53204, USA
    Environ Pollut 157:1152-6. 2009
    In previous work we have shown that the toxicity of nanomaterials to Daphnia spp. differs with the type of nanoparticle either due to the core of the particle or to the way in which a particle suspension is prepared...
  40. ncbi Differential gene expression in Daphnia magna suggests distinct modes of action and bioavailability for ZnO nanoparticles and Zn ions
    Helen C Poynton
    National Exposure Research Laboratory, US Environmental Protection Agency, Cincinnati, Ohio, USA
    Environ Sci Technol 45:762-8. 2011
    ..ZnO NPs in suspension dissolves, and this fraction cannot account for the toxicity of the ZnO NP suspensions to Daphnia magna. Gene expression profiling of D...
  41. pmc Behavioral and physiological changes in Daphnia magna when exposed to nanoparticle suspensions (titanium dioxide, nano-C60, and C60HxC70Hx)
    Sarah B Lovern
    University of Wisconsin Milwaukee, Great Lakes WATER Institute, 600 E Greenfield Avenue, Milwaukee, Wisconsin 53204, USA
    Environ Sci Technol 41:4465-70. 2007
    ..In this experiment, we quantified these behavioral and physiological responses of Daphnia magna at sublethal nanoparticle concentrations...
  42. ncbi Identification of peptide metabolites of Microcystis (Cyanobacteria) that inhibit trypsin-like activity in planktonic herbivorous Daphnia (Cladocera)
    Olaf Czarnecki
    Humboldt Universitat Berlin, Institut fur Biologie, AG Okophysiologie, Luisenstr 53, 10117 Berlin, Germany
    Environ Microbiol 8:77-87. 2006
    ..for their potential to inhibit trypsin-like activity in the planktonic crustacea Daphnia, the main herbivores in freshwater ecosystem...
  43. ncbi How do consumers deal with stoichiometric constraints? Lessons from functional genomics using Daphnia pulex
    Punidan D Jeyasingh
    Department of Zoology, Oklahoma State University, Stillwater, OK 74078, USA
    Mol Ecol 20:2341-52. 2011
    ..varying supply and demand of phosphorus relative to other dietary components in the keystone limnetic herbivore, Daphnia pulex...
  44. pmc Fine-scale temporal and spatial variation of taxon and clonal structure in the Daphnia longispina hybrid complex in heterogeneous environments
    Mingbo Yin
    Ludwig Maximilians Universitat, Department Biologie II, Evolutionsökologie, Grosshaderner Str, 2, D 82152 Planegg Martinsried, Germany
    BMC Evol Biol 12:12. 2012
    Cyclical parthenogenetic water fleas of the genus Daphnia have become a prominent model organism in ecology and evolution...
  45. pmc Rapid, local adaptation of zooplankton behavior to changes in predation pressure in the absence of neutral genetic changes
    C Cousyn
    Laboratory of Aquatic Ecology, Katholieke Universiteit Leuven, Ch. De Beriotstraat 32, B-3000 Leuven, Belgium
    Proc Natl Acad Sci U S A 98:6256-60. 2001
    ..Starting from a natural resting egg bank of the waterflea Daphnia, we compare the evolutionary rates of change in an adaptive quantitative trait with those in selectively neutral ..
  46. ncbi Toxicogenomic responses of nanotoxicity in Daphnia magna exposed to silver nitrate and coated silver nanoparticles
    Helen C Poynton
    Department of Environmental, Earth and Ocean Sciences, University of Massachusetts, Boston, Boston, MA 02125, United States
    Environ Sci Technol 46:6288-96. 2012
    ..In the present study we used a 15k oligonucleotide microarray for Daphnia magna, a freshwater crustacean and common indicator species for toxicity, to differentiate between particle ..
  47. ncbi Comparison of nanosilver and ionic silver toxicity in Daphnia magna and Pimephales promelas
    Sarah M Hoheisel
    U S Environmental Protection Agency, Mid Continent Ecology Division, Duluth, MN, USA
    Environ Toxicol Chem 31:2557-63. 2012
    ..the potency of nanosilver to ionic silver (Ag(+)) at acute and sublethal levels using two test organisms (Daphnia magna and Pimephales promelas). The 48-h D...
  48. pmc Fecundity compensation and tolerance to a sterilizing pathogen in Daphnia
    P F Vale
    Centre d Ecologie Fonctionnelle et Evolutive, UMR 5175, Montpellier, France
    J Evol Biol 25:1888-96. 2012
    ..Here, we tested for genetic variation in the multiple steps of defence when the invertebrate Daphnia magna is infected with the sterilizing bacterial pathogen Pasteuria ramosa: anti-infection resistance, anti-..
  49. ncbi Molecular mechanisms of tolerance to cyanobacterial protease inhibitors revealed by clonal differences in Daphnia magna
    Anke Schwarzenberger
    Zoological Institute, Cologne Biocentre, University of Cologne, Zuelpicher Str 47b, 50674, Cologne, Germany
    Mol Ecol 21:4898-911. 2012
    ..freshwater ecosystems, the interaction between primary producers and herbivores is mainly represented by Daphnia and cyanobacteria. Protease inhibitors have been found in many cyanobacterial blooms...
  50. ncbi Acute toxicity of two CdSe/ZnSe quantum dots with different surface coating in Daphnia magna under various light conditions
    Jiyoun Lee
    School of Public Health, Seoul National University, Seoul, 110 799 Korea
    Environ Toxicol 25:593-600. 2010
    ..In the present study, we employed freshwater macroinvertebrate, Daphnia magna, to evaluate toxicity characteristics of cadmium selenide/zinc selenide (CdSe/ZnSe) in relation to surface ..
  51. ncbi Host-parasite 'Red Queen' dynamics archived in pond sediment
    Ellen Decaestecker
    Laboratory of Aquatic Ecology and Evolutionary Biology, Katholieke Universiteit Leuven, Charles De Beriotstraat 32, 3000 Leuven, Belgium
    Nature 450:870-3. 2007
    ..Dormant stages of both the water flea Daphnia and its microparasites are conserved in lake sediments, providing an archive of past gene pools...
  52. pmc Single nucleotide polymorphism discovery from expressed sequence tags in the waterflea Daphnia magna
    Luisa Orsini
    Laboratory of Aquatic Ecology and Evolutionary Biology, K, U, Leuven, CH, Deberiotstraat 32, 3000 Leuven, Belgium
    BMC Genomics 12:309. 2011
    b>Daphnia (Crustacea: Cladocera) plays a central role in standing aquatic ecosystems, has a well known ecology and is widely used in population studies and environmental risk assessments...
  53. ncbi Prior residency does not always pay off--co-infections in Daphnia
    Jennifer N Lohr
    Ludwig Maximilians Universitat Munchen, Department Biologie II, Evolutionsökologie, Grosshaderner Strasse 2, D 82152 Planegg Martinsried, Germany
    Parasitology 137:1493-500. 2010
    ..We infected a single genotype of the waterflea Daphnia galeata with both the intestinal protozoan Caullerya mesnili and the haemolymph fungus Metschnikowia sp...
  54. ncbi Phototoxicity of CdSe/ZnSe quantum dots with surface coatings of 3-mercaptopropionic acid or tri-n-octylphosphine oxide/gum arabic in Daphnia magna under environmentally relevant UV-B light
    Jungkon Kim
    Department of Environmental Health, School of Public Health, Seoul National University, 28 Yunkeon, Chongro, Seoul 110 799, Republic of Korea
    Aquat Toxicol 97:116-24. 2010
    ..We performed an in vivo study employing Daphnia magna to evaluate the mechanism involved in toxicity of cadmium selenide/zinc selenide quantum dots (QDs) with ..
  55. ncbi Toxicity identification evaluation of leachates from municipal solid waste landfills: a multispecies approach
    Marina Isidori
    Dipartimento di Scienze della Vita, Seconda Universita di Napoli, Via A Vivaldi, 43 I 81100, Caserta, Italy
    Chemosphere 52:85-94. 2003
    ..the freshwater rotifer Brachionus calyciflorus and the freshwater crustaceans Thamnocephalus platyurus and Daphnia magna...
  56. ncbi Biotransformation and bioconcentration of pyrene in Daphnia magna
    Jarkko Akkanen
    Department of Biology, Laboratory of Aquatic Ecology and Ecotoxicology, University of Joensuu, P O Box 111, FIN 80101, Joensuu, Finland
    Aquat Toxicol 64:53-61. 2003
    Water fleas (Daphnia magna) were exposed to [14C]pyrene in the presence and absence of piperonyl butoxide (PBO), a general cytochrome P450 (CYP) inhibitor, in organic carbon-free artificial freshwater (AFW, DOC<0...
  57. ncbi Effects of pesticides on community structure and ecosystem functions in agricultural streams of three biogeographical regions in Europe
    Ralf Bernhard Schäfer
    UFZ Helmholtz Centre for Environmental Research, Dept System Ecotoxicology, Permoser Strasse 15, 04318 Leipzig, Germany
    Sci Total Environ 382:272-85. 2007
    ..the community structure was detectable at a concentration range as low as 1/100 to 1/1000 the acute 48 h-LC50 of Daphnia magna...
  58. ncbi Introduction of foreign DNA into the water flea, Daphnia magna, by electroporation
    Yasuhiko Kato
    Okazaki Institute for Integrative Bioscience, Japan
    Ecotoxicology 19:589-92. 2010
    ..This is the first report of gene introduction to daphnids and, together with the emerging genome sequences, will be useful for the expanding our use of daphnid in ecotoxicology...
  59. ncbi Quantitative DNA-methylation in Daphnia magna and effects of multigeneration Zn exposure
    M B Vandegehuchte
    Laboratory of Environmental Toxicology and Aquatic Ecology, Ghent University, Ghent, Belgium
    Comp Biochem Physiol C Toxicol Pharmacol 150:343-8. 2009
    ..The presence of DNA methylation in Daphnia magna has only very recently been demonstrated, although not quantified...
  60. ncbi Fractionating nanosilver: importance for determining toxicity to aquatic test organisms
    Alan J Kennedy
    US Army Engineer Research and Development Center, Vicksburg, Mississippi 39180, United States
    Environ Sci Technol 44:9571-7. 2010
    ..and coatings (citrate, polyvinylpyrrolidone, EDTA, proprietary) was assessed using three aquatic test organisms (Daphnia magna, Pimephales promelas, Pseudokirchneriella subcapitata)...
  61. ncbi Ecotoxicity of engineered nanoparticles to aquatic invertebrates: a brief review and recommendations for future toxicity testing
    A Baun
    Department of Environmental Engineering, Technical University of Denmark, Miljoevej, Building 113, 2800 Kgs Lyngby, Denmark
    Ecotoxicology 17:387-95. 2008
    ..In addition, the majority of the studies have used Daphnia magna as the test organism...
  62. ncbi Ecotoxicity of nanoparticles of CuO and ZnO in natural water
    I Blinova
    Laboratory of Molecular Genetics, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, Tallinn 12618, Estonia
    Environ Pollut 158:41-7. 2010
    ..The acute toxicity of CuO and ZnO nanoparticles in artificial freshwater (AFW) and in natural waters to crustaceans Daphnia magna and Thamnocephalus platyurus and protozoan Tetrahymena thermophila was compared...
  63. ncbi Assays with Daphnia magna and Danio rerio as alert systems in aquatic toxicology
    J Martins
    Departamento de Zoologia e Antropologia, Faculdade de Ciencias, Universidade do Porto, Praça Gomes Teixeira, 4099 002 Porto, Portugal
    Environ Int 33:414-25. 2007
    ..The aim of this research was to evaluate the use of ecotoxicity assays with Daphnia magna and Danio rerio as alert systems in water contaminated with toxic substances...
  64. ncbi Clonal erosion and genetic drift in cyclical parthenogens--the interplay between neutral and selective processes
    J Vanoverbeke
    Laboratory of Aquatic Ecology and Evolutionary Biology, KU Leuven, Leuven, Belgium
    J Evol Biol 23:997-1012. 2010
    ..Using a physiologically structured model of the life history of Daphnia, we investigated to what extent clonal erosion associated with selection during the clonal phase affects the ..
  65. ncbi Cryptic intercontinental colonization in water fleas Daphnia pulicaria inferred from phylogenetic analysis of mitochondrial DNA variation
    Silvia Markova
    Department of Ecology, Faculty of Science, Charles University, Prague 2, Czech Republic
    Mol Phylogenet Evol 44:42-52. 2007
    The water fleas of the Daphnia pulex complex play a key role in freshwater ecosystems throughout the northern hemisphere...
  66. ncbi Postexposure feeding depression: a new toxicity endpoint for use in laboratory studies with Daphnia magna
    Ruth A McWilliam
    Environment Group, Institute of Aquaculture, University of Stirling, Scotland, United Kingdom
    Environ Toxicol Chem 21:1198-205. 2002
    ..Previous studies have indicated that Daphnia magna exposed to toxic substances can exhibit delayed recovery in feeding behavior (postexposure feeding ..
  67. ncbi Acute and chronic effects of nano- and non-nano-scale TiO(2) and ZnO particles on mobility and reproduction of the freshwater invertebrate Daphnia magna
    Karin Wiench
    BASF, Product Safety Regulations, Toxicology and Ecology, GUP CB Z470, Ludwigshafen, Germany
    Chemosphere 76:1356-65. 2009
    ..Therefore, the potential effects of nano-scale and non-nano-scale TiO(2) and ZnO on the water flea, Daphnia magna, were examined in 48-h acute toxicity tests using three different test media, several pigment formulations--..
  68. ncbi Development of an RNA interference method in the cladoceran crustacean Daphnia magna
    Yasuhiko Kato
    Okazaki Institute for Integrative Bioscience, Myodaiji, Aichi, Japan
    Dev Genes Evol 220:337-45. 2011
    ..a technique to inject exogenous materials into ovulated eggs and developed a dsRNA-based RNAi method for Daphnia magna...
  69. pmc Predator-induced defences in Daphnia pulex: selection and evaluation of internal reference genes for gene expression studies with real-time PCR
    Katina I Spanier
    Department of Animal Ecology, Ruhr University Bochum, D 44780 Bochum, Germany
    BMC Mol Biol 11:50. 2010
    The planktonic microcrustacean Daphnia pulex is among the best-studied animals in ecological, toxicological and evolutionary research. One aspect that has sustained interest in the study system is the ability of D...
  70. ncbi Estimation of cumulative aquatic exposure and risk due to silver: contribution of nano-functionalized plastics and textiles
    Sabine A Blaser
    Institute for Chemical and Bioengineering, ETH Zurich, CH 8093 Zurich, Switzerland
    Sci Total Environ 390:396-409. 2008
    ..However, our study indicates that PEC/PNEC ratios greater than 1 cannot be ruled out for freshwater ecosystems, in particular sediments. No risk is predicted for microbial communities in sewage treatment plants...
  71. ncbi Exploring embryonic germ line development in the water flea, Daphnia magna, by zinc-finger-containing VASA as a marker
    Kazunori Sagawa
    School of Life Science, Tokyo University of Pharmacy and Life Science, Hachioji, Japan
    Gene Expr Patterns 5:669-78. 2005
    ..on germ line development in crustaceans, we cloned VASA cDNAs from three branchiopod species: water fleas Daphnia magna and Moina macrocopa, and brine shrimp Artemia franciscana...
  72. ncbi Genetic diversity of Daphnia magna populations enhances resistance to parasites
    Florian Altermatt
    Zoologisches Institut, Universitat Basel, Vesalgasse 1, CH 4051 Basel, Switzerland
    Ecol Lett 11:918-28. 2008
    ..We followed the spread of a microsporidian parasite in semi-natural outdoor Daphnia magna populations of low and high genetic diversity...
  73. ncbi Rapid evolution and ecological host-parasite dynamics
    Meghan A Duffy
    W K Kellogg Biological Station, Michigan State University, 3700 E Gull Lake Drive, Hickory Corners, MI 49060, USA
    Ecol Lett 10:44-53. 2007
    ..Focusing on a particular host-parasite system, Daphnia dentifera and its parasite Metschnikowia bicuspidata, we show that Daphnia from lakes with recent epidemics were ..
  74. ncbi The cost of being common: evidence from natural Daphnia populations
    Justyna Wolinska
    Indiana University, Department of Biology, Bloomington, Indiana 47405, USA
    Evolution 63:1893-901. 2009
    ..Queen theory operates in the wild, we studied the genetic structure of populations of the crustacean waterflea (Daphnia), in relation to their infection levels, for which we collected multiple samples from a variety of lakes...
  75. ncbi Juvenoid hormone methyl farnesoate is a sex determinant in the crustacean Daphnia magna
    Allen W Olmstead
    Department of Environmental and Molecular Toxicology, North Carolina State University, Raleigh, North Carolina 27695 7633, USA
    J Exp Zool 293:736-9. 2002
    Daphnids (Daphnia magna) utilize cyclic parthenogenesis as a reproductive strategy. During periods of abundant resources, these organisms reproduce asexually...
  76. pmc Draft genome sequence of the Daphnia pathogen Octosporea bayeri: insights into the gene content of a large microsporidian genome and a model for host-parasite interactions
    Nicolas Corradi
    Canadian Institute for Advanced Research, The Biodiversity Research Centre, University of British Columbia, University Boulevard, Vancouver, BC V6T 1Z4, Canada
    Genome Biol 10:R106. 2009
    ..cuniculi. In this study, we present an in-depth survey of the large genome of Octosporea bayeri, a pathogen of Daphnia magna, with an estimated genome size of 24 Mb, in order to shed light on the organization and content of a large ..
  77. pmc The cytochrome P450 (CYP) gene superfamily in Daphnia pulex
    William S Baldwin
    Clemson University, Biological Sciences, Institute of Environmental Toxicology, Pendleton, SC, USA
    BMC Genomics 10:169. 2009
    ..The latter form a critical component of detoxification systems...
  78. ncbi Reticulate evolution of the Daphnia pulex complex as revealed by nuclear markers
    Roland Vergilino
    Departement de Biologie, Centre d Etudes Nordiques, Universite du Quebec a Rimouski, Quebec, Canada
    Mol Ecol 20:1191-207. 2011
    ..The Daphnia pulex complex has been intensively studied as it includes species that dominate freshwater environments in the ..
  79. ncbi Measuring parasite fitness under genetic and thermal variation
    P F Vale
    Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Ashworth Labs, Scotland, UK
    Heredity (Edinb) 103:102-9. 2009
    ..Using the natural host-parasite system Daphnia magna-Pasteuria ramosa, we performed experimental infections that incorporated host and parasite genetic ..
  80. pmc Profiling sex-biased gene expression during parthenogenetic reproduction in Daphnia pulex
    Brian D Eads
    The Center for Genomics and Bioinformatics and Department of Biology, Indiana University Bloomington, Indiana 47405, USA
    BMC Genomics 8:464. 2007
    ..microarray to investigate gene expression in males and two reproductive stages of females in the crustacean Daphnia pulex...
  81. ncbi Embryological aspects of inducible morphological defenses in Daphnia
    Christian Laforsch
    Section of Evolutionary Ecology and GeoBioCenter, Department of Biology II, Ludwig Maximilians Universitat Munchen, 82152 Planegg Martinsried, Germany
    J Morphol 262:701-7. 2004
    ..We compared for the first time in five different Daphnia species the embryonic development of predator-induced and noninduced animals using scanning electron microscopy (..
  82. ncbi Development of a base set of toxicity tests using ultrafine TiO2 particles as a component of nanoparticle risk management
    David B Warheit
    DuPont Haskell Laboratory for Health and Environmental Sciences, Newark, DE 19714 0050, USA
    Toxicol Lett 171:99-110. 2007
    ..uf-TiO(2) exhibited low concern for aquatic hazard in unaerated, 48h, static acute tests using the water flea, Daphnia magna; exhibited low concern for aquatic hazard in unaerated, 96h, static acute tests using the rainbow trout, ..
  83. ncbi Expression of Bacillus cereus hemolysin II in Bacillus subtilis renders the bacteria pathogenic for the crustacean Daphnia magna
    Elena V Sineva
    Laboratory of Molecular Microbiology, Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Pushchino, Moscow Region, Russia
    FEMS Microbiol Lett 299:110-9. 2009
    ..the expression of hlyII in Bacillus subtilis renders the bacteria hemolytic and is able to kill the crustacean Daphnia magna. The hemolytic activity of hlyII-encoded B...
  84. ncbi Toxicity assessment of metabolites of fungal biocontrol agents using two different (Artemia salina and Daphnia magna) invertebrate bioassays
    M Favilla
    Institute of Sciences of Food Production, CNR, Via G Amendola 122, 70125 Bari, Italy
    Food Chem Toxicol 44:1922-31. 2006
    ..Two invertebrate models, viz. Artemia salina and Daphnia magna were used to assess the acute toxicity of seven BCA metabolites, characterized by different chemical nature ..
  85. ncbi A multivariate biomarker-based model predicting population-level responses of Daphnia magna
    Wim M De Coen
    Laboratory for Ecophysiology and Biochemistry, University of Antwerp, Groenenborgerlaan 171, B 2020 Antwerp, Belgium
    Environ Toxicol Chem 22:2195-201. 2003
    A multivariate model is proposed relating short-term biomarker measurements in Daphnia magna to chronic effects (21-d exposure) occurring at the population level (time to death, mean brood size, mean total young per female, intrinsic ..
  86. pmc Disentangling the influence of parasite genotype, host genotype and maternal environment on different stages of bacterial infection in Daphnia magna
    Matthew D Hall
    Zoologisches Institut, Evolutionsbiologie, University of Basel, Basel 4051, Switzerland
    Proc Biol Sci 279:3176-83. 2012
    ..Here, we use the crustacean Daphnia magna and its parasite Pasteuria ramosa to show how disentangling genetic and environmental factors at different ..
  87. ncbi Chronic effects of cyanobacterial toxins on Daphnia magna and their offspring
    Thanh Son Dao
    Institute for Environment and Resources, 142 To Hien Thanh Street, District 10, Ho Chi Minh City, Vietnam
    Toxicon 55:1244-54. 2010
    The zooplankton grazer Daphnia magna endures living in water bodies up to moderate densities of cyanobacteria, such as Microcystis spp., known for producing toxic secondary metabolites...
  88. ncbi Comparison of acute and chronic toxicity of silver nanoparticles and silver nitrate to Daphnia magna
    Chun Mei Zhao
    The Hong Kong University of Science and Technology, Kowloon, Hong Kong
    Environ Toxicol Chem 30:885-92. 2011
    ..of AgNP and its bioaccumulation from both aqueous and dietary sources in a model freshwater cladoceran, Daphnia magna...
  89. ncbi Synergistic toxic effect of nano-TiO and As(V) on Ceriodaphnia dubia
    Demin Wang
    Department of Civil, Architectural and Environmental Engineering, Missouri University of Science and Technology, Rolla, MO 65409, USA
    Sci Total Environ 409:1351-6. 2011
    ..Hydrodynamic size and sorption capacity were most important parameters for toxicity...
  90. pmc Evolution of the nuclear ribosomal DNA intergenic spacer in four species of the Daphnia pulex complex
    Cheryl D Ambrose
    Department of Integrative Biology, University of Guelph, Guelph, ON N1G2W1, Canada
    BMC Genet 12:13. 2011
    ..and/or homogenization within IGS repeat arrays, and to identify regions of the IGS that are under functional constraint, we analyzed 13 complete IGS sequences from 10 individuals representing four species in the Daphnia pulex complex.
  91. ncbi Differentiation of the toxicities of silver nanoparticles and silver ions to the Japanese medaka (Oryzias latipes) and the cladoceran Daphnia magna
    Jiwon Kim
    Environmental Toxicology Center, Division of Research and Development, Korea Institute of Toxicology KIT, Yuseong, Daejon, Korea
    Nanotoxicology 5:208-14. 2011
    ..The 48-h effective concentration 50 (EC(50)) values for Daphnia magna of suspensions of 60 nm and 300 nm AgNPs were 1.0 (95% confidence interval [CI] = 0.1-1.3) and 1...
  92. ncbi Protection against the toxicity of microcystin-LR and cylindrospermopsin in Artemia salina and Daphnia spp. by pre-treatment with cyanobacterial lipopolysaccharide (LPS)
    J Lindsay
    Division of Environmental and Applied Biology, School of Life Sciences, University of Dundee, Dundee DD1 4HN, UK
    Toxicon 48:995-1001. 2006
    ..cyanobacterial lipopolysaccharide (LPS) was not acutely toxic to three aquatic invertebrates (Artemia salina, Daphnia magna and Daphnia galeata) in immersion trials...
  93. ncbi Genetic variation for maternal effects on parasite susceptibility
    M Stjernman
    Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Ashworth Laboratories, Edinburgh, UK
    J Evol Biol 24:2357-63. 2011
    ..studied how maternal effects (high or low food availability to mothers) mediated the resistance of the crustacean Daphnia magna to its bacterial parasite Pasteuria ramosa...
  94. ncbi Life stage- dependent bioconcentration of a nonylphenol isomer in Daphnia magna
    Thomas G Preuss
    Institute of Environmental Research Biology V, Aachen University, Worringerweg 1, D 52066 Aachen, Germany
    Environ Pollut 156:1211-7. 2008
    ..In this study we used a radiolabeled nonylphenol isomer to investigate the bioconcentration in Daphnia magna at different ages. Apart from the total radioactivity we measured the metabolism of p353-NP in D...
  95. ncbi Predator-induced defense makes Daphnia more vulnerable to parasites
    Mingbo Yin
    Ludwig Maximilians University Munich, Department Biology II, Grosshaderner Str 2, D 82152 Planegg Martinsried, Germany
    Evolution 65:1482-8. 2011
    ..Our current work reveals a significant cost to inducible defenses. Using the waterflea (Daphnia) model system, we show that induced defended morphs are significantly more vulnerable to infection by a virulent ..
  96. ncbi Metabolomics of microliter hemolymph samples enables an improved understanding of the combined metabolic and transcriptional responses of Daphnia magna to cadmium
    Helen C Poynton
    National Exposure Research Laboratory, U S Environmental Protection Agency, Cincinnati, Ohio, United States
    Environ Sci Technol 45:3710-7. 2011
    ..and whole-body transcriptome to reveal early processes leading to chronic toxicity in the indicator species, Daphnia magna, after 24-h sublethal cadmium exposure (18 μg/L, corresponding to 1/10 LC(50))...
  97. pmc High mutation rates in the mitochondrial genomes of Daphnia pulex
    Sen Xu
    Great Lakes Institute for Environmental Research, University of Windsor, Windsor, Ontario, Canada
    Mol Biol Evol 29:763-9. 2012
    ..In this study, we directly estimate the mtDNA mutation rate and spectrum using Daphnia pulex mutation-accumulation (MA) lines derived from sexual (cyclically parthenogenetic) and asexual (obligately ..
  98. ncbi The effect of fullerenes and functionalized fullerenes on Daphnia magna phototaxis and swimming behavior
    Kathryn A Brausch
    The Institute of Environmental and Human Health, Texas Tech University, Lubbock, Texas, USA
    Environ Toxicol Chem 30:878-84. 2011
    ..Previous studies have reported alteration in Daphnia magna behavior, including increased hopping frequency, heart rate, and appendage movement in response to ..
  99. ncbi Acute toxicity of nanosized TiO(2) to Daphnia magna under UVA irradiation
    Irene Amiano
    GLP Ecotoxicity Laboratory, Tecnalia, Azpeitia, Spain
    Environ Toxicol Chem 31:2564-6. 2012
    ..and the expected solar UVA contribution, will allow a more realistic understanding of the toxicity of TiO(2) to Daphnia magna. The results show that the contribution of UVA to TiO(2) toxicity cannot be ignored...
  100. pmc Histaminergic signaling in the central nervous system of Daphnia and a role for it in the control of phototactic behavior
    Matthew D McCoole
    Department of Toxicology, College of Pharmacy, University of Louisiana at Monroe, 700 University Avenue, Monroe, LA 71209, USA
    J Exp Biol 214:1773-82. 2011
    b>Daphnia magna and Daphnia pulex are well-established model organisms in the fields of ecotoxicology and toxicogenomics...
  101. ncbi Potential synergistic effects of microcystins and bacterial lipopolysaccharides on life history traits of Daphnia galeata raised on low and high food levels
    L Miguel Dionisio Pires
    Netherlands Institute of Ecology, Department of Aquatic Ecology, 6700 AB Wageningen, The Netherlands
    Aquat Toxicol 104:230-42. 2011
    Metastudies have found no consistent effects of the cyanobacterial toxin microcystin on Daphnia, and there are discrepancies between field observations and experiments...

Research Grants19

  1. Expression and evolution of chemoreceptor genes in the model organism Daphnia
    DINORA CAROLINA PENALVA ARANA; Fiscal Year: 2010
    ..The Daphnia genome has recently been sequenced and a set of 58 gustatory receptor genes (Grs) has been identified...
  2. Characterization and genetic analysis of aging in Daphnia
    Jeffry L Dudycha; Fiscal Year: 2013
    DESCRIPTION (provided by applicant): This project will develop the microcrustacean Daphnia as a model system for the biology of aging...
  3. Population Genomics of Daphnia pulex
    MICHAEL R LYNCH; Fiscal Year: 2013
    ..goal of this project is to obtain high-quality sequence for the genomes of ~150 isolates of the microcrustacean Daphnia pulex, as well as lower-coverage data for ~5000 additional geographically distributed genotypes for population-..
  4. Effects of environmental contamination on gene copy number variation: Molecular b
    Joseph Shaw; Fiscal Year: 2013
    ..Accordingly, our proposal employs studies using the recently added and ideal NIH model organism, Daphnia, to test the central hypothesis that exposure to environmental contaminants increase the rate of mutations giving ..
  5. Daphnia Functional Genomics Resource
    MICHAEL EUGENE PFRENDER; Fiscal Year: 2010
    ..b>Daphnia is a logical candidate study system for further development to fill this gap...
  6. Daphnia DNA Microarrays
    Owen Hughes; Fiscal Year: 2002
    ..Specifically, in this Phase I work we will construct a pilot array for Daphnia pulex...
  7. Fathead minnow DNA microarrays
    Owen Hughes; Fiscal Year: 2002
    ..If this work proves feasibility, Phase II will involve developing a reasonably comprehensive Pimephales array as well as beginning arrays for Daphnia, duckweed, and green algae.
  8. MASS SPECTRAL SEQUENCING OF CARBOHYDRATES
    Vernon Reinhold; Fiscal Year: 2009
    ..To tackle this research area we introduce a new and more appropriate animal model Daphnia. We discuss the many reasons this simple microcrustacean is appropriate for the tasks ahead and supply ..
  9. NEURAL CONTROL OF SENSORY ACQUISITION
    Mark Nelson; Fiscal Year: 2004
    ..The modeling framework is used to quantitatively evaluate the contributions of afferent convergence and spatiotemporal filtering in the ELL maps to the enhancement of the signal and the suppression of the background. ..
  10. Induction of breast cancer in MMTVneu mice
    William Baldwin; Fiscal Year: 2002
    ..Overall, the purpose of this study is to examine 4-nonylphenol's effects on breast cancer growth and its mechanism of action on the mammary tumor. ..
  11. Modeling, Estimation and Control in HIV Dynamics
    H Banks; Fiscal Year: 2005
    ....
  12. Inflammatory Processes in Aging Drosophila
    Scott Pletcher; Fiscal Year: 2007
    ..unreadable] [unreadable] [unreadable]..
  13. Genetics of Aging and Innate Immunity in Drosophilla
    Scott Pletcher; Fiscal Year: 2005
    ..We will also measure the physiological and transcriptional response to controlled exposure to infectious agents and determine whether lifespan in Drosophila is limited by natural exposure to pathogens. ..
  14. Proteomics Study of Peripheral Blood Monocytes on Osteoporosis
    Hong Wen Deng; Fiscal Year: 2007
    ..unreadable] [unreadable] [unreadable]..
  15. Genetic Basis of Osteoporotic Fractures and Bone Mass
    Hong Wen Deng; Fiscal Year: 2005
    ..There are only a few remaining minor concerns. Five years of support are recommended with an outstanding level of enthusiasm. ..
  16. The Rate and Molecular Spectrum of Spontaneous Mutations
    Michael Lynch; Fiscal Year: 2009
    ..four model systems: the yeast Saccharomyces cerevisiae, the nematode Caenorhabditis elegans, the microcrustacean Daphnia pulex, and the ciliate Paramecium tetraurelia...
  17. Directory and Information System components for genomes
    Donald Gilbert; Fiscal Year: 2003
    ..Such a module for automated, common-standard use of organism genome data is an important step toward a grid of data useable for the large-scale analyses desired bioscientists. ..
  18. CHARACTERIZATION OF DELETERIOUS GENOMIC MUTATIONS
    Hong Wen Deng; Fiscal Year: 2005
    ..abstract_text> ..
  19. Genomic search for bone mass QTLs
    Hong Wen Deng; Fiscal Year: 2010
    ..This knowledge is essential for the development of preventive interventions and/or cures for osteoporosis that may be based on individuals'specific genotypes. ..