Genomes and Genes
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.
Publications275 found, 100 shown here
- The ecoresponsive genome of Daphnia pulexJohn K Colbourne
Center for Genomics and Bioinformatics, Indiana University, 915 East Third Street, Bloomington, IN 47405, USA
Science 331:555-61. 2011We describe the draft genome of the microcrustacean Daphnia pulex, which is only 200 megabases and contains at least 30,907 genes...
- Extensive, recent intron gains in Daphnia populationsWenli 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...
- Host-parasite 'Red Queen' dynamics archived in pond sedimentEllen 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...
- Role of microcystins in poisoning and food ingestion inhibition of Daphnia galeata caused by the cyanobacterium Microcystis aeruginosaT Rohrlack
Research Group Ecology, Department of Biology, Humboldt University, D 10099 Berlin, Germany
Appl Environ Microbiol 65:737-9. 1999The effects of microcystins on Daphnia galeata, a typical filter-feeding grazer in eutrophic lakes, were investigated...
- The Dscam homologue of the crustacean Daphnia is diversified by alternative splicing like in insectsDaniela 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...
- Genetic diversity of Daphnia magna populations enhances resistance to parasitesFlorian 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...
- The cost of being common: evidence from natural Daphnia populationsJustyna 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...
- Ecotoxicity of engineered nanoparticles to aquatic invertebrates: a brief review and recommendations for future toxicity testingA 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...
- Clonal erosion and genetic drift in cyclical parthenogens--the interplay between neutral and selective processesJ 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 ..
- Quantitative DNA-methylation in Daphnia magna and effects of multigeneration Zn exposureM 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...
- Ecotoxicity of nanoparticles of CuO and ZnO in natural waterI 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...
- Toxicity and bioaccumulation of TiO2 nanoparticle aggregates in Daphnia magnaXiaoshan 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...
- 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)...
- Assays with Daphnia magna and Danio rerio as alert systems in aquatic toxicologyJ 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...
- Fractionating nanosilver: importance for determining toxicity to aquatic test organismsAlan 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)...
- Cloning of the unculturable parasite Pasteuria ramosa and its Daphnia host reveals extreme genotype-genotype interactionsPepijn 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...
- Introduction of foreign DNA into the water flea, Daphnia magna, by electroporationYasuhiko 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...
- Effects of pesticides on community structure and ecosystem functions in agricultural streams of three biogeographical regions in EuropeRalf 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...
- Postexposure feeding depression: a new toxicity endpoint for use in laboratory studies with Daphnia magnaRuth 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 ..
- Cryptic intercontinental colonization in water fleas Daphnia pulicaria inferred from phylogenetic analysis of mitochondrial DNA variationSilvia Markova
Department of Ecology, Faculty of Science, Charles University, Prague 2, Czech Republic
Mol Phylogenet Evol 44:42-52. 2007The water fleas of the Daphnia pulex complex play a key role in freshwater ecosystems throughout the northern hemisphere...
- Effects of particle composition and species on toxicity of metallic nanomaterials in aquatic organismsRobert 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...
- Development of a base set of toxicity tests using ultrafine TiO2 particles as a component of nanoparticle risk managementDavid 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, ..
- Exploring embryonic germ line development in the water flea, Daphnia magna, by zinc-finger-containing VASA as a markerKazunori 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...
- The impact of human-made ecological changes on the genetic architecture of Daphnia speciesNora Brede
Department of Ecology and Evolution, Goethe University Frankfurt am Main, Siesmayerstrasse 70, D 60054 Frankfurt am Main, Germany
Proc Natl Acad Sci U S A 106:4758-63. 2009..We reconstructed the genetic architecture of a Daphnia species complex in 2 European lakes using diapausing eggs that were isolated from sediment layers covering the ..
- Inference of parasite local adaptation using two different fitness componentsD Refardt
Unité Ecologie et Evolution, Departement de Biologie, Chemin du Musee 10, Fribourg, Switzerland
J Evol Biol 20:921-9. 2007..We assessed local adaptation of the microsporidium Ordospora colligata to its host, the crustacean Daphnia magna using two different parasite fitness components: infection persistence over several host generations in ..
- Analyzing effects of pesticides on invertebrate communities in streamsMatthias 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 ..
- Biotransformation and bioconcentration of pyrene in Daphnia magnaJarkko 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. 2003Water 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...
- Transgenerational effects of poor elemental food quality on Daphnia magnaPaul C Frost
Department of Biology, Trent University, Peterborough, ON K9J 7B8, Canada
Oecologia 162:865-72. 2010..We examined whether P limitation of the aquatic invertebrate, Daphnia magna, alters the responses of its offspring to inadequate P nutrition...
- The effects of multiple infections on the expression and evolution of virulence in a Daphnia-endoparasite systemFrida 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...
- A comparison of nanoparticle and fine particle uptake by Daphnia magnaPhilipp Rosenkranz
School of Life Sciences, Edinburgh Napier University, 10 Colinton Road, Edinburgh, EHIO 5DT Scotland, United Kingdom
Environ Toxicol Chem 28:2142-9. 2009..of a model nanoparticle, a 20-nm fluorescent carboxylated polystyrene bead, in the aquatic invertebrate Daphnia magna and compared it to a larger, 1,000-nm particle...
- Biological surface coating and molting inhibition as mechanisms of TiO2 nanoparticle toxicity in Daphnia magnaAndré 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))...
- Multi-metal interactions between Cd, Cu, Ni, Pb and Zn in water flea Daphnia magna, a stable isotope experimentI Komjarova
Department of Biology, University of Antwerp, Groenenborgerlaan 171, B 2020 Antwerp, Belgium
Aquat Toxicol 90:138-44. 2008Metal interaction effects were investigated in Daphnia magna during a simultaneous exposure to essential (Cu, Ni and Zn) and non-essential (Cd and Pb) metals at environmentally relevant concentrations using a stable isotope technique...
- Influence of stability on the acute toxicity of CdSe/ZnS nanocrystals to Daphnia magnaHeather E Pace
Department of Environmental Science and Engineering, Colorado School of Mines, 1500 Illinois Street, Golden, Colorado 80401, USA
Environ Toxicol Chem 29:1338-44. 2010The acute toxicity of polymer-coated CdSe/ZnS quantum dots (QDs) to Daphnia magna was investigated using 48-h exposure studies. The principal objective was to relate the toxicity of QDs to specific physical and chemical aspects of the QD...
- Contribution of cyclic parthenogenesis and colonization history to population structure in DaphniaAnne Thielsch
Department of Ecology and Evolution, Goethe University Frankfurt am Main, Siesmayerstrasse 70, Frankfurt am Main, Germany
Mol Ecol 18:1616-28. 2009..Members of the cladoceran genus Daphnia are widely distributed key organisms in freshwater habitats, which mostly exhibit this reproduction mode...
- 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 lightJungkon 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 ..
- Oxidative stress responses of Daphnia magna exposed to TiO(2) nanoparticles according to size fractionKi Tae Kim
Department of Environmental Science and Engineering, Gwangju Institute of Science and Technology GIST, 261 Cheom dan Gwagi ro, Buk Gu, Gwangju 500 712, South Korea
Sci Total Environ 408:2268-72. 2010..The effect of particle size on oxidative stress against titanium dioxide nanoparticle (TiO(2) NP) exposure to Daphnia magna was investigated with both acute and chronic toxicity tests...
- Trophic transfer of TiO(2) nanoparticles from Daphnia to zebrafish in a simplified freshwater food chainXiaoshan Zhu
Department of Civil, Environmental, and Sustainable Engineering, Arizona State University, Tempe, AZ 85287, USA
Chemosphere 79:928-33. 2010..To address this concern, a simplified model of a freshwater food chain including a low trophic level organism (daphnia, Daphnia magna) and a high trophic level organism (zebrafish, Danio rerio) was established...
- Abortive meiosis in the oogenesis of parthenogenetic Daphnia pulexChizue 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...
- Development of an RNA interference method in the cladoceran crustacean Daphnia magnaYasuhiko 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...
- Effects of silver and cerium dioxide micro- and nano-sized particles on Daphnia magnaBirgit K Gaiser
Edinburgh Napier University, School of Health, Life and Social Sciences, Sighthill Campus, Sighthill Court, Edinburgh EH11 4BN, UK
J Environ Monit 13:1227-35. 2011Acute (96 h) and chronic (21 d) exposures of Daphnia magna neonates were carried out with nano- and micro-sized Ag and CeO(2) particles to assess the influence of both material and size of particles on mortality and moulting...
- Genetic variation in a host-parasite association: potential for coevolution and frequency-dependent selectionH J Carius
Zoologisches Institut, Universitat Basel, Switzerland
Evolution 55:1136-45. 2001..We used the freshwater crustacean Daphnia magna and its bacterial microparasite Pasteuria ramosa to study genetic variation for host susceptibility and ..
- Ribosomal DNA evolution at the population level: nucleotide variation in intergenic spacer arrays of Daphnia pulexT J Crease
Department of Zoology, University of Guelph, Ontario, Canada
Genetics 141:1327-37. 1995Nucleotide variation was surveyed in 21 subrepeat arrays from the ribosomal DNA intergenic spacer of three Daphnia pulex populations. Eighteen of these arrays contained four subrepeats...
- LTR retroelements in the genome of Daphnia pulexMina Rho
School of Informatics and Computing, Indiana University, Bloomington, IN 47405, USA
BMC Genomics 11:425. 2010..Here, we present a genome-wide analysis of LTR retroelements in Daphnia pulex, a cyclical parthenogen and the first crustacean for which the whole genomic sequence is available...
- Gene up-regulation in response to predator kairomones in the water flea, Daphnia pulexHitoshi Miyakawa
Graduate School of Environmental Science, Hokkaido University, Sapporo, Hokkaido 060 0810, Japan
BMC Dev Biol 10:45. 2010..The genus Daphnia (Branchiopoda, Cladocera) provides a model experimental system for the study of the developmental mechanisms and ..
- Intracellular conversion of environmental nitrate and nitrite to nitric oxide with resulting developmental toxicity to the crustacean Daphnia magnaBethany R Hannas
Department of Environmental and Molecular Toxicology, North Carolina State University, Raleigh, North Carolina, United States of America
PLoS ONE 5:e12453. 2010..We tested the hypothesis that NO(x) undergo intracellular conversion to the potent signaling molecule nitric oxide resulting in the disruption of endocrine-regulated processes...
- Mixtures of similarly acting compounds in Daphnia magna: from gene to metabolite and beyondTine Vandenbrouck
Department of Biology, Laboratory for Ecophysiology, Biochemistry and Toxicology, University of Antwerp, Groenenborgerlaan 171, Antwerp, Belgium
Environ Int 36:254-68. 2010b>Daphnia are an important and widely studied model species in ecological and toxicological studies throughout the world and an official (OECD) recommended test organism...
- The genetic legacy of polyploid Bolivian Daphnia: the tropical Andes as a source for the North and South American D. pulicaria complexJoachim Mergeay
Laboratory of Aquatic Ecology and Evolutionary Biology, Katholieke Universiteit Leuven, Charles Deberiotstraat 32, B 3000 Leuven, Belgium
Mol Ecol 17:1789-800. 2008We investigated genetic variation in asexual polyploid members of the water flea Daphnia pulex complex from a set of 12 Bolivian high-altitude lakes...
- Meiosis genes in Daphnia pulex and the role of parthenogenesis in genome evolutionAndrew M Schurko
Roy J Carver Center for Comparative Genomics and Department of Biology, The University of Iowa, Iowa City, IA 52242, USA
BMC Evol Biol 9:78. 2009..However, little is understood about the molecular determinants of parthenogenesis. The Daphnia pulex genome must contain the molecular machinery for different reproductive modes: sexual (both male and female ..
- Sequence divergence and expression of a transformer gene in the branchiopod crustacean, Daphnia magnaYasuhiko Kato
Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences, and Department of Basic Biology, Faculty of Life Science, Graduate University for Advanced Studies, 5 1 Higashiyama, Myodaiji, Okazaki, Aichi 444 8787, Japan
Genomics 95:160-5. 2010Environmental decline triggers a switch in reproductive strategy of Daphnia magna from asexual to sexual reproduction; however, the molecular basis of such environmental sex determination remains largely unknown...
- The infection rate of Daphnia magna by Pasteuria ramosa conforms with the mass-action principleR R Regoes
Department of Biology, Emory University, 1510 Clifton Rd NE, Atlanta, GA 30322, USA
Epidemiol Infect 131:957-66. 2003..this paper, we examine the relationship between the infection rate and the parasite inoculum for the water flee Daphnia magna and its bacterial parasite Pasteuria ramosa...
- Long-term disease dynamics in lakes: causes and consequences of chytrid infections in Daphnia populationsPieter T J Johnson
Ecology and Evolutionary Biology, Ramaley N122, Campus Box 334, University of Colorado, Boulder, Colorado 80309 0334, USA
Ecology 90:132-44. 2009..We examined the dynamics of Daphnia pulicaria, a keystone zooplankter in lake ecosystems, to explore the long-term causes and consequences of ..
- The first-generation Daphnia magna linkage mapJarkko Routtu
Zoologisches Institut, Evolutionsbiologie, Universitat Basel, Vesalgasse 1, 4051 Basel, Switzerland
BMC Genomics 11:508. 2010b>Daphnia magna is a well-established model species in ecotoxicology, ecology and evolution...
- Ecological genomics: steps towards unraveling the genetic basis of inducible defenses in DaphniaRalph Tollrian
Department of Animal Ecology, Evolution and Biodiversity, Ruhr University Bochum, Universitaetsstrasse 150, D 44801 Bochum, Germany
BMC Biol 8:51. 2010Little is known about the genetic mechanisms underlying inducible defenses. Recently, the genome of Daphnia pulex, a model organism for defense studies, has been sequenced...
- Predator-induced defences in Daphnia pulex: selection and evaluation of internal reference genes for gene expression studies with real-time PCRKatina I Spanier
Department of Animal Ecology, Ruhr University Bochum, D 44780 Bochum, Germany
BMC Mol Biol 11:50. 2010The 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...
- Maternal control of resting-egg production in DaphniaV Alekseev
Present address Zoological Institute of the Russian Academy of Sciences, St Petersburg, 199034
Nature 414:899-901. 2001..Like seeds, resting stages can survive unfavourable conditions. The crustacean Daphnia normally reproduces by means of parthenogenetically produced normal, not resting, eggs-but occasionally switches ..
- Effects of cell-bound microcystins on survival and feeding of Daphnia sppT Rohrlack
Freshwater Biological Laboratory, University of Copenhagen, DK 3400 Hillerød, Denmark
Appl Environ Microbiol 67:3523-9. 2001The influence of cell-bound microcystins on the survival time and feeding rates of six Daphnia clones belonging to five common species was studied...
- Allochronic differentiation among Daphnia species, hybrids and backcrosses: the importance of sexual reproduction for population dynamics and genetic architectureT Jankowski
Limnological Institute, University of Konstanz, Konstanz, Germany
J Evol Biol 17:312-21. 2004Seasonal dynamics of the abundance, sexual reproduction and genetic architecture in a Daphnia hyalina-galeata hybrid complex were studied in the large and deep Lake Constance...
- Chronic toxicity and responses of several important enzymes in Daphnia magna on exposure to sublethal microcystin-LRWei Chen
State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei 430072, People's Republic of China
Environ Toxicol 20:323-30. 2005In the current study, the toxicological mechanisms of microcystin-LR and its disadvantageous effects on Daphnia magna were examined...
- In vivo biomodification of lipid-coated carbon nanotubes by Daphnia magnaAaron P Roberts
Department of Biological Sciences, University of North Texas, Denton, Texas 76203, USA
Environ Sci Technol 41:3025-9. 2007This study examined the interactions between Daphnia magna and a water-soluble, lysophophatidylcholine coated single-walled carbon nanotube. D...
- Gene response profiles for Daphnia pulex exposed to the environmental stressor cadmium reveals novel crustacean metallothioneinsJoseph R Shaw
Department of Biology, Dartmouth College, Hanover, New Hampshire 03755, USA
BMC Genomics 8:477. 2007..A first generation cDNA microarray was developed for the environmental indicator species Daphnia pulex, to identify genes whose regulation is modulated following exposure to the metal stressor cadmium...
- Nucleotide polymorphism and within-gene recombination in Daphnia magna and D. pulex, two cyclical parthenogensChristoph R Haag
University of Edinburgh, Institute of Evolutionary Biology, Edinburgh, UK
Genetics 182:313-23. 2009..nucleotide diversity at eight nuclear loci in continentwide samples of two species of cyclically parthenogenetic Daphnia to assess the effect of partial asexual reproduction on effective population size and amount of recombination...
- Evidence for strong host clone-parasite species interactions in the Daphnia microparasite systemEllen Decaestecker
Laboratory of Aquatic Ecology, Catholic University of Leuven, Ch De Beriotstraat 32, 3000 Leuven, Belgium
Evolution 57:784-92. 2003..In an experimental study, we confronted 19 clones from one Daphnia magna population with two bacterial and three microsporidian parasite species...
- In deep trouble: habitat selection constrained by multiple enemies in zooplanktonEllen Decaestecker
Laboratory of Aquatic Ecology, Catholic University of Leuven, Charles De Beriotstraat 32, 3000 Leuven, Belgium
Proc Natl Acad Sci U S A 99:5481-5. 2002..predator and parasite avoidance may be important in the evolution of habitat selection behavior in the waterflea, Daphnia magna...
- The influence of pool volume and summer desiccation on the production of the resting and dispersal stage in a Daphnia metapopulationFlorian Altermatt
Zoologisches Institut, Universitat Basel, Vesalgasse 1, 4051 Basel, Switzerland
Oecologia 157:441-52. 2008..has strong implications on evolutionary and ecological dynamics and has led to two different hypotheses about the Daphnia metapopulation studied here: the assessment by some authors is that sub-populations contribute equally to the ..
- Unusual duplication of the insulin-like receptor in the crustacean Daphnia pulexPhilippe Boucher
Universite du Quebec a Rimouski, Departement de Biologie, Centre d Etudes Nordiques, 300 Allee des Ursulines, Rimouski, Quebec, G5L 4L8 Canada
BMC Evol Biol 10:305. 2010..This study is the first detailed genomic study of this pathway in a crustacean species, Daphnia pulex.
- Isolation and absolute configuration determination of aliphatic sulfates as the Daphnia kairomones inducing morphological defense of a phytoplanktonKo Yasumoto
Graduate School of Pharmaceutical Sciences, Tokushima University, Japan
Chem Pharm Bull (Tokyo) 54:271-4. 20062,6-Dimethylheptyl sulfate (1) and 6-methyloctyl sulfate (3) were isolated from Daphnia pulex as the Daphnia kairomones that induced morphological defense of a freshwater phytoplankton Scenedesmus gutwinskii var. heterospina (NIES-802)...
- Selective predation and productivity jointly drive complex behavior in host-parasite systemsSpencer R Hall
School of Integrative Biology, University of Illinois at Urbana Champaign, Urbana, Illinois 61801, USA
Am Nat 165:70-81. 2005..Thus, synergy between two enemies can end disastrously for the host. Such diverse outcomes underscore the crucial importance of the community and ecosystem context in which host-parasite interactions occur...
- Molecular characterization of ribosomal intergenic spacer in the tadpole shrimp Triops cancriformis (Crustacea, Branchiopoda, Notostraca)Andrea Luchetti
Dipartimento di Biologia Evoluzionistica Sperimentale, Bologna, Italy
Genome 49:888-93. 2006..The putative external transcribed spacer (840 bp) shows hairpin structures, as in yeasts, protozoans, Drosophila, and vertebrates...
- Multi-generational effects of four selected environmental oestrogens on Daphnia magnaSarah J Brennan
Endocrine Disruption Group, School of Science, Athlone Institute of Technology, Athlone, Co. Westmeath, Ireland
Chemosphere 64:49-55. 2006..E2), diethylstilbestrol (DES), bisphenol A (BPA) and 4-nonylphenol (4-NP) on the freshwater invertebrate Daphnia magna were assessed over first and second generations...
- Isolation and absolute configuration determination of aliphatic sulfates as the Daphnia kairomones inducing morphological defense of a phytoplankton-part 2Ko Yasumoto
Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
Chem Pharm Bull (Tokyo) 56:129-32. 20084,8-Dimethylnonyl sulfate (1) and 3-methyl-4E-decenyl sulfate (2) were isolated from Daphnia pulex as the Daphnia kairomones that induced morphological defense of a freshwater phytoplankton Scenedesmus gutwinskii var...
- Acute toxicity of organic chemicals to Gammarus pulex correlates with sensitivity of Daphnia magna across most modes of actionRoman Ashauer
Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Dubendorf, Switzerland
Aquat Toxicol 103:38-45. 2011..Gammarus pulex towards organic xenobiotic compounds in comparison to the sensitivity of the crustacean cladoceran Daphnia magna...
- A quantitative test of the relationship between parasite dose and infection probability across different host-parasite combinationsFrida Ben-Ami
Zoologisches Institut, Evolutionsbiologie, Universitat Basel, Vesalgasse 1, 4051 Basel, Switzerland
Proc Biol Sci 275:853-9. 2008..the dose level of the bacterial endoparasite Pasteuria ramosa on the infection rate of its host, the water flea Daphnia magna...
- Extinction, recolonization, and dispersal through time in a planktonic crustaceanJoachim Mergeay
Laboratory of Aquatic Ecology, P O Box 02439, Katholieke Universiteit Leuven, Charles Deberiotstraat 32, 3000 Leuven, Belgium
Ecology 88:3032-43. 2007..lake sediment core in Kenya, we traced the genetic composition of a local population of the planktonic crustacean Daphnia barbata through a sequence of extinction and recolonization events...
- Stochastic resonance and the evolution of Daphnia foraging strategyNathan D Dees
Center for Neurodynamics, Department of Physics and Astronomy, University of Missouri at St Louis, St Louis, MO 63121, USA
Phys Biol 5:044001. 2008..Here, we investigate the role of noise in optimizing search strategies. We focus on the zooplankton Daphnia, which move in successive sequences consisting of a hop, a pause and a turn through an angle...
- Toxicity of ivermectin on cladocerans: comparison of toxic effects on Daphnia and Ceriodaphnia speciesChristelle Lopes
Universite de Lyon, F 69000, Lyon, France
Environ Toxicol Chem 28:2160-6. 2009..this, we compared the effects of ivermectin on the survival, growth, and reproduction of two cladoceran species (Daphnia magna and Ceriodaphnia dubia) and two strains of D. magna (one Japanese and one European)...
- Effect of pulse frequency and interval on the toxicity of chlorpyrifos to Daphnia magnaR B Naddy
Department of Environmental Toxicology and Clemson Institute of Environmental Toxicology, Clemson University, Pendleton, SC 29670, USA
Chemosphere 45:497-506. 2001..Studies were conducted with 7-day old Daphnia magna for 7 days to evaluate the effect of pulse frequency and interval among multiple CPF exposures...
- Responses of a bacterial pathogen to phosphorus limitation of its aquatic invertebrate hostPaul C Frost
Department of Biology, Trent University, Peterborough, Ontario K9J7B8 Canada
Ecology 89:313-8. 2008..bacterial microparasite Pasteuria ramosa is affected by the elemental nutrition of its aquatic invertebrate host, Daphnia magna...
- Evolutionary history of D-lactate dehydrogenases: a phylogenomic perspective on functional diversity in the FAD binding oxidoreductase/transferase type 4 familyMelania E Cristescu
University of Windsor, Great Lakes Institute for Environmental Research, Windsor, Ontario N9B 3P4, Canada
J Mol Evol 69:276-87. 2009..The present study demonstrates that structural phylogenomic approach can be used to resolve important evolutionary events in functionally diverse superfamilies and to provide reliable functional predictions to poorly characterized genes...
- Land use, genetic diversity and toxicant tolerance in natural populations of Daphnia magnaAnja Coors
Laboratory of Aquatic Ecology and Evolutionary Biology, Katholieke Universiteit Leuven, Ch De Beriotstraat 32, 3000 Leuven, Belgium
Aquat Toxicol 95:71-9. 2009..Using populations of Daphnia magna established from the dormant egg banks of ponds located in a landscape dominated by anthropogenic impact, ..
- Sensitivity of Daphnia species to phosphorus-deficient dietsBernd Seidendorf
Department of Ecology and Evolution, Institute for Ecology, Evolution and Diversity, Goethe University Frankfurt am Main, Siesmayerstrasse 70, 60054, Frankfurt am Main, Germany
Oecologia 162:349-57. 2010The life history of freshwater cladocerans such as Daphnia spp. is strongly affected by their environment...
- Acute and chronic effects of nano- and non-nano-scale TiO(2) and ZnO particles on mobility and reproduction of the freshwater invertebrate Daphnia magnaKarin 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--..
- Annotation, phylogenetics, and expression of the nuclear receptors in Daphnia pulexSusanne 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...
- Quantification of water solubilized CdSe/ZnS quantum dots in Daphnia magnaNastassja A Lewinski
Department of Bioengineering, Rice University, Houston, Texas, USA
Environ Sci Technol 44:1841-6. 2010The relative transparency of Daphnia magna (daphnia) and the unique optical properties of quantum dots (QDs) were paired to study the accumulation potential and surface coating effects on uptake of amphiphilic polymer coated CdSe/ZnS QDs...
- Turning inducible defenses on and off: adaptive responses of Daphnia to a gape-limited predatorHoward P Riessen
Department of Biology, SUNY College at Buffalo, 1300 Elmwood Avenue, Buffalo, New York 14222, USA
Ecology 90:3455-69. 2009..examine this model with respect to a model system of inducible defenses: neck spine induction in the water flea Daphnia in response to predatory larvae of the phantom midge Chaoborus...
- Effects of glyphosate and methidathion on the expression of the Dhb, Vtg, Arnt, CYP4 and CYP314 in Daphnia magnaThai Hoang Le
Department of Bioprocess Engineering, Chonbuk National University, 664 14 Duckjin dong, Jeonju 561 756, South Korea
Chemosphere 79:67-71. 2010..genes was quantified and analyzed using a semi-quantitative RT-PCR to study the changes in their expression in Daphnia magna after exposure to known pesticides, glyphosate and methidathion...
- Pesticide exposure and inducible antipredator responses in the zooplankton grazer, Daphnia magna StrausJoão L T Pestana
CESAM and Department of Biology, University of Aveiro, Campus Universitario de Santiago, 3810 193 Aveiro, Portugal
Chemosphere 78:241-8. 2010..Here, we study the effects of the pesticide imidacloprid on the responses of Daphnia magna to a combination of predator-release kairomones from trout and alarm cues from conspecifics, simulating ..
- Responses of alkaline phosphatase activity to phosphorus stress in Daphnia magnaS D S McCarthy
Department of Biology, Trent University, Peterborough, ON, Canada K9J 7B8
J Exp Biol 213:256-61. 2010..examined how alkaline phosphatase (AP) activity within the bodies and in the materials released by the crustacean Daphnia magna responds to variable algal food phosphorus (P)-content...
- Behavioural response of the cladoceran Daphnia magna STRAUS to sublethal Copper stress--validation by image analysisHubert Untersteiner
Institute of Zoology, University of Graz, Universitatsplatz 2, 8010 Graz, Austria
Aquat Toxicol 65:435-42. 2003In this study changes in the locomotory behaviour of the freshwater cladoceran Daphnia magna STRAUS were used as sublethal indicators of toxic copper (Cu) stress...
- Quantification of differentially expressed genes in Daphnia magna exposed to rubber wastewaterHun Je Jo
Division of Environmental Science and Ecological Engineering, Korea University, Anam Dong, Sungbuk Gu, Seoul 136 713, Republic of Korea
Chemosphere 73:261-6. 2008In this study, differentially expressed genes (DEGs) were investigated in Daphnia magna exposed to rubber wastewater using an annealing control primer (ACP)-based polymerase chain reaction (PCR) and real-time PCR...
- Acclimatory responses of the Daphnia pulex proteome to environmental changes. II. Chronic exposure to different temperatures (10 and 20 degrees C) mainly affects protein metabolismSusanne Schwerin
Institute of Zoophysiology, University of Munster, Munster, Germany
BMC Physiol 9:8. 2009..By using 2D gel electrophoresis and mass spectrometry, the present study identified the major elements of the temperature-induced subset of the proteome from differently acclimated Daphnia pulex.
- Daphnia need to be gut-cleared too: the effect of exposure to and ingestion of metal-contaminated sediment on the gut-clearance patterns of D. magnaP L Gillis
Department of Biology, McMaster University, 1280 Main Street West, Hamilton, Ont, Canada L8S 4K1
Aquat Toxicol 71:143-54. 2005The presence of sediment particles in the gut indicated that Daphnia magna used in whole-sediment bioassays ingest sediment...
- Effects of environmental contaminants on hemoglobin gene expression in Daphnia magna: a potential biomarker for freshwater quality monitoringMi Hee Ha
Environmental Engineering, University of Seoul, Seoul 130 743, Korea
Arch Environ Contam Toxicol 57:330-7. 2009b>Daphnia hemoglobin (Hb) is one of the widely investigated invertebrate respiratory pigment. In this study, alteration of Daphnia magna Hb was evaluated in terms of its gene expression, using four D...
- Genome-wide analysis of tandem repeats in Daphnia pulex--a comparative approachChristoph 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...
- Dispersion and toxicity of selected manufactured nanomaterials in natural river water samples: effects of water chemical compositionJie Gao
Department of Environmental Engineering Sciences, P O Box 116450, University of Florida Gainesville, Florida 32611, USA
Environ Sci Technol 43:3322-8. 2009....
- Evolution of repeated sequences in the ribosomal DNA intergenic spacer of 32 arthropod speciesCheryl D Ambrose
Department of Integrative Biology, University of Guelph, ON, Canada
J Mol Evol 70:247-59. 2010..Taken together, these data suggest that both drift and natural selection influence repeat evolution within the IGS...
- Ecological differentiation between coexisting sexual and asexual strains of Daphnia pulexMikko P Lehto
Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
J Anim Ecol 79:1241-50. 2010..ecological differentiation between asexual (obligate parthenogenetic) and sexual (cyclical parthenogenetic) Daphnia pulex in Southern Finland, where the two forms ('reproduction types') coexist regionally in a metapopulation...
- Aquatic ecotoxicity of a pheromonal antagonist in Daphnia magna and Desmodesmus subspicatusEsmeralda Rosa
Department of Biological Organic Chemistry, IIQAB (CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
Aquat Toxicol 79:296-303. 2006..Acute and sublethal toxicity tests of both compounds against the cladoceran Daphnia magna and the chlorophyte Desmodesmus subspicatus were conducted, the endpoints being immobilisation and feeding ..
- Toxicity and quantitative structure-activity relationships of nitriles based on Pseudokirchneriella subcapitataChun Pin Huang
Institute of Environmental Engineering, National Chiao Tung University, 75 Po Ai Street, Hsinchu, Taiwan 300, Taiwan
Ecotoxicol Environ Saf 67:439-46. 2007..subcapitata> Tetrahymena Pyriformis>Daphnia magna>luminescent bacteria (Microtox). The alga, P...
- Toxicity of fenamiphos and its metabolites to the cladoceran Daphnia carinata: the influence of microbial degradation in natural watersTanya Cáceres
Centre for Environmental Risk Assessment and Remediation CERAR, University of South Australia, Mawson Lakes Boulevard SA 5095, Australia
Chemosphere 66:1264-9. 2007..sulfone, fenamiphos phenol, fenamiphos sulfoxide phenol and fenamiphos sulfone phenol, to a cladoceran, Daphnia carinata was studied in both cladoceran culture medium and natural water collected from a local river...
- Interspecies correlation estimates predict protective environmental concentrationsScott D Dyer
The Procter and Gamble Company, 11810 East Miami River Road, Cincinnati, Ohio 45253 8707, USA
Environ Sci Technol 40:3102-11. 2006..values for three surrogate species Pimephales promelas (Fathead minnow), Onchorynchus mykiss (Rainbow trout), and Daphnia magna (water flea)...
- Influences of macroalga-derived dissolved organic carbon on the aquatic toxicity of copper and cadmiumMartin T K Tsui
Croucher Institute for Environmental Sciences and Department of Biology, Hong Kong Baptist University, 224 Waterloo Road, Kowloon Tong, Kowloon, Hong Kong SAR, PR China
Chemosphere 65:1831-5. 2006..from macroalga (Sargassum) on the acute toxicity of copper (Cu) and cadmium (Cd) to a freshwater cladoceran (Daphnia magna) was investigated...
- Effects of environmental contamination on gene copy number variation: Molecular bJoseph Shaw; Fiscal Year: 2010..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 ..
- Daphnia DNA MicroarraysOwen Hughes; Fiscal Year: 2002..Specifically, in this Phase I work we will construct a pilot array for Daphnia pulex...
- Daphnia Functional Genomics ResourceMICHAEL PFRENDER; Fiscal Year: 2007..b>Daphnia is a logical candidate study system for further development to fill this gap...
- MASS SPECTRAL SEQUENCING OF CARBOHYDRATESVernon Reinhold; Fiscal Year: 2007..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 ..
- MASS SPECTRAL SEQUENCING OF CARBOHYDRATESVernon 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 ..
- Fathead minnow DNA microarraysOwen 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.
- Induction of breast cancer in MMTVneu miceWilliam 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. ..
- Genomic search for bone mass QTLsHong 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. ..
- The Rate and Molecular Spectrum of Spontaneous MutationsMichael Lynch; Fiscal Year: 2009..four model systems: the yeast Saccharomyces cerevisiae, the nematode Caenorhabditis elegans, the microcrustacean Daphnia pulex, and the ciliate Paramecium tetraurelia...
- NEURAL CONTROL OF SENSORY ACQUISITIONMark Nelson; Fiscal Year: 2000..This research is intended to lead to a better understanding of general principles of sensory acquisition that enable animals, including humans, to efficiently obtain and process information about their environment. ..
- Genomic search for bone mass QTLsHong Wen Deng; Fiscal Year: 2009..This knowledge is essential for the development of preventive interventions and/or cures for osteoporosis that may be based on individuals' specific genotypes. ..
- The Rate and Molecular Spectrum of Spontaneous MutationsMichael Lynch; Fiscal Year: 2007..four model systems: the yeast Saccharomyces cerevisiae, the nematode Caenorhabditis elegans, the microcrustacean Daphnia pulex, and the ciliate Paramecium tetraurelia...
- Characterization and genetic analysis of aging in DaphniaJeffry L Dudycha; Fiscal Year: 2010This project will develop the microcrustacean Daphnia as a model system for the biology of aging...
- ROBUST AND POWERFUL TEST OF CANDIDATE GENES TO BONE MASSHong Wen Deng; Fiscal Year: 2010....
- Identification of Proteins Important for Male OsteoporosisHong Wen Deng; Fiscal Year: 2010..This project aims to identify proteins that are important to male osteoporosis. The findings will provide essential scientific basis for effective prevention, diagnosis and treatment of the disease. ..
- The Rate and Molecular Spectrum of Spontaneous MutationsMichael Lynch; Fiscal Year: 2009..four model systems: the yeast Saccharomyces cerevisiae, the nematode Caenorhabditis elegans, the microcrustacean Daphnia pulex, and the ciliate Paramecium tetraurelia...
- Identification of Proteins Important for Male OsteoporosisHong Wen Deng; Fiscal Year: 2009..This project aims to identify proteins that are important to male osteoporosis. The findings will provide essential scientific basis for effective prevention, diagnosis and treatment of the disease. ..
- NEURAL CONTROL OF SENSORY ACQUISITIONMark 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. ..
- Directory and Information System components for genomesDonald 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. ..
- Genetic Basis of Osteoporotic Fractures and Bone MassHong 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. ..
- CHARACTERIZATION OF DELETERIOUS GENOMIC MUTATIONSHong Wen Deng; Fiscal Year: 2005..abstract_text> ..
- Proteomics Study of Peripheral Blood Monocytes on OsteoporosisHong Wen Deng; Fiscal Year: 2007....
- ROBUST AND POWERFUL TEST OF CANDIDATE GENES TO BONE MASSHong Wen Deng; Fiscal Year: 2007..Our proposed study is comprehensive and our statistical genetic analyses show that our study is of very high power and may identify a quantitative trait locus (QTL) with a heritability (h2) as low as 0.05 with a power of > 90%. ..
- Genomic search for bone mass QTLsHong Wen Deng; Fiscal Year: 2007..This knowledge is essential for the development of preventive interventions and/or cures for osteoporosis that may be based on individuals' specific genotypes. ..