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Your search keyword '"Megy, Karine"' showing total 5 results
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5 results on '"Megy, Karine"'

1. Genomic insights into the Ixodes scapularis tick vector of Lyme disease.

Author

Gulia-Nuss M, Nuss AB, Meyer JM, Sonenshine DE, Roe RM, Waterhouse RM, Sattelle DB, de la Fuente J, Ribeiro JM, Megy K, Thimmapuram J, Miller JR, Walenz BP, Koren S, Hostetler JB, Thiagarajan M, Joardar VS, Hannick LI, Bidwell S, Hammond MP, Young S, Zeng Q, Abrudan JL, Almeida FC, Ayllón N, Bhide K, Bissinger BW, Bonzon-Kulichenko E, Buckingham SD, Caffrey DR, Caimano MJ, Croset V, Driscoll T, Gilbert D, Gillespie JJ, Giraldo-Calderón GI, Grabowski JM, Jiang D, Khalil SMS, Kim D, Kocan KM, Koči J, Kuhn RJ, Kurtti TJ, Lees K, Lang EG, Kennedy RC, Kwon H, Perera R, Qi Y, Radolf JD, Sakamoto JM, Sánchez-Gracia A, Severo MS, Silverman N, Šimo L, Tojo M, Tornador C, Van Zee JP, Vázquez J, Vieira FG, Villar M, Wespiser AR, Yang Y, Zhu J, Arensburger P, Pietrantonio PV, Barker SC, Shao R, Zdobnov EM, Hauser F, Grimmelikhuijzen CJP, Park Y, Rozas J, Benton R, Pedra JHF, Nelson DR, Unger MF, Tubio JMC, Tu Z, Robertson HM, Shumway M, Sutton G, Wortman JR, Lawson D, Wikel SK, Nene VM, Fraser CM, Collins FH, Birren B, Nelson KE, Caler E, and Hill CA

Subjects
Animals, Gene Expression Profiling, Genomics, Lyme Disease transmission, Oocytes, Xenopus laevis, Anaplasma phagocytophilum, Arachnid Vectors genetics, Genome genetics, Ixodes genetics, Ligand-Gated Ion Channels genetics
Abstract

Ticks transmit more pathogens to humans and animals than any other arthropod. We describe the 2.1 Gbp nuclear genome of the tick, Ixodes scapularis (Say), which vectors pathogens that cause Lyme disease, human granulocytic anaplasmosis, babesiosis and other diseases. The large genome reflects accumulation of repetitive DNA, new lineages of retro-transposons, and gene architecture patterns resembling ancient metazoans rather than pancrustaceans. Annotation of scaffolds representing ∼57% of the genome, reveals 20,486 protein-coding genes and expansions of gene families associated with tick-host interactions. We report insights from genome analyses into parasitic processes unique to ticks, including host 'questing', prolonged feeding, cuticle synthesis, blood meal concentration, novel methods of haemoglobin digestion, haem detoxification, vitellogenesis and prolonged off-host survival. We identify proteins associated with the agent of human granulocytic anaplasmosis, an emerging disease, and the encephalitis-causing Langat virus, and a population structure correlated to life-history traits and transmission of the Lyme disease agent.

Published
2016
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2. Sequencing of Culex quinquefasciatus establishes a platform for mosquito comparative genomics.

Author

Arensburger P, Megy K, Waterhouse RM, Abrudan J, Amedeo P, Antelo B, Bartholomay L, Bidwell S, Caler E, Camara F, Campbell CL, Campbell KS, Casola C, Castro MT, Chandramouliswaran I, Chapman SB, Christley S, Costas J, Eisenstadt E, Feschotte C, Fraser-Liggett C, Guigo R, Haas B, Hammond M, Hansson BS, Hemingway J, Hill SR, Howarth C, Ignell R, Kennedy RC, Kodira CD, Lobo NF, Mao C, Mayhew G, Michel K, Mori A, Liu N, Naveira H, Nene V, Nguyen N, Pearson MD, Pritham EJ, Puiu D, Qi Y, Ranson H, Ribeiro JM, Roberston HM, Severson DW, Shumway M, Stanke M, Strausberg RL, Sun C, Sutton G, Tu ZJ, Tubio JM, Unger MF, Vanlandingham DL, Vilella AJ, White O, White JR, Wondji CS, Wortman J, Zdobnov EM, Birren B, Christensen BM, Collins FH, Cornel A, Dimopoulos G, Hannick LI, Higgs S, Lanzaro GC, Lawson D, Lee NH, Muskavitch MA, Raikhel AS, and Atkinson PW

Subjects
Aedes genetics, Animals, Anopheles genetics, Chromosome Mapping, Culex classification, Culex physiology, DNA Transposable Elements, Insect Proteins genetics, Insect Proteins physiology, Insect Vectors genetics, Molecular Sequence Data, Multigene Family, Phylogeny, Receptors, Odorant genetics, Retroelements, Chromosomes genetics, Culex genetics, Genes, Insect, Genome, Sequence Analysis, DNA
Abstract

Culex quinquefasciatus (the southern house mosquito) is an important mosquito vector of viruses such as West Nile virus and St. Louis encephalitis virus, as well as of nematodes that cause lymphatic filariasis. C. quinquefasciatus is one species within the Culex pipiens species complex and can be found throughout tropical and temperate climates of the world. The ability of C. quinquefasciatus to take blood meals from birds, livestock, and humans contributes to its ability to vector pathogens between species. Here, we describe the genomic sequence of C. quinquefasciatus: Its repertoire of 18,883 protein-coding genes is 22% larger than that of Aedes aegypti and 52% larger than that of Anopheles gambiae with multiple gene-family expansions, including olfactory and gustatory receptors, salivary gland genes, and genes associated with xenobiotic detoxification.

Published
2010
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3. VectorBase: improvements to a bioinformatics resource for invertebrate vector genomics.

Author

Megy, Karine, Emrich, Scott J, Lawson, Daniel, Campbell, David, Dialynas, Emmanuel, Hughes, Daniel ST, Koscielny, Gautier, Louis, Christos, Maccallum, Robert M, Redmond, Seth N, Sheehan, Andrew, Topalis, Pantelis, Wilson, Derek, and VectorBase Consortium

Subjects
VectorBase Consortium, Animals, Ixodes, Culicidae, Tsetse Flies, Rhodnius, Pediculus, Genomics, Insect Vectors, Insecticide Resistance, Databases, Genetic, Genome, Insect, Genetic Variation, Databases, Genetic, Genome, Insect, Environmental Sciences, Biological Sciences, Information and Computing Sciences, Developmental Biology
Abstract

VectorBase (http://www.vectorbase.org) is a NIAID-supported bioinformatics resource for invertebrate vectors of human pathogens. It hosts data for nine genomes: mosquitoes (three Anopheles gambiae genomes, Aedes aegypti and Culex quinquefasciatus), tick (Ixodes scapularis), body louse (Pediculus humanus), kissing bug (Rhodnius prolixus) and tsetse fly (Glossina morsitans). Hosted data range from genomic features and expression data to population genetics and ontologies. We describe improvements and integration of new data that expand our taxonomic coverage. Releases are bi-monthly and include the delivery of preliminary data for emerging genomes. Frequent updates of the genome browser provide VectorBase users with increasing options for visualizing their own high-throughput data. One major development is a new population biology resource for storing genomic variations, insecticide resistance data and their associated metadata. It takes advantage of improved ontologies and controlled vocabularies. Combined, these new features ensure timely release of multiple types of data in the public domain while helping overcome the bottlenecks of bioinformatics and annotation by engaging with our user community.

Published
2012

4. Genome of Rhodnius prolixus, an insect vector of Chagas disease, reveals unique adaptations to hematophagy and parasite infection

Author

Mesquita, Rafael D., Vionette-Amaral, Raquel J., Lowenberger, Carl, Rivera-Pomar, Rolando, Monteiro, Fernando A., Minx, Patrick, Spieth, John, Carvalho, A. Bernardo, Panzera, Francisco, Lawson, Daniel, Torres, André Q., Ribeiro, Jose M. C., Sorgine, Marcos H. F., Waterhouse, Robert M., Montague, Michael J., Abad-Franch, Fernando, Alves-Bezerra, Michele, Amaral, Laurence R., Araujo, Helena M., Araujo, Ricardo N., Aravind, L., Atella, Georgia C., Azambuja, Patricia, Berni, Mateus, Bittencourt-Cunha, Paula R., Braz, Gloria R. C., Calderón-Fernández, Gustavo, Carareto, Claudia M. A., Christensen, Mikkel B., Costa, Igor R., Costa, Samara G., Dansa, Marilvia, Daumas-Filho, Carlos R. O., De-Paula, Iron F., Dias, Felipe A., Dimopoulos, George, Emrich, Scott J., Esponda-Behrens, Natalia, Fampa, Patricia, Fernandez-Medina, Rita D., da Fonseca, Rodrigo N., Fontenele, Marcio, Fronick, Catrina, Fulton, Lucinda A., Gandara, Ana Caroline, Garcia, Eloi S., Genta, Fernando A., Giraldo-Calderón, Gloria I., Gomes, Bruno, Gondim, Katia C., Granzotto, Adriana, Guarneri, Alessandra A., Guigó, Roderic, Harry, Myriam, Hughes, Daniel S. T., Jablonka, Willy, Jacquin-Joly, Emmanuelle, Juárez, M. Patricia, Koerich, Leonardo B., Lange, Angela B., Latorre-Estivalis, José Manuel, Lavore, Andrés, Lawrence, Gena G., Lazoski, Cristiano, Lazzari, Claudio R., Lopes, Raphael R., Lorenzo, Marcelo G., Lugon, Magda D., Majerowicz, David, Marcet, Paula L., Mariotti, Marco, Masuda, Hatisaburo, Megy, Karine, Melo, Ana C. A., Missirlis, Fanis, Mota, Theo, Noriega, Fernando G., Nouzova, Marcela, Nunes, Rodrigo D., Oliveira, Raquel L. L., Oliveira-Silveira, Gilbert, Ons, Sheila, Orchard, Ian, Pagola, Lucia, Paiva-Silva, Gabriela O., Pascual, Agustina, Pavan, Marcio G., Pedrini, Nicolás, Peixoto, Alexandre A., Pereira, Marcos H., Pike, Andrew, Polycarpo, Carla, Prosdocimi, Francisco, Ribeiro-Rodrigues, Rodrigo, Robertson, Hugh M., Salerno, Ana Paula, Salmon, Didier, Santesmasses, Didac, Schama, Renata, Seabra-Junior, Eloy S., Silva-Cardoso, Livia, Silva-Neto, Mario A. C., Souza-Gomes, Matheus, Sterkel, Marcos, Taracena, Mabel L., Tojo, Marta, Tu, Zhijian Jake, Tubio, Jose M. C., Ursic-Bedoya, Raul, Venancio, Thiago M., Walter-Nuno, Ana Beatriz, Wilson, Derek, Warren, Wesley C., Wilson, Richard K., Huebner, Erwin, Dotson, Ellen M., and Oliveira, Pedro L.

Published
2015

5. Erratum to :'Genome of Rhodnius prolixus, an insect vector of Chagas disease, reveals unique adaptations to hematophagy and parasite infection' (vol 112, pg 14936, 2015)

Author

Lowenberger, Carl, Rivera Pomar, Rolando, Monteiro, Fernando A., Minx, Patrick, Spieth, John, Bernardo Carvalho, A., Panzera, Francisco, Lawson, Daniel, Torres, Andre Q., Ribeiro, Jose M. C., Sorgine, Marcos H. F., Waterhouse, Robert M., Montague, Michael J., Abad Franch, Fernando, Alves Bezerra, Michele, Amaral, Laurence R., Araujo, Helena M., Araujo, Ricardo N., Aravind, L., Atella, Georgia C., Azambuja, Patricia, Berni, Mateus, Bittencourt Cunha, Paula R., Braz, Gloria R. C., Calderon Fernandez, Gustavo, Carareto, Claudia M. A., Christensen, Mikkel B., Costa, Igor R., Costa, Samara G., Dansa, Marilvia, Daumas Filho, Carlos R. O., De Paula, Iron F., Dias, Felipe A., Dimopoulos, George, Emrich, Scott J., Esponda Behrens, Natalia, Fampa, Patricia, Fernandez Medina, Rita D., da Fonseca, Rodrigo N., Fontenele, Marcio, Fronick, Catrina, Fulton, Lucinda A., Gandara, Ana Caroline, Garcia, Eloi S., Genta, Fernando A., Giraldo Calderón, Gloria I., Gomes, Bruno, Gondim, Katia C., Granzotto, Adriana, Guarneri, Alessandra A., Guigó, Roderic, Harry, Myriam, Hughes, Daniel S. T., Jablonka, Willy, Jacquin Joly, Emmanuelle, Patricia Juarez, M., Koerich, Leonardo B., Latorre Estivalis, Jose Manuel, Lavore, Andrés, Lawrence, Gena G., Lazoski, Cristiano, Lazzari, Claudio R., Lopes, Raphael R., Lorenzo, Marcelo G., Lugon, Magda D., Majerowicz, David, Marcet, Paula L., Mariotti, Marco, Masuda, Hatisaburo, Megy, Karine, Melo, Ana C.A., Missirlis, Fanis, Mota, Theo, Noriega, Fernando G., Nouzova, Marcela, Nunes, Rodrigo D., Oliveira, Raquel L.L., Oliveira Silveira, Gilbert, Ons, Sheila, Pagola, Lucia, Paiva Silva, Gabriela O., Pascual, Agustina, Pavan, Marcio G., Pedrini, Nicolas, Peixoto, Alexandre A., Pereira, Marcos H., Pike, Andrew, Polycarpo, Carla, Prosdocimi, Francisco, Ribeiro Rodrigues, Rodrigo, Robertson, Hugh M., Salerno, Ana Paula, Salmon, Didier, Santesmasses, Didac, Schama, Renata, Seabra Junior, Eloy S., Silva Cardoso, Livia, Mesquita, Rafael D., and Vionette Amaral, Raquel J.

Subjects
rhodnius prolixus, Rhodnius prolixus, genome, hematophagy, immunity, Chagas disease, maladie de chagas
Abstract

Rhodnius prolixus not only has served as a model organism for the study of insect physiology, but also is a major vector of Chagas disease, an illness that affects approximately seven million people worldwide. We sequenced the genome of R. prolixus, generated assembled sequences covering 95% of the genome (similar to 702 Mb), including 15,456 putative protein-coding genes, and completed comprehensive genomic analyses of this obligate blood-feeding insect. Although immune-deficiency (IMD)-mediated immune responses were observed, R. prolixus putatively lacks key components of the IMD pathway, suggesting a reorganization of the canonical immune signaling network. Although both Toll and IMD effectors controlled intestinal microbiota, neither affected Trypanosoma cruzi, the causal agent of Chagas disease, implying the existence of evasion or tolerance mechanisms. R. prolixus has experienced an extensive loss of selenoprotein genes, with its repertoire reduced to only two proteins, one of which is a selenocysteine-based glutathione peroxidase, the first found in insects. The genome contained actively transcribed, horizontally transferred genes from Wolbachia sp., which showed evidence of codon use evolution toward the insect use pattern. Comparative protein analyses revealed many lineage-specific expansions and putative gene absences in R. prolixus, including tandem expansions of genes related to chemoreception, feeding, and digestion that possibly contributed to the evolution of a blood-feeding lifestyle. The genome assembly and these associated analyses provide critical information on the physiology and evolution of this important vector species and should be instrumental for the development of innovative disease control methods.

Published
2016

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