1
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Cosme LV, Corley M, Johnson T, Severson DW, Yan G, Wang X, Beebe N, Maynard A, Bonizzoni M, Khorramnejad A, Martins AJ, Lima JBP, Munstermann LE, Surendran SN, Chen CH, Maringer K, Wahid I, Mukherjee S, Xu J, Fontaine MC, Estallo EL, Stein M, Livdahl T, Scaraffia PY, Carter BH, Mogi M, Tuno N, Mains JW, Medley KA, Bowles DE, Gill RJ, Eritja R, González-Obando R, Trang HTT, Boyer S, Abunyewa AM, Hackett K, Wu T, Nguyễn J, Shen J, Zhao H, Crawford JE, Armbruster P, Caccone A. A genotyping array for the globally invasive vector mosquito, Aedes albopictus. Parasit Vectors 2024; 17:106. [PMID: 38439081 PMCID: PMC10910840 DOI: 10.1186/s13071-024-06158-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 01/24/2024] [Indexed: 03/06/2024] Open
Abstract
BACKGROUND Although whole-genome sequencing (WGS) is the preferred genotyping method for most genomic analyses, limitations are often experienced when studying genomes characterized by a high percentage of repetitive elements, high linkage, and recombination deserts. The Asian tiger mosquito (Aedes albopictus), for example, has a genome comprising up to 72% repetitive elements, and therefore we set out to develop a single-nucleotide polymorphism (SNP) chip to be more cost-effective. Aedes albopictus is an invasive species originating from Southeast Asia that has recently spread around the world and is a vector for many human diseases. Developing an accessible genotyping platform is essential in advancing biological control methods and understanding the population dynamics of this pest species, with significant implications for public health. METHODS We designed a SNP chip for Ae. albopictus (Aealbo chip) based on approximately 2.7 million SNPs identified using WGS data from 819 worldwide samples. We validated the chip using laboratory single-pair crosses, comparing technical replicates, and comparing genotypes of samples genotyped by WGS and the SNP chip. We then used the chip for a population genomic analysis of 237 samples from 28 sites in the native range to evaluate its usefulness in describing patterns of genomic variation and tracing the origins of invasions. RESULTS Probes on the Aealbo chip targeted 175,396 SNPs in coding and non-coding regions across all three chromosomes, with a density of 102 SNPs per 1 Mb window, and at least one SNP in each of the 17,461 protein-coding genes. Overall, 70% of the probes captured the genetic variation. Segregation analysis found that 98% of the SNPs followed expectations of single-copy Mendelian genes. Comparisons with WGS indicated that sites with genotype disagreements were mostly heterozygotes at loci with WGS read depth < 20, while there was near complete agreement with WGS read depths > 20, indicating that the chip more accurately detects heterozygotes than low-coverage WGS. Sample sizes did not affect the accuracy of the SNP chip genotype calls. Ancestry analyses identified four to five genetic clusters in the native range with various levels of admixture. CONCLUSIONS The Aealbo chip is highly accurate, is concordant with genotypes from WGS with high sequence coverage, and may be more accurate than low-coverage WGS.
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Affiliation(s)
- Luciano Veiga Cosme
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, 06520-8105, USA.
| | - Margaret Corley
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, 06520-8105, USA
| | - Thomas Johnson
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, 06520-8105, USA
| | - Dave W Severson
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, USA
| | - Guiyun Yan
- Department of Population Health and Disease Prevention, University of California, Irvine, CA, USA
| | - Xiaoming Wang
- Department of Population Health and Disease Prevention, University of California, Irvine, CA, USA
| | - Nigel Beebe
- School of the Environment, University of Queensland Australia, St Lucia, Australia
| | - Andrew Maynard
- School of the Environment, University of Queensland Australia, St Lucia, Australia
| | - Mariangela Bonizzoni
- Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, Pavia, Italy
| | - Ayda Khorramnejad
- Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, Pavia, Italy
| | - Ademir Jesus Martins
- Laboratório de Fisiologia e Controle de Artrópodes Vetores, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, RJ, Brazil
| | - José Bento Pereira Lima
- Laboratório de Fisiologia e Controle de Artrópodes Vetores, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, RJ, Brazil
| | - Leonard E Munstermann
- Yale School of Public Health and Yale Peabody Museum, Yale University, New Haven, CT, USA
| | | | - Chun-Hong Chen
- National Health Research Institutes, National Mosquito-Borne Disease Control Research Center & National Institute of Infectious Diseases and Vaccinology, Miaoli, Taiwan
| | | | - Isra Wahid
- Center for Zoonotic and Emerging Diseases, Hasanuddin University Medical Research Centre (HUMRC), Makassar, Indonesia
| | - Shomen Mukherjee
- Mitrani Department of Desert Ecology, Jacob Blaustein Institutes of Desert Research, Ben-Gurion University of the Negev, Midreshet Ben-Gurion, Israel
- Biological and Life Sciences Division, School of Arts and Sciences, Ahmedabad University, Ahmedabad, Gujarat, India
| | - Jiannon Xu
- Department of Biology, New Mexico State University, Las Cruces, NM, USA
| | - Michael C Fontaine
- MIVEGEC, Université de Montpellier, CNRS, IRD, Montpellier, France
- University of Groningen, Groningen Institute for Evolutionary Life Sciences, Groningen, The Netherlands
| | - Elizabet L Estallo
- Facultad de Ciencias Exactas, Físicas y Naturales, Centro de Investigaciones Entomológicas de Córdoba, Universidad Nacional de Córdoba, Córdoba, Argentina
- Instituto de Investigaciones Biológicas y Tecnológicas, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Marina Stein
- Instituto de Medicina Regional, Universidad Nacional del Nordeste, CONICET CCT Nordeste, Resistencia, Argentina
| | | | - Patricia Y Scaraffia
- School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA, USA
| | - Brendan H Carter
- School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA, USA
| | - Motoyoshi Mogi
- Division of Parasitology, Faculty of Medicine, Saga University, Nabeshima, Saga, Japan
| | - Nobuko Tuno
- Laboratory of Ecology, Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Japan
| | | | - Kim A Medley
- Tyson Research Center, Washington University in St. Louis, St. Louis, USA
| | | | - Richard J Gill
- Department of Life Sciences, Georgina Mace Centre for the Living Planet, Imperial College London, Berkshire, UK
| | - Roger Eritja
- Centre d'Estudis Avançats de Blanes, Consejo Superior de Investigaciones Científicas, Blanes, Spain
| | | | - Huynh T T Trang
- Department of Medical Entomology and Zoonotics, Pasteur Institute in Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Sébastien Boyer
- Medical Entomology Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Ann-Marie Abunyewa
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, 06520-8105, USA
| | - Kayleigh Hackett
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, 06520-8105, USA
| | - Tina Wu
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, 06520-8105, USA
| | - Justin Nguyễn
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, 06520-8105, USA
| | - Jiangnan Shen
- Department of Biostatistics, Yale School of Public Health, New Haven, CT, 06510, USA
| | - Hongyu Zhao
- Department of Biostatistics, Yale School of Public Health, New Haven, CT, 06510, USA
- Department of Genetics, Yale University School of Medicine, New Haven, CT, 06510, USA
| | | | - Peter Armbruster
- Department of Biology, Georgetown University, Washington, DC, USA
| | - Adalgisa Caccone
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, 06520-8105, USA
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2
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Gallant AT, Scielzo ND, Savard G, Clark JA, Brodeur M, Buchinger F, Burdette DP, Burkey MT, Caldwell S, Crawford JE, Czeszumska A, Deibel CM, Greene J, Heslop D, Hirsh TY, Levand AF, Longfellow B, Morgan GE, Mueller P, Orford R, Padgett S, Paul N, Galván AP, Reimer A, Segel R, Sharma KS, Siegl K, Varriano L, Zabransky BJ. Angular Correlations in the β Decay of ^{8}B: First Tensor-Current Limits from a Mirror-Nucleus Pair. Phys Rev Lett 2023; 130:192502. [PMID: 37243659 DOI: 10.1103/physrevlett.130.192502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 01/09/2023] [Accepted: 04/03/2023] [Indexed: 05/29/2023]
Abstract
We present the first measurement of the α-β-ν angular correlation in the Gamow-Teller β^{+} decay of ^{8}B. This was accomplished using the Beta-decay Paul Trap, expanding on our previous work on the β^{-} decay of ^{8}Li. The ^{8}B result is consistent with the V-A electroweak interaction of the standard model and, on its own, provides a limit on the exotic right-handed tensor current relative to the axial-vector current of |C_{T}/C_{A}|^{2}<0.013 at the 95.5% confidence level. This represents the first high-precision angular correlation measurements in mirror decays and was made possible through the use of an ion trap. By combining this ^{8}B result with our previous ^{8}Li results, we demonstrate a new pathway for increased precision in searches for exotic currents.
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Affiliation(s)
- A T Gallant
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - N D Scielzo
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - G Savard
- Department of Physics, University of Chicago, Chicago, Illinois 60637, USA
- Argonne National Laboratory, Physics Division, Argonne, Illinois 60439, USA
| | - J A Clark
- Argonne National Laboratory, Physics Division, Argonne, Illinois 60439, USA
| | - M Brodeur
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - F Buchinger
- Department of Physics, McGill University, Montréal, Québec H3A 2T8, Canada
| | - D P Burdette
- Argonne National Laboratory, Physics Division, Argonne, Illinois 60439, USA
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - M T Burkey
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
- Department of Physics, University of Chicago, Chicago, Illinois 60637, USA
- Argonne National Laboratory, Physics Division, Argonne, Illinois 60439, USA
| | - S Caldwell
- Department of Physics, University of Chicago, Chicago, Illinois 60637, USA
- Argonne National Laboratory, Physics Division, Argonne, Illinois 60439, USA
- Department of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
| | - J E Crawford
- Department of Physics, McGill University, Montréal, Québec H3A 2T8, Canada
| | - A Czeszumska
- Department of Nuclear Engineering, University of California, Berkeley, California 94720, USA
| | - C M Deibel
- Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA
- Joint Institute for Nuclear Astrophysics, Michigan State University, East Lansing, Michigan 48824, USA
| | - J Greene
- Argonne National Laboratory, Physics Division, Argonne, Illinois 60439, USA
| | - D Heslop
- Department of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
| | - T Y Hirsh
- Soreq Nuclear Research Center, Yavne 81800, Israel
| | - A F Levand
- Argonne National Laboratory, Physics Division, Argonne, Illinois 60439, USA
| | - B Longfellow
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - G E Morgan
- Department of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
| | - P Mueller
- Argonne National Laboratory, Physics Division, Argonne, Illinois 60439, USA
| | - R Orford
- Argonne National Laboratory, Physics Division, Argonne, Illinois 60439, USA
- Department of Physics, McGill University, Montréal, Québec H3A 2T8, Canada
| | - S Padgett
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - N Paul
- Physics Department, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - A Pérez Galván
- Argonne National Laboratory, Physics Division, Argonne, Illinois 60439, USA
| | - A Reimer
- Department of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
| | - R Segel
- Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA
| | - K S Sharma
- Department of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
| | - K Siegl
- Physics Department, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - L Varriano
- Department of Physics, University of Chicago, Chicago, Illinois 60637, USA
- Argonne National Laboratory, Physics Division, Argonne, Illinois 60439, USA
| | - B J Zabransky
- Argonne National Laboratory, Physics Division, Argonne, Illinois 60439, USA
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3
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Rose NH, Badolo A, Sylla M, Akorli J, Otoo S, Gloria-Soria A, Powell JR, White BJ, Crawford JE, McBride CS. Dating the origin and spread of specialization on human hosts in Aedes aegypti mosquitoes. eLife 2023; 12:83524. [PMID: 36897062 PMCID: PMC10038657 DOI: 10.7554/elife.83524] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 03/10/2023] [Indexed: 03/11/2023] Open
Abstract
The globally invasive mosquito subspecies Aedes aegypti aegypti is an effective vector of human arboviruses, in part because it specializes in biting humans and breeding in human habitats. Recent work suggests that specialization first arose as an adaptation to long, hot dry seasons in the West African Sahel, where Ae. aegypti relies on human-stored water for breeding. Here, we use whole-genome cross-coalescent analysis to date the emergence of human-specialist populationsand thus further probe the climate hypothesis. Importantly, we take advantage of the known migration of specialists out of Africa during the Atlantic Slave Trade to calibrate the coalescent clock and thus obtain a more precise estimate of the older evolutionary event than would otherwise be possible. We find that human-specialist mosquitoes diverged rapidly from ecological generalists approximately 5000 years ago, at the end of the African Humid Period-a time when the Sahara dried and water stored by humans became a uniquely stable, aquatic niche in the Sahel. We also use population genomic analyses to date a previously observed influx of human-specialist alleles into major West African cities. The characteristic length of tracts of human-specialist ancestry present on a generalist genetic background in Kumasi and Ouagadougou suggests the change in behavior occurred during rapid urbanization over the last 20-40 years. Taken together, we show that the timing and ecological context of two previously observed shifts towards human biting in Ae. aegypti differ; climate was likely the original driver, but urbanization has become increasingly important in recent decades.
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Affiliation(s)
- Noah H Rose
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, United States
- Princeton Neuroscience Institute, Princeton University, Princeton, United States
| | - Athanase Badolo
- Laboratory of Fundamental and Applied Entomology, Université Joseph Ki-Zerbo, Ouagadougou, Burkina Faso
| | - Massamba Sylla
- Department of Livestock Sciences and Techniques, Sine Saloum University El Hadji Ibrahima NIASS, Kaffrine, Senegal
| | - Jewelna Akorli
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, University of Ghana, Accra, Ghana
| | - Sampson Otoo
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, University of Ghana, Accra, Ghana
| | - Andrea Gloria-Soria
- Department of Entomology. Center for Vector Biology & Zoonotic Diseases. The Connecticut Agricultural Experiment Station, New Haven, United States
| | | | | | | | - Carolyn S McBride
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, United States
- Princeton Neuroscience Institute, Princeton University, Princeton, United States
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4
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Crawford JE, Hopkins KC, Buchman A, Zha T, Howell P, Kakani E, Ohm JR, Snoad N, Upson L, Holeman J, Massaro P, Dobson SL, Mulligan FS, White BJ. Reply to: Assessing the efficiency of Verily's automated process for production and release of male Wolbachia-infected mosquitoes. Nat Biotechnol 2022; 40:1443-1446. [PMID: 35618925 DOI: 10.1038/s41587-022-01325-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 04/18/2022] [Indexed: 11/09/2022]
Affiliation(s)
| | | | - Anna Buchman
- Verily Life Sciences, South San Francisco, CA, USA
| | - Tiantian Zha
- Verily Life Sciences, South San Francisco, CA, USA
| | - Paul Howell
- Verily Life Sciences, South San Francisco, CA, USA
| | | | | | - Nigel Snoad
- Verily Life Sciences, South San Francisco, CA, USA
| | - Linus Upson
- Verily Life Sciences, South San Francisco, CA, USA
| | - Jodi Holeman
- Consolidated Mosquito Abatement District, Parlier, CA, USA
| | | | - Stephen L Dobson
- MosquitoMate Inc., Lexington, KY, USA.,Department of Entomology, University of Kentucky, Lexington, KY, USA
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5
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Staunton KM, Goi J, Townsend M, Ritchie SA, Crawford JE, Snoad N, Karl S, Burkot TR. Effect of BG-Lures on the Male Aedes (Diptera: Culicidae) Sound Trap Capture Rates. J Med Entomol 2021; 58:2425-2431. [PMID: 34240181 PMCID: PMC8577766 DOI: 10.1093/jme/tjab121] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Indexed: 06/13/2023]
Abstract
With global expansion of the two main vectors of dengue, Aedes aegypti (Linnaeus, Diptera: Culicidae) and Aedes albopictus (Skuse, Diptera: Culicidae), there is a need to further develop cost-effective and user-friendly surveillance tools to monitor the population dynamics of these species. The abundance of Ae. aegypti and Ae. Albopictus, and associated bycatch captured by Male Aedes Sound Traps (MASTs) and BG-Sentinel (BGS) traps that were unbaited or baited with BG-Lures were compared in Cairns, Australia and Madang, Papua New Guinea. Mean male Ae. aegypti and Ae. albopictus catch rates in MASTs did not significantly differ when deployed with BG-Lures. Similarly, males of both these species were not sampled at statistically different rates in BGS traps with or without BG-Lures. However, MASTs with BG-Lures caught significantly less male Ae. aegypti than BGS traps baited with BG-Lures in Cairns, and MASTs without BG-Lures caught significantly more male Ae. albopictus than BGS traps without BG-Lures in Madang. Additionally, BG-Lures significantly increased female Ae. aegypti catch rates in BGS traps in Cairns. Lastly, bycatch capture rates in BGS traps were not significantly influenced by the addition of the BG-Lures. While this study provides useful information regarding the surveillance of Ae. aegypti and Ae. albopictus in these locations, further development and investigation is required to successfully integrate an olfactory lure into the MAST system.
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Affiliation(s)
- Kyran M Staunton
- College of Public Health, Medical and Veterinary Sciences, James Cook University, Smithfield, Australia
- Australian Institute of Tropical Health and Medicine, James Cook University, Smithfield, Australia
| | - Joelyn Goi
- Vector-Borne Diseases Unit, PNG Institute of Medical Research, Madang, 511 Madang Province, Papua New Guinea
| | - Michael Townsend
- College of Public Health, Medical and Veterinary Sciences, James Cook University, Smithfield, Australia
- Australian Institute of Tropical Health and Medicine, James Cook University, Smithfield, Australia
| | - Scott A Ritchie
- College of Public Health, Medical and Veterinary Sciences, James Cook University, Smithfield, Australia
- Australian Institute of Tropical Health and Medicine, James Cook University, Smithfield, Australia
| | | | - Nigel Snoad
- Debug, Verily Life Sciences, South San Francisco, CA, USA
| | - Stephan Karl
- Australian Institute of Tropical Health and Medicine, James Cook University, Smithfield, Australia
- Vector-Borne Diseases Unit, PNG Institute of Medical Research, Madang, 511 Madang Province, Papua New Guinea
| | - Thomas R Burkot
- Australian Institute of Tropical Health and Medicine, James Cook University, Smithfield, Australia
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6
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Palatini U, Masri RA, Cosme LV, Koren S, Thibaud-Nissen F, Biedler JK, Krsticevic F, Johnston JS, Halbach R, Crawford JE, Antoshechkin I, Failloux AB, Pischedda E, Marconcini M, Ghurye J, Rhie A, Sharma A, Karagodin DA, Jenrette J, Gamez S, Miesen P, Masterson P, Caccone A, Sharakhova MV, Tu Z, Papathanos PA, Van Rij RP, Akbari OS, Powell J, Phillippy AM, Bonizzoni M. Author Correction: Improved reference genome of the arboviral vector Aedes albopictus. Genome Biol 2021; 22:205. [PMID: 34253230 PMCID: PMC8274027 DOI: 10.1186/s13059-021-02431-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Umberto Palatini
- Department of Biology and Biotechnology, University of Pavia, 27100, Pavia, Italy
| | - Reem A Masri
- Department of Entomology and the Fralin Life Science Institute, Virginia Polytechnic and State University, Blacksburg, VA, 24061, USA
| | - Luciano V Cosme
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, 06511-8934, USA
| | - Sergey Koren
- Genome Informatics Section, Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892-2152, USA
| | - Françoise Thibaud-Nissen
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, 20894, USA
| | - James K Biedler
- Department of Entomology and the Fralin Life Science Institute, Virginia Polytechnic and State University, Blacksburg, VA, 24061, USA
| | - Flavia Krsticevic
- Department of Entomology, Robert H Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, 7610001, Rehovot, Israel
| | - J Spencer Johnston
- Department of Entomology, Texas A&M University, College Station, TX, 77843, USA
| | - Rebecca Halbach
- Department of Medical Microbiology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands
| | | | - Igor Antoshechkin
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Anna-Bella Failloux
- Department of Virology, Arbovirus and Insect Vectors Units, Institut Pasteur, 75015, Paris, France
| | - Elisa Pischedda
- Department of Biology and Biotechnology, University of Pavia, 27100, Pavia, Italy
| | - Michele Marconcini
- Department of Biology and Biotechnology, University of Pavia, 27100, Pavia, Italy
| | - Jay Ghurye
- Genome Informatics Section, Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892-2152, USA
| | - Arang Rhie
- Genome Informatics Section, Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892-2152, USA
| | - Atashi Sharma
- Department of Entomology and the Fralin Life Science Institute, Virginia Polytechnic and State University, Blacksburg, VA, 24061, USA
| | - Dmitry A Karagodin
- Laboratory of Evolutionary Genomics of Insects, The Federal Research Center Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Jeremy Jenrette
- Department of Entomology and the Fralin Life Science Institute, Virginia Polytechnic and State University, Blacksburg, VA, 24061, USA
| | - Stephanie Gamez
- Division of Biological Sciences, University of California, San Diego, La Jolla, CA, 92093-0349, USA
| | - Pascal Miesen
- Department of Medical Microbiology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Patrick Masterson
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, 20894, USA
| | - Adalgisa Caccone
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, 06511-8934, USA
| | - Maria V Sharakhova
- Department of Entomology and the Fralin Life Science Institute, Virginia Polytechnic and State University, Blacksburg, VA, 24061, USA.,Laboratory of Evolutionary Genomics of Insects, The Federal Research Center Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia.,Laboratory of Ecology, Genetics and Environment Protection, Tomsk State University, Tomsk, 634041, Russia
| | - Zhijian Tu
- Department of Entomology and the Fralin Life Science Institute, Virginia Polytechnic and State University, Blacksburg, VA, 24061, USA
| | - Philippos A Papathanos
- Department of Entomology, Robert H Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, 7610001, Rehovot, Israel
| | - Ronald P Van Rij
- Department of Medical Microbiology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Omar S Akbari
- Division of Biological Sciences, University of California, San Diego, La Jolla, CA, 92093-0349, USA
| | - Jeffrey Powell
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, 06511-8934, USA
| | - Adam M Phillippy
- Genome Informatics Section, Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892-2152, USA
| | - Mariangela Bonizzoni
- Department of Biology and Biotechnology, University of Pavia, 27100, Pavia, Italy.
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7
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Staunton KM, Leiva D, Cruz A, Goi J, Arisqueta C, Liu J, Desnoyer M, Howell P, Espinosa F, Mendoza AC, Karl S, Crawford JE, Xiang W, Manrique-Saide P, Achee NL, Grieco JP, Ritchie SA, Burkot TR, Snoad N. Outcomes from international field trials with Male Aedes Sound Traps: Frequency-dependent effectiveness in capturing target species in relation to bycatch abundance. PLoS Negl Trop Dis 2021; 15:e0009061. [PMID: 33630829 PMCID: PMC7906331 DOI: 10.1371/journal.pntd.0009061] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 12/09/2020] [Indexed: 02/07/2023] Open
Abstract
Aedes aegypti and Aedes albopictus vector dengue, chikungunya and Zika viruses. With both species expanding their global distributions at alarming rates, developing effective surveillance equipment is a continuing priority for public health researchers. Sound traps have been shown, in limited testing, to be highly species-specific when emitting a frequency corresponding to a female mosquito wingbeat. Determining male mosquito capture rates in sound traps based on lure frequencies in endemic settings is the next step for informed deployment of these surveillance tools. We field-evaluated Male Aedes Sound Traps (MASTs) set to either 450 Hz, 500 Hz, 550 Hz or 600 Hz for sampling Aedes aegypti and/or Aedes albopictus and compared catch rates to BG-Sentinel traps within Pacific (Madang, Papua New Guinea) and Latin American (Molas, Mexico and Orange Walk Town, Belize) locations. MASTs set to 450-550 Hz consistently caught male Ae. aegypti at rates comparable to BG-Sentinel traps in all locations. A peak in male Ae. albopictus captures in MASTs set at 550 Hz was observed, with the lowest mean abundance recorded in MASTs set to 450 Hz. While significantly higher abundances of male Culex were sampled in MASTs emitting lower relative frequencies in Molas, overall male Culex were captured in significantly lower abundances in the MASTs, relative to BG-Sentinel traps within all locations. Finally, significant differences in rates at which male Aedes and Culex were positively detected in trap-types per weekly collections were broadly consistent with trends in abundance data per trap-type. MASTs at 550 Hz effectively captured both male Ae. aegypti and Ae. albopictus while greatly reducing bycatch, especially male Culex, in locations where dengue transmission has occurred. This high species-specificity of the MAST not only reduces staff-time required to sort samples, but can also be exploited to develop an accurate smart-trap system-both outcomes potentially reducing public health program expenses.
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Affiliation(s)
- Kyran M. Staunton
- College of Public Health, Medical and Veterinary Sciences, James Cook University, Smithfield, Australia
- Australian Institute of Tropical Health and Medicine, James Cook University, Smithfield, Australia
| | - Donovan Leiva
- Belize Vector and Ecology Center (BVEC), Orange Walk Town, Belize, Central America
| | - Alvaro Cruz
- Belize Vector and Ecology Center (BVEC), Orange Walk Town, Belize, Central America
| | - Joelyn Goi
- Vector-Borne Diseases Unit, PNG Institute of Medical Research, Madang, Papua New Guinea
| | - Carlos Arisqueta
- Collaborative Unit for Entomological Bioassays (UCBE) and the Laboratory of Biological Control for Ae. aegypti, Universidad Autónoma de Yucatán, Merida, México
| | - Jianyi Liu
- Verily Life Sciences, San Francisco, California, United States of America
| | - Mark Desnoyer
- Verily Life Sciences, San Francisco, California, United States of America
| | - Paul Howell
- Verily Life Sciences, San Francisco, California, United States of America
| | - Francia Espinosa
- Collaborative Unit for Entomological Bioassays (UCBE) and the Laboratory of Biological Control for Ae. aegypti, Universidad Autónoma de Yucatán, Merida, México
| | - Azael Che Mendoza
- Collaborative Unit for Entomological Bioassays (UCBE) and the Laboratory of Biological Control for Ae. aegypti, Universidad Autónoma de Yucatán, Merida, México
| | - Stephan Karl
- Australian Institute of Tropical Health and Medicine, James Cook University, Smithfield, Australia
- Vector-Borne Diseases Unit, PNG Institute of Medical Research, Madang, Papua New Guinea
| | - Jacob E. Crawford
- Verily Life Sciences, San Francisco, California, United States of America
| | - Wei Xiang
- School of Engineering and Mathematical Sciences, La Trobe University, Melbourne, Australia
| | - Pablo Manrique-Saide
- Collaborative Unit for Entomological Bioassays (UCBE) and the Laboratory of Biological Control for Ae. aegypti, Universidad Autónoma de Yucatán, Merida, México
| | - Nicole L. Achee
- Department of Biological Sciences, Eck Institute for Global Health, University of Notre Dame, Notre Dame, Indiana, United States of America
| | - John P. Grieco
- Department of Biological Sciences, Eck Institute for Global Health, University of Notre Dame, Notre Dame, Indiana, United States of America
| | - Scott A. Ritchie
- College of Public Health, Medical and Veterinary Sciences, James Cook University, Smithfield, Australia
- Australian Institute of Tropical Health and Medicine, James Cook University, Smithfield, Australia
| | - Thomas R. Burkot
- Australian Institute of Tropical Health and Medicine, James Cook University, Smithfield, Australia
| | - Nigel Snoad
- Verily Life Sciences, San Francisco, California, United States of America
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8
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Staunton KM, Crawford JE, Liu J, Townsend M, Han Y, Desnoyer M, Howell P, Xiang W, Burkot TR, Snoad N, Ritchie SA. A Low-Powered and Highly Selective Trap for Male Aedes (Diptera: Culicidae) Surveillance: The Male Aedes Sound Trap. J Med Entomol 2021; 58:408-415. [PMID: 32740655 PMCID: PMC7801748 DOI: 10.1093/jme/tjaa151] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Indexed: 05/05/2023]
Abstract
As Aedes aegypti (Linnaeus, Diptera: Culicidae) expands its global distribution and vectors a range of debilitating arboviruses there is an increased need for enhanced mosquito surveillance. Consequently, we developed a Male Aedes Sound Trap (MAST) that requires minimal power and is highly species-specific. Two different versions of the MAST were developed, one that uses synthetic pyrethroid to kill captured mosquitoes (MAST Spray) and another which has an internal divider to create a killing chamber in which a sticky panel can be placed to capture mosquitoes (MAST Sticky). We compared weekly capture rates of male Ae. aegypti and bycatch from the two MAST versions to those from BG-Sentinel (BGS) traps and Sound-producing BG-Gravid Aedes Traps (SGATs) throughout Cairns, northern Australia. Weekly mean male Ae. aegypti catches did not significantly differ between trap types. However, the rate of positive weekly detections of male Ae. aegypti was lower for the MAST Sticky than the other three trap types. The MASTs sampled significantly fewer mosquitoes other than male Ae. aegypti, than either the BGS trap or the SGAT. Also, the MASTs and SGATs all caught significantly less non-Culicidae bycatch than the BGS traps. Consequently, we have developed a versatile male Ae. aegypti trap which is potentially of great benefit to Ae. aegypti surveillance programs.
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Affiliation(s)
- Kyran M Staunton
- College of Public Health, Medical and Veterinary Sciences, James Cook University, Smithfield, QLD, Australia
- Australian Institute of Tropical Health and Medicine, James Cook University, Smithfield, QLD, Australia
- Corresponding author, e-mail:
| | | | - Jianyi Liu
- Verily Life Sciences, South San Francisco, CA
| | - Michael Townsend
- College of Public Health, Medical and Veterinary Sciences, James Cook University, Smithfield, QLD, Australia
- Australian Institute of Tropical Health and Medicine, James Cook University, Smithfield, QLD, Australia
| | - Yu Han
- College of Science & Engineering, James Cook University, Smithfield, QLD, Australia
| | | | - Paul Howell
- Verily Life Sciences, South San Francisco, CA
| | - Wei Xiang
- College of Science & Engineering, James Cook University, Smithfield, QLD, Australia
| | - Thomas R Burkot
- Australian Institute of Tropical Health and Medicine, James Cook University, Smithfield, QLD, Australia
| | - Nigel Snoad
- Verily Life Sciences, South San Francisco, CA
| | - Scott A Ritchie
- College of Public Health, Medical and Veterinary Sciences, James Cook University, Smithfield, QLD, Australia
- Australian Institute of Tropical Health and Medicine, James Cook University, Smithfield, QLD, Australia
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9
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Rose NH, Sylla M, Badolo A, Lutomiah J, Ayala D, Aribodor OB, Ibe N, Akorli J, Otoo S, Mutebi JP, Kriete AL, Ewing EG, Sang R, Gloria-Soria A, Powell JR, Baker RE, White BJ, Crawford JE, McBride CS. Climate and Urbanization Drive Mosquito Preference for Humans. Curr Biol 2020; 30:3570-3579.e6. [PMID: 32707056 PMCID: PMC7511451 DOI: 10.1016/j.cub.2020.06.092] [Citation(s) in RCA: 105] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 06/18/2020] [Accepted: 06/26/2020] [Indexed: 12/24/2022]
Abstract
The majority of mosquito-borne illness is spread by a few mosquito species that have evolved to specialize in biting humans, yet the precise causes of this behavioral shift are poorly understood. We address this gap in the arboviral vector Aedes aegypti. We first collect and characterize the behavior of mosquitoes from 27 sites scattered across the species' ancestral range in sub-Saharan Africa, revealing previously unrecognized variation in preference for human versus animal odor. We then use modeling to show that over 80% of this variation can be predicted by two ecological factors-dry season intensity and human population density. Finally, we integrate this information with whole-genome sequence data from 375 individual mosquitoes to identify a single underlying ancestry component linked to human preference. Genetic changes associated with human specialist ancestry were concentrated in a few chromosomal regions. Our findings suggest that human-biting in this important disease vector originally evolved as a by-product of breeding in human-stored water in areas where doing so provided the only means to survive the long, hot dry season. Our model also predicts that the rapid urbanization currently taking place in Africa will drive further mosquito evolution, causing a shift toward human-biting in many large cities by 2050.
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Affiliation(s)
- Noah H Rose
- Department of Ecology & Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA; Princeton Neuroscience Institute, Princeton University, Princeton, NJ 08544, USA.
| | - Massamba Sylla
- Unité d'Entomologie, de Bactériologie, de Virologie, Département de Biologie Animale, Faculté des Sciences et Techniques, Université Cheikh Anta DIOP BP 5005 Dakar, Senegal
| | - Athanase Badolo
- Laboratory of Fundamental and Applied Entomology, Université Joseph Ki-Zerbo, 03 BP 7021 Ouagadougou, Burkina Faso
| | - Joel Lutomiah
- Arbovirus/Viral Hemorrhagic Fevers Laboratory, Center for Virus Research, Kenya Medical Research Institute (KEMRI), Nairobi, Kenya
| | - Diego Ayala
- UMR MIVEGEC, IRD, CNRS, Univ. Montpellier, 911 avenue Agropolis, BP 64501, 34394 Montpellier, France; Le Centre International de Recherches Médicales de Franceville, BP 769, Franceville, Gabon
| | | | - Nnenna Ibe
- Department of Ecology & Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA
| | - Jewelna Akorli
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, University of Ghana, Accra, Ghana
| | - Sampson Otoo
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, University of Ghana, Accra, Ghana
| | - John-Paul Mutebi
- Centers for Disease Control and Prevention, Fort Collins, CO 80521, USA
| | - Alexis L Kriete
- Department of Ecology & Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA; Princeton Neuroscience Institute, Princeton University, Princeton, NJ 08544, USA
| | - Eliza G Ewing
- Department of Ecology & Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA
| | - Rosemary Sang
- Arbovirus/Viral Hemorrhagic Fevers Laboratory, Center for Virus Research, Kenya Medical Research Institute (KEMRI), Nairobi, Kenya
| | - Andrea Gloria-Soria
- Department of Ecology and Evolutionary Biology, Yale University, 21 Sachem Street, New Haven, CT 06511, USA
| | - Jeffrey R Powell
- Department of Ecology and Evolutionary Biology, Yale University, 21 Sachem Street, New Haven, CT 06511, USA
| | - Rachel E Baker
- Princeton Environmental Institute, Princeton University, Princeton, NJ 08544, USA
| | - Bradley J White
- Verily Life Sciences, 259 East Grand Avenue, South San Francisco, CA 94080, USA
| | - Jacob E Crawford
- Verily Life Sciences, 259 East Grand Avenue, South San Francisco, CA 94080, USA
| | - Carolyn S McBride
- Department of Ecology & Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA; Princeton Neuroscience Institute, Princeton University, Princeton, NJ 08544, USA.
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10
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Palatini U, Masri RA, Cosme LV, Koren S, Thibaud-Nissen F, Biedler JK, Krsticevic F, Johnston JS, Halbach R, Crawford JE, Antoshechkin I, Failloux AB, Pischedda E, Marconcini M, Ghurye J, Rhie A, Sharma A, Karagodin DA, Jenrette J, Gamez S, Miesen P, Masterson P, Caccone A, Sharakhova MV, Tu Z, Papathanos PA, Van Rij RP, Akbari OS, Powell J, Phillippy AM, Bonizzoni M. Improved reference genome of the arboviral vector Aedes albopictus. Genome Biol 2020; 21:215. [PMID: 32847630 PMCID: PMC7448346 DOI: 10.1186/s13059-020-02141-w] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 08/07/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND The Asian tiger mosquito Aedes albopictus is globally expanding and has become the main vector for human arboviruses in Europe. With limited antiviral drugs and vaccines available, vector control is the primary approach to prevent mosquito-borne diseases. A reliable and accurate DNA sequence of the Ae. albopictus genome is essential to develop new approaches that involve genetic manipulation of mosquitoes. RESULTS We use long-read sequencing methods and modern scaffolding techniques (PacBio, 10X, and Hi-C) to produce AalbF2, a dramatically improved assembly of the Ae. albopictus genome. AalbF2 reveals widespread viral insertions, novel microRNAs and piRNA clusters, the sex-determining locus, and new immunity genes, and enables genome-wide studies of geographically diverse Ae. albopictus populations and analyses of the developmental and stage-dependent network of expression data. Additionally, we build the first physical map for this species with 75% of the assembled genome anchored to the chromosomes. CONCLUSION The AalbF2 genome assembly represents the most up-to-date collective knowledge of the Ae. albopictus genome. These resources represent a foundation to improve understanding of the adaptation potential and the epidemiological relevance of this species and foster the development of innovative control measures.
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Affiliation(s)
- Umberto Palatini
- Department of Biology and Biotechnology, University of Pavia, Pavia, 27100, Italy
| | - Reem A Masri
- Department of Entomology and the Fralin Life Science Institute, Virginia Polytechnic and State University, Blacksburg, VA, 24061, USA
| | - Luciano V Cosme
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, 06511-8934, USA
| | - Sergey Koren
- Genome Informatics Section, Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, 20892-2152, MD, USA
| | - Françoise Thibaud-Nissen
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, 20894, MD, USA
| | - James K Biedler
- Department of Entomology and the Fralin Life Science Institute, Virginia Polytechnic and State University, Blacksburg, VA, 24061, USA
| | - Flavia Krsticevic
- Department of Entomology, Robert H Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, 7610001, Rehovot, Israel
| | - J Spencer Johnston
- Department of Entomology, Texas A&M University, College Station, TX, 77843, USA
| | - Rebecca Halbach
- Department of Medical Microbiology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands
| | | | - Igor Antoshechkin
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Anna-Bella Failloux
- Department of Virology, Arbovirus and Insect Vectors Units, Institut Pasteur, Paris, 75015, France
| | - Elisa Pischedda
- Department of Biology and Biotechnology, University of Pavia, Pavia, 27100, Italy
| | - Michele Marconcini
- Department of Biology and Biotechnology, University of Pavia, Pavia, 27100, Italy
| | - Jay Ghurye
- Genome Informatics Section, Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, 20892-2152, MD, USA
| | - Arang Rhie
- Genome Informatics Section, Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, 20892-2152, MD, USA
| | - Atashi Sharma
- Department of Entomology and the Fralin Life Science Institute, Virginia Polytechnic and State University, Blacksburg, VA, 24061, USA
| | - Dmitry A Karagodin
- Laboratory of Evolutionary Genomics of Insects, The Federal Research Center Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Jeremy Jenrette
- Department of Entomology and the Fralin Life Science Institute, Virginia Polytechnic and State University, Blacksburg, VA, 24061, USA
| | - Stephanie Gamez
- Division of Biological Sciences, University of California, San Diego, La Jolla, CA, 92093-0349, USA
| | - Pascal Miesen
- Department of Medical Microbiology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Patrick Masterson
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, 20894, MD, USA
| | - Adalgisa Caccone
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, 06511-8934, USA
| | - Maria V Sharakhova
- Department of Entomology and the Fralin Life Science Institute, Virginia Polytechnic and State University, Blacksburg, VA, 24061, USA
- Laboratory of Evolutionary Genomics of Insects, The Federal Research Center Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
- Laboratory of Ecology, Genetics and Environment Protection, Tomsk State University, Tomsk, 634041, Russia
| | - Zhijian Tu
- Department of Entomology and the Fralin Life Science Institute, Virginia Polytechnic and State University, Blacksburg, VA, 24061, USA
| | - Philippos A Papathanos
- Department of Entomology, Robert H Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, 7610001, Rehovot, Israel
| | - Ronald P Van Rij
- Department of Medical Microbiology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Omar S Akbari
- Division of Biological Sciences, University of California, San Diego, La Jolla, CA, 92093-0349, USA
| | - Jeffrey Powell
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, 06511-8934, USA
| | - Adam M Phillippy
- Genome Informatics Section, Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, 20892-2152, MD, USA
| | - Mariangela Bonizzoni
- Department of Biology and Biotechnology, University of Pavia, Pavia, 27100, Italy.
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11
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Crawford JE, Clarke DW, Criswell V, Desnoyer M, Cornel D, Deegan B, Gong K, Hopkins KC, Howell P, Hyde JS, Livni J, Behling C, Benza R, Chen W, Dobson KL, Eldershaw C, Greeley D, Han Y, Hughes B, Kakani E, Karbowski J, Kitchell A, Lee E, Lin T, Liu J, Lozano M, MacDonald W, Mains JW, Metlitz M, Mitchell SN, Moore D, Ohm JR, Parkes K, Porshnikoff A, Robuck C, Sheridan M, Sobecki R, Smith P, Stevenson J, Sullivan J, Wasson B, Weakley AM, Wilhelm M, Won J, Yasunaga A, Chan WC, Holeman J, Snoad N, Upson L, Zha T, Dobson SL, Mulligan FS, Massaro P, White BJ. Efficient production of male Wolbachia-infected Aedes aegypti mosquitoes enables large-scale suppression of wild populations. Nat Biotechnol 2020; 38:482-492. [PMID: 32265562 DOI: 10.1038/s41587-020-0471-x] [Citation(s) in RCA: 157] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 02/10/2020] [Accepted: 02/27/2020] [Indexed: 11/09/2022]
Abstract
The range of the mosquito Aedes aegypti continues to expand, putting more than two billion people at risk of arboviral infection. The sterile insect technique (SIT) has been used to successfully combat agricultural pests at large scale, but not mosquitoes, mainly because of challenges with consistent production and distribution of high-quality male mosquitoes. We describe automated processes to rear and release millions of competitive, sterile male Wolbachia-infected mosquitoes, and use of these males in a large-scale suppression trial in Fresno County, California. In 2018, we released 14.4 million males across three replicate neighborhoods encompassing 293 hectares. At peak mosquito season, the number of female mosquitoes was 95.5% lower (95% CI, 93.6-96.9) in release areas compared to non-release areas, with the most geographically isolated neighborhood reaching a 99% reduction. This work demonstrates the high efficacy of mosquito SIT in an area ninefold larger than in previous similar trials, supporting the potential of this approach in public health and nuisance-mosquito eradication programs.
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Affiliation(s)
| | | | | | | | - Devon Cornel
- Consolidated Mosquito Abatement District, Parlier, CA, USA
| | | | - Kyle Gong
- Verily Life Sciences, South San Francisco, CA, USA
| | | | - Paul Howell
- Verily Life Sciences, South San Francisco, CA, USA
| | | | - Josh Livni
- Verily Life Sciences, South San Francisco, CA, USA
| | | | - Renzo Benza
- Verily Life Sciences, South San Francisco, CA, USA
| | - Willa Chen
- Verily Life Sciences, South San Francisco, CA, USA
| | | | | | | | - Yi Han
- Verily Life Sciences, South San Francisco, CA, USA
| | | | | | | | | | - Erika Lee
- Verily Life Sciences, South San Francisco, CA, USA
| | - Teresa Lin
- Verily Life Sciences, South San Francisco, CA, USA
| | - Jianyi Liu
- Verily Life Sciences, South San Francisco, CA, USA
| | | | | | | | | | | | - David Moore
- Verily Life Sciences, South San Francisco, CA, USA
| | | | | | | | - Chris Robuck
- Verily Life Sciences, South San Francisco, CA, USA
| | | | | | - Peter Smith
- Verily Life Sciences, South San Francisco, CA, USA
| | | | | | - Brian Wasson
- Verily Life Sciences, South San Francisco, CA, USA
| | | | - Mark Wilhelm
- Verily Life Sciences, South San Francisco, CA, USA
| | - Joshua Won
- Verily Life Sciences, South San Francisco, CA, USA
| | - Ari Yasunaga
- Verily Life Sciences, South San Francisco, CA, USA
| | | | - Jodi Holeman
- Consolidated Mosquito Abatement District, Parlier, CA, USA
| | - Nigel Snoad
- Verily Life Sciences, South San Francisco, CA, USA
| | - Linus Upson
- Verily Life Sciences, South San Francisco, CA, USA
| | - Tiantian Zha
- Verily Life Sciences, South San Francisco, CA, USA
| | - Stephen L Dobson
- MosquitoMate Inc., Lexington, KY, USA.,Department of Entomology, University of Kentucky, Lexington, KY, USA
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12
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Marconcini M, Hernandez L, Iovino G, Houé V, Valerio F, Palatini U, Pischedda E, Crawford JE, White BJ, Lin T, Carballar-Lejarazu R, Ometto L, Forneris F, Failloux AB, Bonizzoni M. Polymorphism analyses and protein modelling inform on functional specialization of Piwi clade genes in the arboviral vector Aedes albopictus. PLoS Negl Trop Dis 2019; 13:e0007919. [PMID: 31790401 PMCID: PMC6907866 DOI: 10.1371/journal.pntd.0007919] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 12/12/2019] [Accepted: 11/11/2019] [Indexed: 12/27/2022] Open
Abstract
Current knowledge of the piRNA pathway is based mainly on studies on Drosophila melanogaster where three proteins of the Piwi subclade of the Argonaute family interact with PIWI-interacting RNAs to silence transposable elements in gonadal tissues. In mosquito species that transmit epidemic arboviruses such as dengue and chikungunya viruses, Piwi clade genes underwent expansion, are also expressed in the soma and cross-talk with proteins of recognized antiviral function cannot be excluded for some Piwi proteins. These observations underscore the importance of expanding our knowledge of the piRNA pathway beyond the model organism D. melanogaster. Here we focus on the emerging arboviral vector Aedes albopictus and we couple traditional approaches of expression and adaptive evolution analyses with most current computational predictions of protein structure to study evolutionary divergence among Piwi clade proteins. Superposition of protein homology models indicate possible high structure similarity among all Piwi proteins, with high levels of amino acid conservation in the inner regions devoted to RNA binding. On the contrary, solvent-exposed surfaces showed low conservation, with several sites under positive selection. Analysis of the expression profiles of Piwi transcripts during mosquito development and following infection with dengue serotype 1 or chikungunya viruses showed a concerted elicitation of all Piwi transcripts during viral dissemination of dengue viruses while maintenance of infection relied on expression of primarily Piwi5. Opposite, establishment of persistent infection by chikungunya virus is accompanied by increased expression of all Piwi genes, particularly Piwi4 and, again, Piwi5. Overall these results are consistent with functional specialization and a general antiviral role for Piwi5. Experimental evidences of sites under positive selection in Piwi1/3, Piwi4 and Piwi6, that have complex expression profiles, provide useful knowledge to design tailored functional experiments.
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Affiliation(s)
- Michele Marconcini
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | - Luis Hernandez
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | - Giuseppe Iovino
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | - Vincent Houé
- Arbovirus and Insect Vectors Units, Department of Virology, Institut Pasteur, Paris, France
| | - Federica Valerio
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | - Umberto Palatini
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | - Elisa Pischedda
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | - Jacob E. Crawford
- Verily Life Sciences, South San Francisco, California, United States of America
| | - Bradley J. White
- Verily Life Sciences, South San Francisco, California, United States of America
| | - Teresa Lin
- Verily Life Sciences, South San Francisco, California, United States of America
| | | | - Lino Ometto
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | - Federico Forneris
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | - Anna-Bella Failloux
- Arbovirus and Insect Vectors Units, Department of Virology, Institut Pasteur, Paris, France
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13
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Martin CH, Höhna S, Crawford JE, Turner BJ, Richards EJ, Simons LH. The complex effects of demographic history on the estimation of substitution rate: concatenated gene analysis results in no more than twofold overestimation. Proc Biol Sci 2019; 284:rspb.2017.0537. [PMID: 28814654 DOI: 10.1098/rspb.2017.0537] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 07/11/2017] [Indexed: 01/09/2023] Open
Affiliation(s)
- Christopher H Martin
- Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Sebastian Höhna
- Department of Integrative Biology, University of California, Berkeley, CA, USA.,Department of Statistics, University of California, Berkeley, CA, USA.,Division of Evolutionary Biology, Ludwig-Maximilian-Universität, München, Germany
| | - Jacob E Crawford
- Department of Integrative Biology, University of California, Berkeley, CA, USA
| | | | - Emilie J Richards
- Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Lee H Simons
- Retired. U.S. Fish and Wildlife Service, 7123 Grounsel Street, Las Vegas, Nevada 89131, USA
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14
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Matthews BJ, Dudchenko O, Kingan SB, Koren S, Antoshechkin I, Crawford JE, Glassford WJ, Herre M, Redmond SN, Rose NH, Weedall GD, Wu Y, Batra SS, Brito-Sierra CA, Buckingham SD, Campbell CL, Chan S, Cox E, Evans BR, Fansiri T, Filipović I, Fontaine A, Gloria-Soria A, Hall R, Joardar VS, Jones AK, Kay RGG, Kodali VK, Lee J, Lycett GJ, Mitchell SN, Muehling J, Murphy MR, Omer AD, Partridge FA, Peluso P, Aiden AP, Ramasamy V, Rašić G, Roy S, Saavedra-Rodriguez K, Sharan S, Sharma A, Smith ML, Turner J, Weakley AM, Zhao Z, Akbari OS, Black WC, Cao H, Darby AC, Hill CA, Johnston JS, Murphy TD, Raikhel AS, Sattelle DB, Sharakhov IV, White BJ, Zhao L, Aiden EL, Mann RS, Lambrechts L, Powell JR, Sharakhova MV, Tu Z, Robertson HM, McBride CS, Hastie AR, Korlach J, Neafsey DE, Phillippy AM, Vosshall LB. Improved reference genome of Aedes aegypti informs arbovirus vector control. Nature 2018; 563:501-507. [PMID: 30429615 PMCID: PMC6421076 DOI: 10.1038/s41586-018-0692-z] [Citation(s) in RCA: 306] [Impact Index Per Article: 51.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Accepted: 10/05/2018] [Indexed: 11/10/2022]
Abstract
Female Aedes aegypti mosquitoes infect more than 400 million people each year with dangerous viral pathogens including dengue, yellow fever, Zika and chikungunya. Progress in understanding the biology of mosquitoes and developing the tools to fight them has been slowed by the lack of a high-quality genome assembly. Here we combine diverse technologies to produce the markedly improved, fully re-annotated AaegL5 genome assembly, and demonstrate how it accelerates mosquito science. We anchored physical and cytogenetic maps, doubled the number of known chemosensory ionotropic receptors that guide mosquitoes to human hosts and egg-laying sites, provided further insight into the size and composition of the sex-determining M locus, and revealed copy-number variation among glutathione S-transferase genes that are important for insecticide resistance. Using high-resolution quantitative trait locus and population genomic analyses, we mapped new candidates for dengue vector competence and insecticide resistance. AaegL5 will catalyse new biological insights and intervention strategies to fight this deadly disease vector. An improved, fully re-annotated Aedes aegypti genome assembly (AaegL5) provides insights into the sex-determining M locus, chemosensory systems that help mosquitoes to hunt humans and loci involved in insecticide resistance and will help to generate intervention strategies to fight this deadly disease vector.
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Affiliation(s)
- Benjamin J Matthews
- Laboratory of Neurogenetics and Behavior, The Rockefeller University, New York, NY, USA. .,Howard Hughes Medical Institute, New York, NY, USA. .,Kavli Neural Systems Institute, New York, NY, USA.
| | - Olga Dudchenko
- The Center for Genome Architecture, Baylor College of Medicine, Houston, TX, USA.,Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA.,Department of Computer Science, Rice University, Houston, TX, USA.,Center for Theoretical and Biological Physics, Rice University, Houston, TX, USA
| | | | - Sergey Koren
- National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Igor Antoshechkin
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, USA
| | | | - William J Glassford
- Mortimer B. Zuckerman Mind Brain Behavior Institute, Department of Biochemistry and Molecular Biophysics, Columbia University, New York, NY, USA
| | - Margaret Herre
- Laboratory of Neurogenetics and Behavior, The Rockefeller University, New York, NY, USA.,Kavli Neural Systems Institute, New York, NY, USA
| | - Seth N Redmond
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.,Department of Immunology and Infectious Disease, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Noah H Rose
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, USA.,Princeton Neuroscience Institute, Princeton University, Princeton, NJ, USA
| | - Gareth D Weedall
- Vector Biology Department, Liverpool School of Tropical Medicine, Liverpool, UK.,Liverpool John Moores University, Liverpool, UK
| | - Yang Wu
- Department of Pathogen Biology, School of Public Health, Southern Medical University, Guangzhou, China.,Department of Biochemistry, Virginia Tech, Blacksburg, VA, USA.,Fralin Life Science Institute, Virginia Tech, Blacksburg, VA, USA
| | - Sanjit S Batra
- The Center for Genome Architecture, Baylor College of Medicine, Houston, TX, USA.,Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA.,Department of Computer Science, Rice University, Houston, TX, USA
| | - Carlos A Brito-Sierra
- Department of Entomology, Purdue University, West Lafayette, IN, USA.,Purdue Institute for Inflammation, Immunology and Infectious Disease, Purdue University, West Lafayette, IN, USA
| | - Steven D Buckingham
- Centre for Respiratory Biology, UCL Respiratory, University College London, London, UK
| | - Corey L Campbell
- Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO, USA
| | - Saki Chan
- Bionano Genomics, San Diego, CA, USA
| | - Eric Cox
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, USA
| | - Benjamin R Evans
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, USA
| | - Thanyalak Fansiri
- Vector Biology and Control Section, Department of Entomology, Armed Forces Research Institute of Medical Sciences (AFRIMS), Bangkok, Thailand
| | - Igor Filipović
- Mosquito Control Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Albin Fontaine
- Insect-Virus Interactions Group, Department of Genomes and Genetics, Institut Pasteur, Paris, France.,Unité de Parasitologie et Entomologie, Département des Maladies Infectieuses, Institut de Recherche Biomédicale des Armées, Marseille, France.,Centre National de la Recherche Scientifique, Unité Mixte de Recherche 2000, Paris, France.,Aix Marseille Université, IRD, AP-HM, SSA, UMR Vecteurs - Infections Tropicales et Méditerranéennes (VITROME), IHU - Méditerranée Infection, Marseille, France
| | - Andrea Gloria-Soria
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, USA.,The Connecticut Agricultural Experiment Station, New Haven, CT, USA
| | | | - Vinita S Joardar
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, USA
| | - Andrew K Jones
- Department of Biological and Medical Sciences, Faculty of Health and Life Sciences, Oxford Brookes University, Oxford, UK
| | - Raissa G G Kay
- Department of Entomology, University of California Riverside, Riverside, CA, USA
| | - Vamsi K Kodali
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, USA
| | - Joyce Lee
- Bionano Genomics, San Diego, CA, USA
| | - Gareth J Lycett
- Vector Biology Department, Liverpool School of Tropical Medicine, Liverpool, UK
| | | | | | - Michael R Murphy
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, USA
| | - Arina D Omer
- The Center for Genome Architecture, Baylor College of Medicine, Houston, TX, USA.,Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA.,Department of Computer Science, Rice University, Houston, TX, USA
| | - Frederick A Partridge
- Centre for Respiratory Biology, UCL Respiratory, University College London, London, UK
| | | | - Aviva Presser Aiden
- The Center for Genome Architecture, Baylor College of Medicine, Houston, TX, USA.,Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA.,Department of Bioengineering, Rice University, Houston, TX, USA.,Department of Pediatrics, Texas Children's Hospital, Houston, TX, USA
| | - Vidya Ramasamy
- Department of Biological and Medical Sciences, Faculty of Health and Life Sciences, Oxford Brookes University, Oxford, UK
| | - Gordana Rašić
- Mosquito Control Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Sourav Roy
- Department of Entomology, Center for Disease Vector Research and Institute for Integrative Genome Biology, University of California, Riverside, CA, USA
| | - Karla Saavedra-Rodriguez
- Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO, USA
| | - Shruti Sharan
- Department of Entomology, Purdue University, West Lafayette, IN, USA.,Purdue Institute for Inflammation, Immunology and Infectious Disease, Purdue University, West Lafayette, IN, USA
| | - Atashi Sharma
- Fralin Life Science Institute, Virginia Tech, Blacksburg, VA, USA.,Department of Entomology, Virginia Tech, Blacksburg, VA, USA
| | | | - Joe Turner
- Institute of Integrative Biology, University of Liverpool, Liverpool, UK
| | | | - Zhilei Zhao
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, USA.,Princeton Neuroscience Institute, Princeton University, Princeton, NJ, USA
| | - Omar S Akbari
- Division of Biological Sciences, University of California, San Diego, La Jolla, CA, USA.,Tata Institute for Genetics and Society, University of California, San Diego, La Jolla, CA, USA
| | - William C Black
- Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO, USA
| | - Han Cao
- Bionano Genomics, San Diego, CA, USA
| | - Alistair C Darby
- Institute of Integrative Biology, University of Liverpool, Liverpool, UK
| | - Catherine A Hill
- Department of Entomology, Purdue University, West Lafayette, IN, USA.,Purdue Institute for Inflammation, Immunology and Infectious Disease, Purdue University, West Lafayette, IN, USA
| | - J Spencer Johnston
- Department of Entomology, Texas A&M University, College Station, TX, USA
| | - Terence D Murphy
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, USA
| | - Alexander S Raikhel
- Department of Entomology, Center for Disease Vector Research and Institute for Integrative Genome Biology, University of California, Riverside, CA, USA
| | - David B Sattelle
- Centre for Respiratory Biology, UCL Respiratory, University College London, London, UK
| | - Igor V Sharakhov
- Fralin Life Science Institute, Virginia Tech, Blacksburg, VA, USA.,Department of Entomology, Virginia Tech, Blacksburg, VA, USA.,Laboratory of Ecology, Genetics and Environmental Protection, Tomsk State University, Tomsk, Russia
| | | | - Li Zhao
- Laboratory of Evolutionary Genetics and Genomics, The Rockefeller University, New York, NY, USA
| | - Erez Lieberman Aiden
- The Center for Genome Architecture, Baylor College of Medicine, Houston, TX, USA.,Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA.,Department of Computer Science, Rice University, Houston, TX, USA.,Center for Theoretical and Biological Physics, Rice University, Houston, TX, USA.,Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Richard S Mann
- Mortimer B. Zuckerman Mind Brain Behavior Institute, Department of Biochemistry and Molecular Biophysics, Columbia University, New York, NY, USA
| | - Louis Lambrechts
- Insect-Virus Interactions Group, Department of Genomes and Genetics, Institut Pasteur, Paris, France.,Centre National de la Recherche Scientifique, Unité Mixte de Recherche 2000, Paris, France
| | - Jeffrey R Powell
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, USA
| | - Maria V Sharakhova
- Fralin Life Science Institute, Virginia Tech, Blacksburg, VA, USA.,Department of Entomology, Virginia Tech, Blacksburg, VA, USA.,Laboratory of Ecology, Genetics and Environmental Protection, Tomsk State University, Tomsk, Russia
| | - Zhijian Tu
- Department of Biochemistry, Virginia Tech, Blacksburg, VA, USA.,Fralin Life Science Institute, Virginia Tech, Blacksburg, VA, USA
| | - Hugh M Robertson
- Department of Entomology, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Carolyn S McBride
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, USA.,Princeton Neuroscience Institute, Princeton University, Princeton, NJ, USA
| | | | | | - Daniel E Neafsey
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.,Department of Immunology and Infectious Disease, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Adam M Phillippy
- National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Leslie B Vosshall
- Laboratory of Neurogenetics and Behavior, The Rockefeller University, New York, NY, USA.,Howard Hughes Medical Institute, New York, NY, USA.,Kavli Neural Systems Institute, New York, NY, USA
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15
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Crawford JE, Amaru R, Song J, Julian CG, Racimo F, Cheng JY, Guo X, Yao J, Ambale-Venkatesh B, Lima JA, Rotter JI, Stehlik J, Moore LG, Prchal JT, Nielsen R. Natural Selection on Genes Related to Cardiovascular Health in High-Altitude Adapted Andeans. Am J Hum Genet 2017; 101:752-767. [PMID: 29100088 PMCID: PMC5673686 DOI: 10.1016/j.ajhg.2017.09.023] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 09/27/2017] [Indexed: 12/20/2022] Open
Abstract
The increase in red blood cell mass (polycythemia) due to the reduced oxygen availability (hypoxia) of residence at high altitude or other conditions is generally thought to be beneficial in terms of increasing tissue oxygen supply. However, the extreme polycythemia and accompanying increased mortality due to heart failure in chronic mountain sickness most likely reduces fitness. Tibetan highlanders have adapted to high altitude, possibly in part via the selection of genetic variants associated with reduced polycythemic response to hypoxia. In contrast, high-altitude-adapted Quechua- and Aymara-speaking inhabitants of the Andean Altiplano are not protected from high-altitude polycythemia in the same way, yet they exhibit other adaptive features for which the genetic underpinnings remain obscure. Here, we used whole-genome sequencing to scan high-altitude Andeans for signals of selection. The genes showing the strongest evidence of selection-including BRINP3, NOS2, and TBX5-are associated with cardiovascular development and function but are not in the response-to-hypoxia pathway. Using association mapping, we demonstrated that the haplotypes under selection are associated with phenotypic variations related to cardiovascular health. We hypothesize that selection in response to hypoxia in Andeans could have vascular effects and could serve to mitigate the deleterious effects of polycythemia rather than reduce polycythemia itself.
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Affiliation(s)
- Jacob E Crawford
- Department of Integrative Biology, University of California, Berkeley, Berkeley, CA 94702, USA
| | - Ricardo Amaru
- Director, Cell Biology Unit, Medical School, San Andres University, La Paz, Bolivia
| | - Jihyun Song
- Department of Medicine, University of Utah Health Center and Veterans Affairs Medical Center, Salt Lake City, UT, 84123, USA
| | - Colleen G Julian
- Department of Medicine, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Fernando Racimo
- Department of Integrative Biology, University of California, Berkeley, Berkeley, CA 94702, USA
| | - Jade Yu Cheng
- Department of Integrative Biology, University of California, Berkeley, Berkeley, CA 94702, USA; Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Oster Voldgade 5-7, Copenhagen 1350, Denmark
| | - Xiuqing Guo
- Los Angeles Biomedical Research Institute, Harbor-UCLA Medical Center, 1124 West Carson Street, Torrance, CA 90502, USA
| | - Jie Yao
- Los Angeles Biomedical Research Institute, Harbor-UCLA Medical Center, 1124 West Carson Street, Torrance, CA 90502, USA
| | - Bharath Ambale-Venkatesh
- Department of Cardiology, Johns Hopkins University, 600 North Wolfe Street, Baltimore, MD 21205, USA
| | - João A Lima
- Department of Cardiology, Johns Hopkins University, 600 North Wolfe Street, Baltimore, MD 21205, USA
| | - Jerome I Rotter
- Los Angeles Biomedical Research Institute, Harbor-UCLA Medical Center, 1124 West Carson Street, Torrance, CA 90502, USA
| | - Josef Stehlik
- Department of Medicine, University of Utah Health Center and Veterans Affairs Medical Center, Salt Lake City, UT, 84123, USA
| | - Lorna G Moore
- Department of Obstetrics and Gynecology, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Josef T Prchal
- Department of Medicine, University of Utah Health Center and Veterans Affairs Medical Center, Salt Lake City, UT, 84123, USA.
| | - Rasmus Nielsen
- Department of Integrative Biology, University of California, Berkeley, Berkeley, CA 94702, USA; Museum of Natural History, University of Copenhagen, Øster Voldgade 5-7, 1350 Copenhagen, Denmark; Department of Statistics, University of California, Berkeley, Berkeley, CA 94702, USA.
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16
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Wang H, Vieira FG, Crawford JE, Chu C, Nielsen R. Asian wild rice is a hybrid swarm with extensive gene flow and feralization from domesticated rice. Genome Res 2017; 27:1029-1038. [PMID: 28385712 PMCID: PMC5453317 DOI: 10.1101/gr.204800.116] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 03/21/2017] [Indexed: 12/30/2022]
Abstract
The domestication history of rice remains controversial, with multiple studies reaching different conclusions regarding its origin(s). These studies have generally assumed that populations of living wild rice, O. rufipogon, are descendants of the ancestral population that gave rise to domesticated rice, but relatively little attention has been paid to the origins and history of wild rice itself. Here, we investigate the genetic ancestry of wild rice by analyzing a diverse panel of rice genomes consisting of 203 domesticated and 435 wild rice accessions. We show that most modern wild rice is heavily admixed with domesticated rice through both pollen- and seed-mediated gene flow. In fact, much presumed wild rice may simply represent different stages of feralized domesticated rice. In line with this hypothesis, many presumed wild rice varieties show remnants of the effects of selective sweeps in previously identified domestication genes, as well as evidence of recent selection in flowering genes possibly associated with the feralization process. Furthermore, there is a distinct geographical pattern of gene flow from aus, indica, and japonica varieties into colocated wild rice. We also show that admixture from aus and indica is more recent than gene flow from japonica, possibly consistent with an earlier spread of japonica varieties. We argue that wild rice populations should be considered a hybrid swarm, connected to domesticated rice by continuous and extensive gene flow.
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Affiliation(s)
- Hongru Wang
- State Key Laboratory of Plant Genomics, National Center for Plant Gene Research (Beijing), Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100101, China
| | - Filipe G Vieira
- Centre for GeoGenetics, University of Copenhagen, 1350 Copenhagen, Denmark
| | - Jacob E Crawford
- Department of Integrative Biology, University of California, Berkeley, California 94720, USA
| | - Chengcai Chu
- State Key Laboratory of Plant Genomics, National Center for Plant Gene Research (Beijing), Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Rasmus Nielsen
- Department of Integrative Biology, University of California, Berkeley, California 94720, USA
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17
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Crawford JE, Alves JM, Palmer WJ, Day JP, Sylla M, Ramasamy R, Surendran SN, Black WC, Pain A, Jiggins FM. Population genomics reveals that an anthropophilic population of Aedes aegypti mosquitoes in West Africa recently gave rise to American and Asian populations of this major disease vector. BMC Biol 2017; 15:16. [PMID: 28241828 PMCID: PMC5329927 DOI: 10.1186/s12915-017-0351-0] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 01/19/2017] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND The mosquito Aedes aegypti is the main vector of dengue, Zika, chikungunya and yellow fever viruses. This major disease vector is thought to have arisen when the African subspecies Ae. aegypti formosus evolved from being zoophilic and living in forest habitats into a form that specialises on humans and resides near human population centres. The resulting domestic subspecies, Ae. aegypti aegypti, is found throughout the tropics and largely blood-feeds on humans. RESULTS To understand this transition, we have sequenced the exomes of mosquitoes collected from five populations from around the world. We found that Ae. aegypti specimens from an urban population in Senegal in West Africa were more closely related to populations in Mexico and Sri Lanka than they were to a nearby forest population. We estimate that the populations in Senegal and Mexico split just a few hundred years ago, and we found no evidence of Ae. aegypti aegypti mosquitoes migrating back to Africa from elsewhere in the tropics. The out-of-Africa migration was accompanied by a dramatic reduction in effective population size, resulting in a loss of genetic diversity and rare genetic variants. CONCLUSIONS We conclude that a domestic population of Ae. aegypti in Senegal and domestic populations on other continents are more closely related to each other than to other African populations. This suggests that an ancestral population of Ae. aegypti evolved to become a human specialist in Africa, giving rise to the subspecies Ae. aegypti aegypti. The descendants of this population are still found in West Africa today, and the rest of the world was colonised when mosquitoes from this population migrated out of Africa. This is the first report of an African population of Ae. aegypti aegypti mosquitoes that is closely related to Asian and American populations. As the two subspecies differ in their ability to vector disease, their existence side by side in West Africa may have important implications for disease transmission.
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Affiliation(s)
- Jacob E Crawford
- Department of Integrative Biology, University of California, Berkeley, CA, 94720-3140, USA
- Present Address: Verily Life Sciences, South San Francisco, CA, 94080, USA
| | - Joel M Alves
- Department of Genetics, University of Cambridge, Downing Street, Cambridge, CB2 3EH, UK
- CIBIO/InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Campus Agrário de Vairão, Universidade do Porto, 4485-661, Vairão, Portugal
| | - William J Palmer
- Department of Genetics, University of Cambridge, Downing Street, Cambridge, CB2 3EH, UK
| | - Jonathan P Day
- Department of Genetics, University of Cambridge, Downing Street, Cambridge, CB2 3EH, UK
| | - Massamba Sylla
- Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO, USA
| | | | - Sinnathamby N Surendran
- ID-FISH Technology, Palo Alto, CA, 94303, USA
- Department of Zoology, University of Jaffna, Jaffna, Sri Lanka
| | - William C Black
- Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO, USA
| | - Arnab Pain
- Biological and Environmental Sciences and Engineering Division, KAUST, Thuwal, Kingdom of Saudi Arabia
| | - Francis M Jiggins
- Department of Genetics, University of Cambridge, Downing Street, Cambridge, CB2 3EH, UK.
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18
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Crawford JE, Riehle MM, Markianos K, Bischoff E, Guelbeogo WM, Gneme A, Sagnon N, Vernick KD, Nielsen R, Lazzaro BP. Evolution of GOUNDRY, a cryptic subgroup of Anopheles gambiae s.l., and its impact on susceptibility to Plasmodium infection. Mol Ecol 2016; 25:1494-510. [PMID: 26846876 DOI: 10.1111/mec.13572] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 01/02/2016] [Accepted: 01/18/2016] [Indexed: 01/12/2023]
Abstract
The recent discovery of a previously unknown genetic subgroup of Anopheles gambiae sensu lato underscores our incomplete understanding of complexities of vector population demographics in Anopheles. This subgroup, named GOUNDRY, does not rest indoors as adults and is highly susceptible to Plasmodium infection in the laboratory. Initial description of GOUNDRY suggested it differed from other known Anopheles taxa in surprising and sometimes contradictory ways, raising a number of questions about its age, population size and relationship to known subgroups. To address these questions, we sequenced the complete genomes of 12 wild-caught GOUNDRY specimens and compared these genomes to a panel of Anopheles genomes. We show that GOUNDRY is most closely related to Anopheles coluzzii, and the timing of cladogenesis is not recent, substantially predating the advent of agriculture. We find a large region of the X chromosome that has swept to fixation in GOUNDRY within the last 100 years, which may be an inversion that serves as a partial barrier to contemporary gene flow. Interestingly, we show that GOUNDRY has a history of inbreeding that is significantly associated with susceptibility to Plasmodium infection in the laboratory. Our results illuminate the genomic evolution of one of probably several cryptic, ecologically specialized subgroups of Anopheles and provide a potent example of how vector population dynamics may complicate efforts to control or eradicate malaria.
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Affiliation(s)
- Jacob E Crawford
- Department of Entomology, Cornell University, Ithaca, NY, USA.,Department of Integrative Biology, University of California, Berkeley, CA, USA
| | - Michelle M Riehle
- Department of Microbiology, University of Minnesota, St. Paul, MN, USA
| | - Kyriacos Markianos
- Program in Genomics, Harvard Medical School, Children's Hospital Boston, Boston, MA, USA
| | - Emmanuel Bischoff
- Unit for Genetics and Genomics of Insect Vectors, Institut Pasteur, Paris, France
| | - Wamdaogo M Guelbeogo
- Centre National de Recherche et de Formation sur le Paludisme, 1487 Avenue de l'Oubritenga, 01 BP 2208, Ouagadougou, Burkina Faso
| | - Awa Gneme
- Centre National de Recherche et de Formation sur le Paludisme, 1487 Avenue de l'Oubritenga, 01 BP 2208, Ouagadougou, Burkina Faso
| | - N'Fale Sagnon
- Centre National de Recherche et de Formation sur le Paludisme, 1487 Avenue de l'Oubritenga, 01 BP 2208, Ouagadougou, Burkina Faso
| | - Kenneth D Vernick
- Unit for Genetics and Genomics of Insect Vectors, Institut Pasteur, Paris, France
| | - Rasmus Nielsen
- Department of Integrative Biology, University of California, Berkeley, CA, USA
| | - Brian P Lazzaro
- Department of Entomology, Cornell University, Ithaca, NY, USA
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19
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Martin CH, Crawford JE, Turner BJ, Simons LH. Diabolical survival in Death Valley: recent pupfish colonization, gene flow and genetic assimilation in the smallest species range on earth. Proc Biol Sci 2016; 283:20152334. [PMID: 26817777 PMCID: PMC4795021 DOI: 10.1098/rspb.2015.2334] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 01/05/2016] [Indexed: 12/11/2022] Open
Abstract
One of the most endangered vertebrates, the Devils Hole pupfish Cyprinodon diabolis, survives in a nearly impossible environment: a narrow subterranean fissure in the hottest desert on earth, Death Valley. This species became a conservation icon after a landmark 1976 US Supreme Court case affirming federal groundwater rights to its unique habitat. However, one outstanding question about this species remains unresolved: how long has diabolis persisted in this hellish environment? We used next-generation sequencing of over 13 000 loci to infer the demographic history of pupfishes in Death Valley. Instead of relicts isolated 2-3 Myr ago throughout repeated flooding of the entire region by inland seas as currently believed, we present evidence for frequent gene flow among Death Valley pupfish species and divergence after the most recent flooding 13 kyr ago. We estimate that Devils Hole was colonized by pupfish between 105 and 830 years ago, followed by genetic assimilation of pelvic fin loss and recent gene flow into neighbouring spring systems. Our results provide a new perspective on an iconic endangered species using the latest population genomic methods and support an emerging consensus that timescales for speciation are overestimated in many groups of rapidly evolving species.
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Affiliation(s)
| | - Jacob E Crawford
- Department of Integrative Biology, University of California, Berkeley, CA, USA Center for Theoretical Evolutionary Genomics, University of California, Berkeley, CA, USA
| | - Bruce J Turner
- Department of Biological Sciences, Virginia Tech, VA, USA
| | - Lee H Simons
- US Fish and and Wildlife Service, Las Vegas, NV, USA
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Crawford JE, Riehle MM, Guelbeogo WM, Gneme A, Sagnon N, Vernick KD, Nielsen R, Lazzaro BP. Reticulate Speciation and Barriers to Introgression in the Anopheles gambiae Species Complex. Genome Biol Evol 2015; 7:3116-31. [PMID: 26615027 PMCID: PMC4994751 DOI: 10.1093/gbe/evv203] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Speciation as a process remains a central focus of evolutionary biology, but our
understanding of the genomic architecture and prevalence of speciation in the face of gene
flow remains incomplete. The Anopheles gambiae species complex of malaria
mosquitoes is a radiation of ecologically diverse taxa. This complex is well-suited for
testing for evidence of a speciation continuum and genomic barriers to introgression
because its members exhibit partially overlapping geographic distributions as well as
varying levels of divergence and reproductive isolation. We sequenced 20 genomes from wild
A. gambiae s.s., Anopheles coluzzii, Anopheles
arabiensis, and compared these with 12 genomes from the “GOUNDRY” subgroup of
A. gambiae s.l. Amidst a backdrop of strong
reproductive isolation, we find strong evidence for a speciation continuum with
introgression of autosomal chromosomal regions among species and subgroups. The X
chromosome, however, is strongly differentiated among all taxa, pointing to a
disproportionately large effect of X chromosome genes in driving speciation among
anophelines. Strikingly, we find that autosomal introgression has occurred from
contemporary hybridization between A. gambiae and A.
arabiensis despite strong divergence (∼5× higher than autosomal divergence) and
isolation on the X chromosome. In addition to the X, we find strong evidence that lowly
recombining autosomal regions, especially pericentromeric regions, serve as barriers to
introgression secondarily to the X. We show that speciation with gene flow results in
genomic mosaicism of divergence and introgression. Such a reticulate gene pool connecting
vector taxa across the speciation continuum has important implications for malaria control
efforts.
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Affiliation(s)
- Jacob E Crawford
- Department of Entomology, Cornell University Department of Integrative Biology, University of California, Berkeley
| | | | - Wamdaogo M Guelbeogo
- Centre National de Recherche et de Formation sur le Paludisme, Ouagadougou, Burkina Faso
| | - Awa Gneme
- Centre National de Recherche et de Formation sur le Paludisme, Ouagadougou, Burkina Faso
| | - N'Fale Sagnon
- Centre National de Recherche et de Formation sur le Paludisme, Ouagadougou, Burkina Faso
| | - Kenneth D Vernick
- Unit of Insect Vector Genetics and Genomics, Institut Pasteur, Paris, France
| | - Rasmus Nielsen
- Department of Integrative Biology, University of California, Berkeley
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Sternberg MG, Segel R, Scielzo ND, Savard G, Clark JA, Bertone PF, Buchinger F, Burkey M, Caldwell S, Chaudhuri A, Crawford JE, Deibel CM, Greene J, Gulick S, Lascar D, Levand AF, Li G, Pérez Galván A, Sharma KS, Van Schelt J, Yee RM, Zabransky BJ. Limit on Tensor Currents from ^{8}Li β Decay. Phys Rev Lett 2015; 115:182501. [PMID: 26565463 DOI: 10.1103/physrevlett.115.182501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Indexed: 06/05/2023]
Abstract
In the standard model, the weak interaction is formulated with a purely vector-axial-vector (V-A) structure. Without restriction on the chirality of the neutrino, the most general limits on tensor currents from nuclear β decay are dominated by a single measurement of the β-ν[over ¯] correlation in ^{6}He β decay dating back over a half century. In the present work, the β-ν[over ¯]-α correlation in the β decay of ^{8}Li and subsequent α-particle breakup of the ^{8}Be^{*} daughter was measured. The results are consistent with a purely V-A interaction and in the case of couplings to right-handed neutrinos (C_{T}=-C_{T}^{'}) limits the tensor fraction to |C_{T}/C_{A}|^{2}<0.011 (95.5% C.L.). The measurement confirms the ^{6}He result using a different nuclear system and employing modern ion-trapping techniques subject to different systematic uncertainties.
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Affiliation(s)
- M G Sternberg
- Department of Physics, University of Chicago, Chicago, Illinois 60637, USA
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
- Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - R Segel
- Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA
| | - N D Scielzo
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - G Savard
- Department of Physics, University of Chicago, Chicago, Illinois 60637, USA
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - J A Clark
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - P F Bertone
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - F Buchinger
- Department of Physics, McGill University, Montréal, Québec H3A 2T8, Canada
| | - M Burkey
- Department of Physics, University of Chicago, Chicago, Illinois 60637, USA
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - S Caldwell
- Department of Physics, University of Chicago, Chicago, Illinois 60637, USA
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - A Chaudhuri
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
- Department of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
| | - J E Crawford
- Department of Physics, McGill University, Montréal, Québec H3A 2T8, Canada
| | - C M Deibel
- Department of Physics and Astronomy, Louisiana State University, Louisiana 70803, USA
- Joint Institute for Nuclear Astrophysics, Michigan State University, East Lansing, Michigan 48824, USA
| | - J Greene
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - S Gulick
- Department of Physics, McGill University, Montréal, Québec H3A 2T8, Canada
| | - D Lascar
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
- Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA
| | - A F Levand
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - G Li
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
- Department of Physics, McGill University, Montréal, Québec H3A 2T8, Canada
- Canadian Nuclear Laboratories, Chalk River, Ontario K0J 1J0, Canada
| | - A Pérez Galván
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - K S Sharma
- Department of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
| | - J Van Schelt
- Department of Physics, University of Chicago, Chicago, Illinois 60637, USA
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - R M Yee
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
- Department of Nuclear Engineering, University of California, Berkeley, California 94720, USA
| | - B J Zabransky
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
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Crawford JE, Nielsen R. Detecting adaptive trait loci in nonmodel systems: divergence or admixture mapping? Mol Ecol 2013; 22:6131-48. [DOI: 10.1111/mec.12562] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 10/09/2013] [Accepted: 10/11/2013] [Indexed: 12/18/2022]
Affiliation(s)
- Jacob E. Crawford
- Department of Integrative Biology; University of California; Berkeley 4134 Valley Life Sciences Building Berkeley CA 94720-3140 USA
| | - Rasmus Nielsen
- Department of Integrative Biology; University of California; Berkeley 4098 Valley Life Sciences Building Berkeley CA 94720-3140 USA
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Li G, Segel R, Scielzo ND, Bertone PF, Buchinger F, Caldwell S, Chaudhuri A, Clark JA, Crawford JE, Deibel CM, Fallis J, Gulick S, Gwinner G, Lascar D, Levand AF, Pedretti M, Savard G, Sharma KS, Sternberg MG, Sun T, Van Schelt J, Yee RM, Zabransky BJ. Tensor interaction limit derived from the α-β-ν[over ¯] correlation in trapped 8Li ions. Phys Rev Lett 2013; 110:092502. [PMID: 23496705 DOI: 10.1103/physrevlett.110.092502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Indexed: 06/01/2023]
Abstract
A measurement of the α-β-ν[over ¯] angular correlation in the Gamow-Teller decay (8)Li→(8)Be(*)+ν[over ¯]+β, (8)Be(*)→α+α has been performed using ions confined in a linear Paul trap surrounded by silicon detectors. The energy difference spectrum of the α particles emitted along and opposite the direction of the β particle is consistent with the standard model prediction and places a limit of 3.1% (95.5% confidence level) on any tensor contribution to the decay. From this result, the amplitude of any tensor component C(T) relative to that of the dominant axial-vector component C(A) of the electroweak interaction is limited to |C(T)/C(A)|<0.18 (95.5% confidence level). This experimental approach is facilitated by several favorable features of the (8)Li β decay and has different systematic effects than the previous β-ν[over ¯] correlation results for a pure Gamow-Teller transition obtained from studying (6)He β decay.
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Affiliation(s)
- G Li
- Department of Physics, McGill University, Montréal, Quebéc H3A 2T8, Canada
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Crawford JE, Rottschaefer SM, Coulibaly B, Sacko M, Niaré O, Riehle MM, Traore SF, Vernick KD, Lazzaro BP. No evidence for positive selection at two potential targets for malaria transmission-blocking vaccines in Anopheles gambiae s.s. Infect Genet Evol 2013; 16:87-92. [PMID: 23357581 DOI: 10.1016/j.meegid.2013.01.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2012] [Revised: 01/04/2013] [Accepted: 01/05/2013] [Indexed: 12/27/2022]
Abstract
Human malaria causes nearly a million deaths in sub-Saharan Africa each year. The evolution of drug-resistance in the parasite and insecticide resistance in the mosquito vector has complicated control measures and made the need for new control strategies more urgent. Anopheles gambiae s.s. is one of the primary vectors of human malaria in Africa, and parasite-transmission-blocking vaccines targeting Anopheles proteins have been proposed as a possible strategy to control the spread of the disease. However, the success of these hypothetical technologies would depend on the successful ability to broadly target mosquito populations that may be genetically heterogeneous. Understanding the evolutionary pressures shaping genetic variation among candidate target molecules offers a first step towards evaluating the prospects of successfully deploying such technologies. We studied the population genetics of genes encoding two candidate target proteins, the salivary gland protein saglin and the basal lamina structural protein laminin, in wild populations of the M and S molecular forms of A. gambiae in Mali. Through analysis of intraspecific genetic variation and interspecific comparisons, we found no evidence of positive natural selection at the genes encoding these proteins. On the contrary, we found evidence for particularly strong purifying selection at the laminin gene. These results provide insight into the patterns of genetic diversity of saglin and laminin, and we discuss these findings in relation to the potential development of these molecules as vaccine targets.
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25
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Crawford JE, Lazzaro BP. Assessing the accuracy and power of population genetic inference from low-pass next-generation sequencing data. Front Genet 2012; 3:66. [PMID: 22536207 PMCID: PMC3334522 DOI: 10.3389/fgene.2012.00066] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2012] [Accepted: 04/05/2012] [Indexed: 01/17/2023] Open
Abstract
Next-generation sequencing (NGS) technologies have made it possible to address population genetic questions in almost any system, but high error rates associated with such data can introduce significant biases into downstream analyses, necessitating careful experimental design and interpretation in studies based on short-read sequencing. Exploration of population genetic analyses based on NGS has revealed some of the potential biases, but previous work has emphasized parameters relevant to human population genetics and further examination of parameters relevant to other systems is necessary, including situations where sample sizes are small and genetic variation is high. To assess experimental power to address several principal objectives of population genetic studies under these conditions, we simulated population samples under selective sweep, population growth, and population subdivision models and tested the power to accurately infer population genetic parameters from sequence polymorphism data obtained through simulated 4×, 8×, and 15× read depth sequence data. We found that estimates of population genetic differentiation and population growth parameters were systematically biased when inference was based on 4× sequencing, but biases were markedly reduced at even 8× read depth. We also found that the power to identify footprints of positive selection depends on an interaction between read depth and the strength of selection, with strong selection being recovered consistently at all read depths, but weak selection requiring deeper read depths for reliable detection. Although we have explored only a small subset of the many possible experimental designs and population genetic models, using only one SNP-calling approach, our results reveal some general patterns and provide some assessment of what biases could be expected under similar experimental structures.
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Mané E, Voss A, Behr JA, Billowes J, Brunner T, Buchinger F, Crawford JE, Dilling J, Ettenauer S, Levy CDP, Shelbaya O, Pearson MR. First experimental determination of the charge radius of 74Rb and its application in tests of the unitarity of the Cabibbo-Kobayashi-Maskawa matrix. Phys Rev Lett 2011; 107:212502. [PMID: 22181875 DOI: 10.1103/physrevlett.107.212502] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2011] [Indexed: 05/31/2023]
Abstract
Collinear-laser spectroscopy with the bunched-beams technique was used for the study of neutron deficient Rb isotopes, out to (74)Rb (N = Z = 37) at TRIUMF. The measured hyperfine coupling constants of (76,78m)Rb were in agreement with literature values. The nuclear spin of (75)Rb was confirmed to be I = 3/2, and its hyperfine coupling constants were measured for the first time. The mean-square charge radius of (74)Rb was determined for the first time. This result has improved the isospin symmetry breaking correction term used to calculate the Ft value, with implications for tests of the unitarity of the Cabibbo-Kobayashi-Maskawa matrix.
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Affiliation(s)
- E Mané
- TRIUMF, Vancouver, British Columbia, Canada.
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27
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Crawford JE, Guelbeogo WM, Sanou A, Traoré A, Vernick KD, Sagnon N, Lazzaro BP. De novo transcriptome sequencing in Anopheles funestus using Illumina RNA-seq technology. PLoS One 2010; 5:e14202. [PMID: 21151993 PMCID: PMC2996306 DOI: 10.1371/journal.pone.0014202] [Citation(s) in RCA: 122] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2010] [Accepted: 11/10/2010] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Anopheles funestus is one of the primary vectors of human malaria, which causes a million deaths each year in sub-Saharan Africa. Few scientific resources are available to facilitate studies of this mosquito species and relatively little is known about its basic biology and evolution, making development and implementation of novel disease control efforts more difficult. The An. funestus genome has not been sequenced, so in order to facilitate genome-scale experimental biology, we have sequenced the adult female transcriptome of An. funestus from a newly founded colony in Burkina Faso, West Africa, using the Illumina GAIIx next generation sequencing platform. METHODOLOGY/PRINCIPAL FINDINGS We assembled short Illumina reads de novo using a novel approach involving iterative de novo assemblies and "target-based" contig clustering. We then selected a conservative set of 15,527 contigs through comparisons to four Dipteran transcriptomes as well as multiple functional and conserved protein domain databases. Comparison to the Anopheles gambiae immune system identified 339 contigs as putative immune genes, thus identifying a large portion of the immune system that can form the basis for subsequent studies of this important malaria vector. We identified 5,434 1:1 orthologues between An. funestus and An. gambiae and found that among these 1:1 orthologues, the protein sequence of those with putative immune function were significantly more diverged than the transcriptome as a whole. Short read alignments to the contig set revealed almost 367,000 genetic polymorphisms segregating in the An. funestus colony and demonstrated the utility of the assembled transcriptome for use in RNA-seq based measurements of gene expression. CONCLUSIONS/SIGNIFICANCE We developed a pipeline that makes de novo transcriptome sequencing possible in virtually any organism at a very reasonable cost ($6,300 in sequencing costs in our case). We anticipate that our approach could be used to develop genomic resources in a diversity of systems for which full genome sequence is currently unavailable. Our An. funestus contig set and analytical results provide a valuable resource for future studies in this non-model, but epidemiologically critical, vector insect.
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Affiliation(s)
- Jacob E Crawford
- Department of Entomology, Cornell University, Ithaca, New York, United States of America.
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Abstract
Anopheles gambiae is a primary vector of Plasmodium falciparum, a human malaria parasite that causes over a million deaths each year in sub-Saharan Africa. Population genetic tests have been employed to detect natural selection at suspected A. gambiae antimalaria genes, but these tests have generally been compromised by the lack of demographically correct null models. Here, we used a coalescent simulation approach within a maximum likelihood framework to fit population growth, bottleneck, and migration models to polymorphism data from Cameroonian A. gambiae. The best-fit models for both the "M" and the "S" molecular forms of A. gambiae included ancient population growth and a high rate of migration from an unsampled subpopulation. After correcting for differences in effective population size, our models suggest that the molecular forms expanded at different times and both expansions significantly predate the advent of agriculture. We show that correcting null models for demography increases the power to detect natural selection in A. gambiae.
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Yaro AS, Dao A, Adamou A, Crawford JE, Traoré SF, Touré AM, Gwadz R, Lehmann T. Reproductive output of female Anopheles gambiae (Diptera: Culicidae): comparison of molecular forms. J Med Entomol 2006; 43:833-9. [PMID: 17017216 DOI: 10.1603/0022-2585(2006)43[833:roofag]2.0.co;2] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Knowledge of ecological differences between the molecular forms of Anopheles gambiae Giles (Diptera: Culicidae) might lead to understanding of their unique contribution to disease transmission, to better vector control, and to identification of the forces that have separated them. We compared female fecundity measured as egg batch size in relation to body size between the molecular forms in Mali and contrasted them with their sibling species, Anopheles arabiensis Patton. To determine whether eggs of different egg batches are of similar "quality," we compared the total protein content of first-stage larvae (L1s), collected < 2 h after hatching in deionized water. Egg batch size significantly varied between An. gambiae and An. arabiensis and between the molecular forms of An. gambiae (mean batch size was 186.3, 182.5, and 162.0 eggs in An. arabiensis and the M and the S molecular form of An. gambiae, respectively). After accommodating female body size, however, the difference in batch size was not significant. In the S molecular form, egg protein content was not correlated with egg batch size (r = -0.08, P > 0.7) nor with female body size (r = -0.18, P > 0.4), suggesting that females with more resources invest in more eggs rather than in higher quality eggs. The mean total protein in eggs of the M form (0.407 microg per L1) was 6% higher than that of the S form (0.384 microg per L1), indicating that the M form invests a greater portion of her resources into current (rather than future) reproduction. A greater investment per offspring coupled with larger egg batch size may reflect an adaptation of the M form to low productivity larval sites as independent evidence suggests.
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Affiliation(s)
- A S Yaro
- Malaria Research and Training Center, 1805, Point G. Bamako, Mali
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Yaro AS, Dao A, Adamou A, Crawford JE, Ribeiro JMC, Gwadz R, Traoré SF, Lehmann T. The distribution of hatching time in Anopheles gambiae. Malar J 2006; 5:19. [PMID: 16553960 PMCID: PMC1479351 DOI: 10.1186/1475-2875-5-19] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2005] [Accepted: 03/22/2006] [Indexed: 11/13/2022] Open
Abstract
Background Knowledge of the ecological differences between the molecular forms of Anopheles gambiae and their sibling species, An. arabiensis might lead to understanding their unique contribution to disease transmission and to better vector control as well as to understanding the evolutionary forces that have separated them. Methods The distributions of hatching time of eggs of wild An. gambiae and An. arabiensis females were compared in different water types. Early and late hatchers of the S molecular form were compared with respect to their total protein content, sex ratio, development success, developmental time and adult body size. Results Overall, the distribution of hatching time was strongly skewed to the right, with 89% of the eggs hatching during the second and third day post oviposition, 10% hatching during the next four days and the remaining 1% hatching over the subsequent week. Slight, but significant differences were found between species and between the molecular forms in all water types. Differences in hatching time distribution were also found among water types (in each species and molecular form), suggesting that the eggs change their hatching time in response to chemical factors in the water. Early hatchers were similar to late hatchers except that they developed faster and produced smaller adults than late hatchers. Conclusion Differences in hatching time and speed of development among eggs of the same batch may be adaptive if catastrophic events such as larval site desiccation are not rare and the site's quality is unpredictable. The egg is not passive and its hatching time depends on water factors. Differences in hatching time between species and molecular forms were slight, probably reflecting that conditions in their larval sites are rather similar.
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Affiliation(s)
- Alpha S Yaro
- Malaria Research and Training Center, 1805, Point G. Bamako, Mali
| | - Adama Dao
- Malaria Research and Training Center, 1805, Point G. Bamako, Mali
| | - Abdoulaye Adamou
- Malaria Research and Training Center, 1805, Point G. Bamako, Mali
| | - Jacob E Crawford
- Laboratory of Malaria and Vector Research, NIAID, NIH. 12735 Twinbrook Parkway, Rockville, MD, USA
| | - José MC Ribeiro
- Laboratory of Malaria and Vector Research, NIAID, NIH. 12735 Twinbrook Parkway, Rockville, MD, USA
| | - Robert Gwadz
- Laboratory of Malaria and Vector Research, NIAID, NIH. 12735 Twinbrook Parkway, Rockville, MD, USA
| | - Sekou F Traoré
- Malaria Research and Training Center, 1805, Point G. Bamako, Mali
| | - Tovi Lehmann
- Laboratory of Malaria and Vector Research, NIAID, NIH. 12735 Twinbrook Parkway, Rockville, MD, USA
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Savard G, Buchinger F, Clark JA, Crawford JE, Gulick S, Hardy JC, Hecht AA, Lee JKP, Levand AF, Scielzo ND, Sharma H, Sharma KS, Tanihata I, Villari ACC, Wang Y. Q value of the superallowed decay of 46V and its influence on Vud and the unitarity of the Cabibbo-Kobayashi-Maskawa matrix. Phys Rev Lett 2005; 95:102501. [PMID: 16196923 DOI: 10.1103/physrevlett.95.102501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2005] [Indexed: 05/04/2023]
Abstract
The masses of the radioactive nuclei (46)V and its decay daughter (46)Ti have been measured with the Canadian Penning Trap on-line Penning trap mass spectrometer to a precision of 1 x 10(-8). A Q(EC) value of 7052.90(40) keV for the superallowed beta decay of (46)V is obtained from the difference of these two masses. With this precise Q value, the Ft value for this decay is determined with improved precision. An investigation of an earlier Q-value measurement for (46)V uncovers a set of 7 measurements that cannot be reconciled with modern data and affects previous evaluations of V(ud) from superallowed Fermi decays. A new evaluation, adding our new data and removing the discredited subset, yields new values for G(V) and V(ud). When combined with recent results for V(us), this yields modified constraints for the unitarity of the Cabibbo-Kobayashi-Maskawa matrix and other extensions of the standard model.
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Affiliation(s)
- G Savard
- Physics Division, Argonne National Laboratory, Illinois 60439, USA
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Clark JA, Savard G, Sharma KS, Vaz J, Wang JC, Zhou Z, Heinz A, Blank B, Buchinger F, Crawford JE, Gulick S, Lee JKP, Levand AF, Seweryniak D, Sprouse GD, Trimble W. Precise mass measurement of 68Se, a waiting-point nuclide along the rp process. Phys Rev Lett 2004; 92:192501. [PMID: 15169397 DOI: 10.1103/physrevlett.92.192501] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2003] [Indexed: 05/24/2023]
Abstract
Mass measurements of 68Ge, 68As, and 68Se have been obtained with the Canadian Penning Trap mass spectrometer. The results determine the mass excess of 68Se as -54 232(19) keV, the first measurement with a precision and reliability sufficient to address the light-curve and energy output of x-ray bursts as well as the abundances of the elements synthesized. Under typical conditions used for modeling x-ray bursts, 68Se is found to cause a significant delay in the rp process nucleosynthesis.
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Affiliation(s)
- J A Clark
- Department of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
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Crawford JE. Rhododendron poisoning in alpacas. Vet Rec 1999; 144:680. [PMID: 10404610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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Affiliation(s)
- C W Christian
- University of Pennsylvania School of Medicine, Division of General Pediatrics, Children's Hospital of Philadelphia 19104, USA
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Boos N, Krieg M, Pinard J, Huber G, Lunney MD, Meunier R, Hussonnois M, Constantinescu O, Kim JB, Briançon C, Crawford JE, Duong HT, Gangrski YP, Kühl T, Markov BN, Oganessian YT, Quentin P, Roussière B, Sauvage J. Nuclear properties of the exotic high-spin isomer 178Hfm2 from collinear laser spectroscopy. Phys Rev Lett 1994; 72:2689-2692. [PMID: 10055952 DOI: 10.1103/physrevlett.72.2689] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Buchinger F, Crawford JE, Dutta AK, Pearson JM, Tondeur F. Nuclear charge radii in modern mass formulas. Phys Rev C Nucl Phys 1994; 49:1402-1411. [PMID: 9969363 DOI: 10.1103/physrevc.49.1402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Crawford JE. Managed care consultant: the "house supervisor" alternative. Nurs Manag (Harrow) 1991; 22:75-6, 78. [PMID: 2027638 DOI: 10.1097/00006247-199105000-00018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Lee JK, Savard G, Crawford JE, Thekkadath G, Duong HT, Pinard J, Liberman S, Kilcher P, Obert J, Oms J, Putaux JC, Rouissière B, Sauvage J. Charge-radius changes in even-A platinum nuclei. Phys Rev C Nucl Phys 1988; 38:2985-2988. [PMID: 9955151 DOI: 10.1103/physrevc.38.2985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Clark WG, Crawford JE, Giles SL, Nash DL. The Vietnam veteran in the 80s. A guide to assessment & intervention for the occupational health nurse. AAOHN J 1987; 35:79-85. [PMID: 2950873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Abstract
Developed a brief, reliable, and valid measure of attitudes toward public exposure to sexual stimuli. Both advocates and opponents of public exposure to such stimuli typically cite presumed effects upon children. Consequently many of the Likert format items in the several versions of the scale deal with prescriptive and prescriptive beliefs about the exposure of children to sex related stimuli. Over a three-year period five different groups of respondents participated in the study. Both the longer and the shorter versions of the scale administered to these groups appear to have acceptable reliabilities. In an attempt to provide construct validation information, the relationships between the Acceptance of Public Sexuality Scale and several measures of traditionalism were examined. As expected, scores on the scale were inversely related to measures of traditionalism and positively related to measures of modernity Possible uses of the scale were discussed.
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Affiliation(s)
- J E Crawford
- Division of Educational Psychology, University of California, Berkeley, USA
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Broderson JR, Lindsey JR, Crawford JE. The role of environmental ammonia in respiratory mycoplasmosis of rats. Am J Pathol 1976; 85:115-30. [PMID: 970435 PMCID: PMC2032551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Young adult, pathogen-free rats of Sherman and Fischer (F344) substrains were inoculated intranasally with 10(8) colony-forming units (GFU) of M. pulmonis and housed for 4 to 6 weeks in environments with ammonia maintained at specific concentrations from 25 to 250 ppm. All levels of NH3--whether produced naturally from soiled bedding or derived from a purified source--significantly increased the severity of the rhinitis, otitis media, tracheitis, and pneumonia (including bronchiectasis) characteristic of murine respiratory mycoplasmosis (MRM). The prevalence of pneumonia, but not that of other respiratory lesions of MRM, showed a strong tendency to increase directly with environmental NH3 concentration. In contrast, NH3 exposure of rats not infected with M. pulmonis caused anatomic lesions that were unlike those of MRM and were limited to the nasal passages. It was concluded that environmental NH3, at concentrations commonly encountered in present day cage environments for rats, plays an important role in pathogenesis of MRM.
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Crawford JE, Crematy EP, Alexander AE. The effect of natural and synthetic polyelectrolytes on the crystallization of calcium oxalate. Aust J Chem 1968. [DOI: 10.1071/ch9681067] [Citation(s) in RCA: 52] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Crawford JE. New data on linkage group 3 markers in Nuerospora crassa. Aust J Biol Sci 1967; 20:121-5. [PMID: 6034338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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