Genome Sources for Species in Figure 5
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Data-Driven Identification of Potential Zika Virus Vectors Michelle V Evans1,2*, Tad a Dallas1,3, Barbara a Han4, Courtney C Murdock1,2,5,6,7,8, John M Drake1,2,8
RESEARCH ARTICLE Data-driven identification of potential Zika virus vectors Michelle V Evans1,2*, Tad A Dallas1,3, Barbara A Han4, Courtney C Murdock1,2,5,6,7,8, John M Drake1,2,8 1Odum School of Ecology, University of Georgia, Athens, United States; 2Center for the Ecology of Infectious Diseases, University of Georgia, Athens, United States; 3Department of Environmental Science and Policy, University of California-Davis, Davis, United States; 4Cary Institute of Ecosystem Studies, Millbrook, United States; 5Department of Infectious Disease, University of Georgia, Athens, United States; 6Center for Tropical Emerging Global Diseases, University of Georgia, Athens, United States; 7Center for Vaccines and Immunology, University of Georgia, Athens, United States; 8River Basin Center, University of Georgia, Athens, United States Abstract Zika is an emerging virus whose rapid spread is of great public health concern. Knowledge about transmission remains incomplete, especially concerning potential transmission in geographic areas in which it has not yet been introduced. To identify unknown vectors of Zika, we developed a data-driven model linking vector species and the Zika virus via vector-virus trait combinations that confer a propensity toward associations in an ecological network connecting flaviviruses and their mosquito vectors. Our model predicts that thirty-five species may be able to transmit the virus, seven of which are found in the continental United States, including Culex quinquefasciatus and Cx. pipiens. We suggest that empirical studies prioritize these species to confirm predictions of vector competence, enabling the correct identification of populations at risk for transmission within the United States. *For correspondence: mvevans@ DOI: 10.7554/eLife.22053.001 uga.edu Competing interests: The authors declare that no competing interests exist. -
Laboratory Studies of Anopheles Atroparvus in Relation To
[ 478 ] LABORATORY STUDIES OF ANOPHELES ATBOPARVUS IN RELATION TO MYXOMATOSIS BY C. H. ANDREWES, R. C. MUIRHEAD-THOMSON AND J. P. STEVENSON* National Institute for Medical Research, Mill Hill, London, N.W.I and the Infesta- tion Control Division, Ministry of Agriculture, Fisheries and Food, Tolworth, Surrey Though rabbit fleas (Spilopsyllus) are the principal vectors of myxomatosis in Britain (Armour & Thompson, 1955), Anopheles labranchiae atroparvus^ has been implicated in its transmission amongst domestic rabbits (Muirhead-Thomson, 1956). This mosquito was first shown to carry infection under laboratory condi- tions by Jacotot, Toumanoff, Vallee & Virat in France (1954). They found that in- fection was transmitted up to 21 days after the infective blood meal; that a single bite of the Anopheles was sufficient to produce infection and that a single mosquito could infect several rabbits one after the other at short intervals. These basic observations have been confirmed. In addition, it has been shown that infection can be produced by insertion of the mosquito's mouthparts alone, without actual feeding; that, after the first few days, virus is present only in the mouthparts of the insect; and that infected mosquitoes can remain infective for several months, much longer than is reported for this insect by the French workers or for other mosquitoes by Australian workers (Fenner, Day & Woodroofe, 1952). The possibility that myxoma virus multiplies in A. atroparvus will be discussed. METHODS We used both wild and laboratory-reared atroparvus, most frequently wild caught semi-hibernating insects. Rabbits used for feeding experiments were first anaes- thetized by intraperitoneal injection of nembutal. -
Mosquitoes of the Maculipennis Complex in Northern Italy
www.nature.com/scientificreports OPEN Mosquitoes of the Maculipennis complex in Northern Italy Mattia Calzolari1*, Rosanna Desiato2, Alessandro Albieri3, Veronica Bellavia2, Michela Bertola4, Paolo Bonilauri1, Emanuele Callegari1, Sabrina Canziani1, Davide Lelli1, Andrea Mosca5, Paolo Mulatti4, Simone Peletto2, Silvia Ravagnan4, Paolo Roberto5, Deborah Torri1, Marco Pombi6, Marco Di Luca7 & Fabrizio Montarsi4,6 The correct identifcation of mosquito vectors is often hampered by the presence of morphologically indiscernible sibling species. The Maculipennis complex is one of these groups that include both malaria vectors of primary importance and species of low/negligible epidemiological relevance, of which distribution data in Italy are outdated. Our study was aimed at providing an updated distribution of Maculipennis complex in Northern Italy through the sampling and morphological/ molecular identifcation of specimens from fve regions. The most abundant species was Anopheles messeae (2032), followed by Anopheles maculipennis s.s. (418), Anopheles atroparvus (28) and Anopheles melanoon (13). Taking advantage of ITS2 barcoding, we were able to fnely characterize tested mosquitoes, classifying all the Anopheles messeae specimens as Anopheles daciae, a taxon with debated rank to which we referred as species inquirenda (sp. inq.). The distribution of species was characterized by Ecological Niche Models (ENMs), fed by recorded points of presence. ENMs provided clues on the ecological preferences of the detected species, with An. daciae sp. inq. linked to stable breeding sites and An. maculipennis s.s. more associated to ephemeral breeding sites. We demonstrate that historical Anopheles malaria vectors are still present in Northern Italy. In early 1900, afer the incrimination of Anopheles mosquito as a malaria vector, malariologists made big attempts to solve the puzzling phenomenon of “Anophelism without malaria”, that is, the absence of malaria in areas with an abundant presence of mosquitoes that seemed to transmit the disease in other areas1. -
Plasmodium Ovale Malaria Acquired in Central Spain
DISPATCHES The Study Plasmodium ovale In March 2001, a 75-year-old woman was admitted to the Hospital Príncipe de Asturias in Madrid with a history of inter- Malaria Acquired in mittent fever for 1 week and no obvious infection. Intravenous treatment with ciprofloxacin was prescribed to treat provision- Central Spain ally diagnosed pyelonephritis. While in hospital, the patient Juan Cuadros,* Maria José Calvente,† had two episodes of high fever (39°C–40°C) separated by 48- Agustin Benito,‡ Juan Arévalo,* hour intervals with hypoxemia and deterioration of her general Maria Angeles Calero,* Javier Segura,† condition. On day 7 of fever, the hematologist advised the phy- and Jose Miguel Rubio‡ sician of the presence of rings inside the patient’s erythrocytes (parasitemia rate <1 %). A rapid antigen detection test (HRP2 We describe a case of locally acquired Plasmodium ovale detection; ICT Diagnostics, Amrad Corporation, Victor, Aus- malaria in Spain. The patient was a Spanish woman who had tralia) was done; the test returned negative results for Plasmo- never traveled out of Spain and had no other risk factors for dium falciparum and P. vivax. The sample was later identified malaria. Because patients with malaria may never have visited as P. ovale through microscopy and molecular studies at a ref- endemic areas, occasional transmission of malaria to Euro- erence malaria laboratory. Initial treatment with chloroquine pean hosts is a diagnostic and clinical challenge. followed by primaquine eliminated the infection successfully, and the patient recovered fully without complications. P. ovale was confirmed by semi-nested multiplex poly- n the first decades of the 20th century, malaria was a highly merase chain reaction (PCR) (8). -
Mosquitoes of the Genus Anopheles in Countries of the WHO European Region Having Faced a Recent Resurgence of Malaria
Within the framework of the new WHO regional strategy aimed at malaria elimination, special attention is given to operational research. In order to update scientifi c knowledge on malaria, the WHO Regional Offi ce for Europe has initiated a regional programme on operational research related to malaria entomology and vector control, which is being carried out successfully with the assistance of research institutions and partners in affected countries of Middle Asia and South Mosquitoes of the genus Caucasus. The objectives of the research are closely tied to the particular situation and problems identifi ed within a single country or a group of neighbouring countries. Anopheles in countries of The identifi cation and geographical distribution of Anopheles mosquitoes, the prevalence of sibling species and their role in malaria transmission, taxonomy, biology and ecology of malaria vectors are of particular interest in the Region. the WHO European Region The results of the research presented in this paper conducted over the past fi ve having faced a recent years in countries having faced a recent resurgence of malaria in the WHO European Region, will help national health authorities to re-examine the current vector control strategies, taking into account the updated knowledge of existing and potential resurgence of malaria malaria vectors. The threat of the re-establishment of malaria transmission in the Region should not be downgraded, despite the substantial progress achieved. In this connection, further research on the taxonomy, biology, ecology, behaviour and genetics of mosquitoes of the Anopheles genus will lead to a better understanding of the nature of malaria vectors and their role in transmission in the WHO European Region, and to providing advice on the ways to best address the problem. -
Anopheles Atroparvus from the Ebro Delta, Spain Lotty Birnberg1, Carles Aranda1,2, Sandra Talavera1, Ana I
Birnberg et al. Parasites Vectors (2020) 13:394 https://doi.org/10.1186/s13071-020-04268-y Parasites & Vectors METHODOLOGY Open Access Laboratory colonization and maintenance of Anopheles atroparvus from the Ebro Delta, Spain Lotty Birnberg1, Carles Aranda1,2, Sandra Talavera1, Ana I. Núñez1, Raúl Escosa3 and Núria Busquets1* Abstract Background: Historically, Anopheles atroparvus has been considered one of the most important malaria vectors in Europe. Since malaria was eradicated from the European continent, the interest in studying its vectors reduced signif- cantly. Currently, to better assess the potential risk of malaria resurgence on the continent, there is a growing need to update the data on susceptibility of indigenous Anopheles populations to imported Plasmodium species. In order to do this, as a frst step, an adequate laboratory colony of An. atroparvus is needed. Methods: Anopheles atroparvus mosquitoes were captured in rice felds from the Ebro Delta (Spain). Field-caught specimens were maintained in the laboratory under simulated feld-summer conditions. Adult females were artifcially blood-fed on fresh whole rabbit blood for oviposition. First- to fourth-instar larvae were fed on pulverized fsh and turtle food. Adults were maintained with a 10% sucrose solution ad libitum. Results: An An. atroparvus population from the Ebro Delta was successfully established in the laboratory. During the colonization process, feeding and hatching rates increased, while a reduction in larval mortality rate was observed. Conclusions: The present study provides a detailed rearing and maintenance protocol for An. atroparvus and a pub- licly available reference mosquito strain within the INFRAVEC2 project for further research studies involving vector- parasite interactions. -
Windborne Long-Distance Migration of Malaria Mosquitoes in the Sahel
1 Windborne long-distance migration of malaria mosquitoes in the Sahel 2 Huestis DLa, Dao Ab, Diallo Mb, Sanogo ZLb, Samake Db, Yaro ASb, Ousman Yb, Linton Y-Mf, Krishna Aa, Veru La, Krajacich 3 BJa, Faiman Ra, Florio Ja, Chapman JWc, Reynolds DRd, Weetman De, Mitchell Rg, Donnelly MJe, Talamas Eh,j, Chamorro Lh, 4 Strobach Ek and Lehmann Ta 5 6 a Laboratory of Malaria and Vector Research, NIAID, NIH. Rockville, MD, USA 7 b Malaria Research and Training Center (MRTC)/Faculty of Medicine, Pharmacy and Odonto-stomatology, Bamako, 8 Mali 9 c Centre for Ecology and Conservation, and Environment and Sustainability Inst., University of Exeter, Penryn, 10 Cornwall, UK and College of Plant Protection, Nanjing Agricultural University, Nanjing, P. R. China. 11 d Natural Resources Institute, University of Greenwich, Chatham, Kent ME4 4TB, and Rothamsted Research, 12 Harpenden, Hertfordshire AL5 2JQ, UK 13 e Department of Vector Biology, Liverpool School of Tropical Medicine, Liverpool, UK 14 f Walter Reed Biosystematics Unit, Smithsonian Institution Museum Support Center, Suitland MD, USA and 15 Department of Entomology, Smithsonian Institution, National Museum of Natural History, Washington DC, USA 16 g Smithsonian Institution - National Museum of Natural History, Washington DC, USA 17 h Systematic Entomology Laboratory - ARS, USDA, Smithsonian Institution - National Museum of Natural History, 18 Washington DC, USA 19 j Florida Department of Agriculture and Consumer Services, Department of Plant Industry, Gainesville FL, USA 20 k Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, USA 21 22 Over the past two decades, control efforts have halved malaria cases globally, yet burdens remain 23 high in much of Africa and elimination has not been achieved even where extreme reductions have 24 occurred over many years, such as in South Africa1,2. -
Behavioural, Ecological, and Genetic Determinants of Mating and Gene
Thesis committee Thesis supervisor Prof. dr. Marcel Dicke Professor of Entomology, Wageningen University Thesis co-supervisor Dr. Ir. Bart G.J. Knols Medical Entomologist, University of Amsterdam Other members Prof. dr. B.J. Zwaan, Wageningen University Prof. dr. P. Kager, University of Amsterdam Dr. Ir. P. Bijma, Wageningen University Dr. Ir. I.M.A. Heitkonig, Wageningen University This research was conducted under the auspices of the C. T. de Wit Graduate School for Production Ecology and Resource Conservation Behavioural, ecological and genetic determinants of mating and gene flow in African malaria mosquitoes Kija R.N. Ng’habi Thesis Submitted in fulfillment of the requirement for the degree of doctor at Wageningen University by the authority of the Rector Magnificus Prof. dr. M.J. Kropff, in the presence of the Thesis committee appointed by the Academic Board to be defended in public at on Monday 25 October 2010 at 11:00 a.m. in the Aula. Kija R.N. Ng’habi (2010) Behavioural, ecological and genetic determinants of mating and gene flow in African malaria mosquitoes PhD thesis, Wageningen University – with references – with summaries in Dutch and English ISBN – 978-90-8585-766-2 > Abstract Malaria is still a leading threat to the survival of young children and pregnant women, especially in the African region. The ongoing battle against malaria has been hampered by the emergence of drug and insecticide resistance amongst parasites and vectors, re- spectively. The Sterile Insect Technique (SIT) and genetically modified mosquitoes (GM) are new proposed vector control approaches. Successful implementation of these ap- proaches requires a better understanding of male mating biology of target mosquito species. -
Geographic Heterogeneity in Anopheles Albimanus Microbiota Is
bioRxiv preprint doi: https://doi.org/10.1101/2020.06.02.129619; this version posted June 2, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. Preprint © 2020 Dada et al. under Geographic heterogeneity in the terms of CC BY-NC- SA 4.0 Anopheles albimanus microbiota Version: June 02, 2020 is lost within one generation of laboratory colonization Nsa Dadaa,d , Ana Cristina Benedictb, Francisco Lópezb, Juan C. Lolb, Mili Shethc, Nicole Dzurisa, Norma Padillab and Audrey Lenharta Abstract Research on mosquito-microbe interactions may lead to new tools for mosquito and mosquito- borne disease control. To date, such research has largely utilized laboratory-reared mosquitoes that may lack the microbial diversity of wild populations. To better understand how mosquito microbiota may vary across different geographic locations and upon laboratory colonization, we characterized the microbiota of F1 progeny of wild-caught adult Anopheles albimanus from four locations in Guatemala using high throughput 16S rRNA amplicon sequencing. A total of 132 late instar larvae and 135 2-5day old, non-blood-fed virgin adult females were reared under identical laboratory conditions, pooled (3 individuals/pool) and analyzed. Larvae from mothers collected at different sites showed different microbial compositions (p=0.001; F = 9.5), but these differences were no longer present at the adult stage (p=0.12; F =1.6). This indicates that mosquitoes retain a significant portion of their field-derived microbiota throughout immature development but shed them before or during adult eclosion. -
Using Mobile Phones As Acoustic Sensors for High-Throughput
TOOLS AND RESOURCES Using mobile phones as acoustic sensors for high-throughput mosquito surveillance Haripriya Mukundarajan1, Felix Jan Hein Hol2, Erica Araceli Castillo1, Cooper Newby1, Manu Prakash2* 1Department of Mechanical Engineering, Stanford University, Stanford, United States; 2Department of Bioengineering, Stanford University, Stanford, United States Abstract The direct monitoring of mosquito populations in field settings is a crucial input for shaping appropriate and timely control measures for mosquito-borne diseases. Here, we demonstrate that commercially available mobile phones are a powerful tool for acoustically mapping mosquito species distributions worldwide. We show that even low-cost mobile phones with very basic functionality are capable of sensitively acquiring acoustic data on species-specific mosquito wingbeat sounds, while simultaneously recording the time and location of the human- mosquito encounter. We survey a wide range of medically important mosquito species, to quantitatively demonstrate how acoustic recordings supported by spatio-temporal metadata enable rapid, non-invasive species identification. As proof-of-concept, we carry out field demonstrations where minimally-trained users map local mosquitoes using their personal phones. Thus, we establish a new paradigm for mosquito surveillance that takes advantage of the existing global mobile network infrastructure, to enable continuous and large-scale data acquisition in resource-constrained areas. DOI: https://doi.org/10.7554/eLife.27854.001 Introduction Frequent, widespread, and high resolution surveillance of mosquitoes is essential to understanding *For correspondence: their complex ecology and behaviour. An in-depth knowledge of human—mosquito interactions is a [email protected] critical component in mitigating mosquito-borne diseases like malaria, dengue, and Zika (Macdon- Competing interests: The ald, 1956; World Health Organization, 2014; Godfray, 2013; Besansky, 2015; Kindhauser et al., authors declare that no 2016). -
Flight Tone Characterisation of the South American Malaria Vector Anopheles Darlingi (Diptera: Culicidae)
ORIGINAL ARTICLE Mem Inst Oswaldo Cruz, Rio de Janeiro, Vol. 116: e200497, 2021 1|6 Flight tone characterisation of the South American malaria vector Anopheles darlingi (Diptera: Culicidae) Jose Pablo Montoya1, Hoover Pantoja-Sánchez2,3, Sebastian Gomez1,2, Frank William Avila4, Catalina Alfonso-Parra1,4/+ 1Universidad CES, Instituto Colombiano de Medicina Tropical, Sabaneta, Antioquia, Colombia 2Universidad de Antioquia, Departamento de Ingeniería Electrónica, Medellín, Antioquia, Colombia 3Universidad de Antioquia, Programa de Estudio y Control de Enfermedades Tropicales, Medellín, Antioquia, Colombia 4Universidad de Antioquia, Max Planck Tandem Group in Mosquito Reproductive Biology, Medellín, Antioquia, Colombia BACKGROUND Flight tones play important roles in mosquito reproduction. Several mosquito species utilise flight tones for mate localisation and attraction. Typically, the female wingbeat frequency (WBF) is lower than males, and stereotypic acoustic behaviors are instrumental for successful copulation. Mosquito WBFs are usually an important species characteristic, with female flight tones used as male attractants in surveillance traps for species identification. Anopheles darlingi is an important Latin American malaria vector, but we know little about its mating behaviors. OBJECTIVES We characterised An. darlingi WBFs and examined male acoustic responses to immobilised females. METHODS Tethered and free flying male and female An. darlingi were recorded individually to determine their WBF distributions. Male-female acoustic interactions were analysed using tethered females and free flying males. FINDINGS Contrary to most mosquito species, An. darlingi females are smaller than males. However, the male’s WBF is ~1.5 times higher than the females, a common ratio in species with larger females. When in proximity to a female, males displayed rapid frequency modulations that decreased upon genitalia engagement. -
Distribution of Anopheles Daciae and Other Anopheles Maculipennis Complex Species in Serbia
Parasitology Research (2018) 117:3277–3287 https://doi.org/10.1007/s00436-018-6028-y ORIGINAL PAPER Distribution of Anopheles daciae and other Anopheles maculipennis complex species in Serbia Mihaela Kavran1 & Marija Zgomba1 & Thomas Weitzel2 & Dusan Petric1 & Christina Manz3 & Norbert Becker2 Received: 22 May 2018 /Accepted: 24 July 2018 /Published online: 28 August 2018 # The Author(s) 2018 Abstract Malaria is one of the most severe health problems facing the world today. Until the mid-twentieth century, Europe was an endemic area of malaria, with the Balkan countries being heavily infested. Sibling species belonging to the Anopheles maculipennis complex are well-known as effective vectors of Plasmodium in Europe. A vast number of human malaria cases in the past in the former Yugoslavia territory have stressed the significance of An. maculipennis complex species as primary and secondary vectors. Therefore, the present study evaluates the species composition, geographic distribution and abundance of these malaria vector species. Mosquitoes were collected in the northern Serbian province of Vojvodina and analysed by PCR- RFLP, multiplex PCR and sequencing of the ITS2 intron of genomic rDNA. Four sibling species of the An. maculipennis complex were identified. Both larvae and adults of the recently described species An. daciae were identified for the first time in Serbia. In 250 larval samples, 109 (44%) An. messeae,90(36%)An. maculipennis s.s., 33 (13%) An. daciae and 18 (7%) An. atroparvus were identified. In adult collections, 81 (47%) An. messeae,55(32%)An. daciae,33(19%)An. maculipennis s.s., and 3(2%)An. atroparvus were recorded. The most abundant species in Vojvodina was An.