モスキート食べ物： <ol><li>食べ物：接地された魚の餌（Aquaricare）。小さいピンチを追加する必要があります。 </li><li>食べ物B：接地CATフード（ピュリナ）。小さいピンチを追加する必要があります。 </li><li>食品C：猫フード（ピュリナ）。 2錠を追加する必要があります。 </li></ol>ブラッド： 動物またはヒトの血液は、背面蚊に使用することができます。新鮮な血液が注射器で採取し、血液の各10 mlのCPD（抗凝固）の1mlを含む滅菌15ミリリットルファルコンチューブに入れ、その後穏やかに混合し、5分間2000rpmで、室温で遠心分離する。上清を他の血液細胞（例えばWBC）を含むバフィーコートを除去するために世話をして、破棄されます。 RBCペレットをピペッティングによりRPMI培地の等量に懸濁し、そしてさらにこの培地で3回洗浄する。最終洗浄後、ペレット化赤血球はRPMI培地の等量に再懸濁させ、4℃（8-10日間保持することができます）で保存。ちょうど授乳する前に、RBCは（RPMIで）セルダウンペレットに（5分間2000rpmで）遠心分離され、パックされたRBCは40％のヘマトクリットを取得するために血清（O +ヒト血清）中に再懸濁されている。血液を37℃で常に送りのために保持されている必要があります。 1日目： <ol><li> 3〜5日齢成体メスの蚊が卵を産むために血を供給されています。 </li><li>吸血のために、人工膜（パラフィルム）給電方式は、以下のように使用されます。 <ol><li>赤血球は（血液の準備については上記を参照）〜40％のヘマトクリット（パックされたRBC 40〜60％の血清）を取得するために血清不活化熱と混合されています。これは、ガラスのフィーダに追加されます。 </li><li>フィーダは、暖かい水ジャケット（37℃）に接続され、膜表面への蚊のアクセスを許可するようにケージに配置されます。 </li><li>蚊が〜30分間供給することが許可されています。 </li></ol></li></ol> 3日目： <ol><li>女性は二日、彼らが血を餌後に卵を産むでしょう。円錐形に包まれた小さなろ紙は、ろ紙​​が湿った得ることを確認して、蒸留水を含む小さなビーカーに入れられます。ビーカーは、産卵のた​​めに蚊の一晩ケージの内部に保持されます。 </li></ol> 4日目： <ol><li>蚊の卵を含む濾紙〜300 mlの蒸留水をプラスチックトレイに配置されます。食品のピンチをトレイに追加され、卵は、次の日の間に幼虫に孵化するために許可されています。 </li></ol>デイズ5 - 8： <ol><li>成長する幼虫は食品Cの2つの錠剤で毎日供給し、密度と人口のために監視されます。八日目（5日齢幼虫）で、幼虫の人口は、各トレイ内の食品の食品Cのと2つの錠剤をのピンチで、1トレーから〜10トレーに希釈される。 （〜30分） </li></ol> DAYS 9〜12： <ol><li>幼虫は12日目（9日齢幼虫）の食品Cに毎日供給され、水は新鮮な水で変更されており、食品は（食品Bと食物Cの2つの錠剤のピンチ）が追加されます。蛹はこの段階で開発を開始します。トレイは、大人のエスケープを避けるために、ネットで覆われている。 （〜80〜10分） </li></ol> 13日目 - 15： 3日間 - サナギは、次の2の成人に現れるが許可されています。食品は、慎重に大人のエスケープを避けるためにネットを除去することによって幼虫/蛹に毎日与えられます。 16日目： <ol><li>大人の真空に接続して吸引器を介してケージに収集されます。ケージには、10％ショ糖（オートクレーブ）やケージの処理中に発生する可能性のある潜在的な砂糖の流出を浸して底部にペーパータオルのライニングに浸したさ綿の芯を持つ小さな100mlのボトルで構成されています。 （〜30〜40分） </li></ol> 17日目 - 21： <ol><li>大人（男性と女性の両方）、彼らは次のサイクルを開始するために再び血液に供給される前に、10％ショ糖を与えた、4-5日のための昆虫館室に保管されています。同じ蚊が複数回産卵するために使用することができます。 </li><li>実験や飼育に必要されていない蚊は、冷凍庫にケージを置くことによって殺すことができます。使用されるトレーやケージは、それらが再び使用する前に洗浄し、乾燥する必要があります。 </li></ol> 注 ：蚊飼育法と異なるラボで多少のバラツキができる各種の方法があるかもしれません。

<ol>
	<li>Bangs, M. J., Soelarto, T., Barodji, B. P., Wicaksana, D. T., Boewono, <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Colonization+of+Anopheles+maculatus+from+Central+Java,+Indonesia.">Colonization of Anopheles maculatus from Central Java, Indonesia.</a> J Am Mosq Control Assoc. 18, 359-363 (2002).</li><li>Beier, M. S., Beier, J. C., Merdan, A. A., el Sawaf, B. M., Kadder, M. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Laboratory+rearing+techniques+and+adult+life+table+parameters+for+Anopheles+sergentii+from+Egypt.">Laboratory rearing techniques and adult life table parameters for Anopheles sergentii from Egypt.</a> J Am Mosq Control Assoc. 266, 266-270 (1987).</li><li>Benedict, M. Q., Crampton, J. M., Beard, C. B., Louis, C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> Care and maintenance of anopheline mosquitoes, The molecular biology of disease vectors: A methods manual. , 3-12 (1997).</li><li>Casanges, A. H., Mcgovran, E. R., Chiles, J. V. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Rearing+of+Anopheles+quadrimaculatus+Say+and+Aedes+aegypti+(L.)+in+the+laboratory.">Rearing of Anopheles quadrimaculatus Say and Aedes aegypti (L.) in the laboratory.</a> Mosq News. 9, 112-117 (1949).</li><li>Merritt, R. W., Dadd, R. H., Walker, E. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Feeding+behavior,+natural+food+and+nutritional+relation+ships+of+larval+mosquitoes.">Feeding behavior, natural food and nutritional relation ships of larval mosquitoes.</a> Annual Rev. Entomol. 37, 349-376 (1992).</li><li>Nasirian, H., Ladonni, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Artificial+bloodfeeding+of+Anopheles+stephensi+on+a+membrane+apparatus+with+human+whole+blood.">Artificial bloodfeeding of Anopheles stephensi on a membrane apparatus with human whole blood.</a> J Am Mosq Control Assoc. 22, 54-56 (2006).</li><li>Ng'habi, K. R., John, B., Nkwengulila, G., Knols, B. G., Killeen, G. F., Ferguson, H. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Effect+of+larval+crowding+on+mating+competitiveness+of+Anopheles+gambiae+mosquitoes.">Effect of larval crowding on mating competitiveness of Anopheles gambiae mosquitoes.</a> Malar J. 30 (4), 49 (2005).</li><li>Stobart, R. H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Factors+affecting+the+control+of+body+volume+in+the+larvae+of+the+mosquitoes+Aedes+aegypti+and+Aedes+detritus.">Factors affecting the control of body volume in the larvae of the mosquitoes Aedes aegypti and Aedes detritus.</a> Edw. J. Exp. Boil. 54, 67-82 (1971).</li></ol>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">	
		
		<div>
		<table border="1">
		<thead>
		<tr>
		<th>Material Name</th>
		<th>Type</th>
		<th>Company</th>
		<th>Catalogue Number</th>
		<th>Comment</th>
		</tr>
		</thead>
		<tbody>
		
<tr>
<td>Food A</td>
<td>&nbsp;</td>
<td>Aquaricare</td>
<td>&nbsp;</td>
<td>Grounded fish food. A small pinch needs to be added.</td>
</tr>
<tr>
<td>Food B</td>
<td>&nbsp;</td>
<td>Purina</td>
<td>&nbsp;</td>
<td>Grounded cat food. A small pinch needs to be added.</td>
</tr>
<tr>
<td>Food C</td>
<td>&nbsp;</td>
<td>Purina</td>
<td>&nbsp;</td>
<td>Cat food. Two tablets needs to be added</td>
</tr>
<tr>
<td>RBC</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>prepared red blood cells: 40% hematocrit in human serum</td>
</tr>
<tr>
<td>RPMI</td>
<td>Medium</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>CPD</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>anticoagulant</td>
</tr>
<tr>
<td>serum</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>O+ human serum</td>
</tr>
<tr>
<td>Mosquito feeder</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>parafilm</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<tr>
<td>Anopheles gambiae</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>mosquitos</td>
</tr>
<tr>
<td>10% sucrose</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>mosquito food</td>
</tr>
<tr>
<td>insectary</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>		</tbody>
		</table>
		</div>

protocol for mosquito rearing (a. gambiae)

このプロトコルは、昆虫館での蚊の飼育について説明します。昆虫館のお部屋は12時間で、℃、〜80％湿度28で保持されます。昼/夜サイクル。この手順では、蚊のケージ10％滅菌ショ糖溶液、ペーパータオル、ビーカー、ワットマン濾紙、ガラスフィーダー、ヒトの血液や血清、水浴、パラフィルム、蒸留水、きれいなプラスチックトレイ、蚊の食べ物を（説明​​する必要があります以下）、成人を収集するトレー、真空、及び収集チャンバーをカバーするために蚊帳。

Watch this Scientific Journal Video about Protocol for Mosquito Rearing A. gambiae at JoVE.com

Protocol for Mosquito Rearing A. gambiae

このビデオでは、実験室で背面ハマダラカに使用される一般的なテクニックを示しています。実験室での蚊の世話をするための方法は、吸血性の成人に蛹に幼虫から生物のライフサイクルの全段階を経て実証されています。

モスキート子育てのためのプロトコル（A. gambiae）

This protocol describes mosquito rearing in the insectary. The insectary rooms are maintained at 28&deg;C and ~80% humidity, with a 12 hr. day/night ...

Research

JoVE Journal

Biology

Protocol for Mosquito Rearing (A. gambiae)

23.0K ビュー.  Johns Hopkins University. このビデオでは、実験室で背面ハマダラカに使用される一般的なテクニックを示しています。実験室での蚊の世話をするための方法は、吸血性の成人に蛹に幼虫から生物のライフサイクルの全段階を経て実証されています。

ビデオ: Protocol for Mosquito Rearing A. gambiae

Protocol for RNAi Assays in Adult Mosquitoes (A. gambiae)

Reverse genetic approaches have proven extremely useful for determining  which genes underly resistance to vector pathogens in mosquitoes.  This video protocol illustrates a method used by the Dimopoulos lab to inject dsRNA into Anopheles gambiae mosquitoes, which harbor the malaria parasite.  The technique manipulating the injection setup and injecting dsRNA into the thorax is illustrated.

Protocol for RNAi Assays in Adult Mosquitoes A. gambiae

Reverse genetic approaches have proven extremely useful for determining which genes underly resistance to vector pathogens in mosquitoes. This video protocol illustrates a method used by the Dimopoulos lab to inject dsRNA into Anopheles gambiae mosquitoes, which harbor the malaria parasite. The technique manipulating the injection setup and injecting dsRNA into the thorax is illustrated.

成虫（A. gambiae）におけるRNAiのアッセイのためのプロトコル

Reverse genetic approaches have proven extremely useful for determining  which genes underly resistance to vector pathogens in mosquitoes.  This video ...

生物学

Building a Better Mosquito: Identifying the Genes Enabling Malaria and Dengue Fever Resistance in A. gambiae and A. aegypti Mosquitoes

In this interview, George Dimopoulos focuses on the physiological mechanisms used by mosquitoes to combat Plasmodium falciparum and dengue virus infections.   Explanation is given for how key refractory genes, those genes conferring resistance to vector pathogens, are identified in the mosquito and how this knowledge can be used to generate transgenic mosquitoes that are unable to carry the malaria parasite or dengue virus.

In this interview, George Dimopoulos focuses on the physiological mechanisms used by mosquitoes to combat Plasmodium falciparum and dengue virus infections. Explanation is given for how key refractory genes, those genes conferring resistance to vector pathogens, are identified in the mosquito and how this knowledge can be used to generate transgenic mosquitoes that are unable to carry the malaria parasite or dengue virus.

より良い蚊の構築：A. gambiaeとA.ネッタイシマカ蚊のマラリアとデング熱の抵抗を使用可能にする遺伝子を特定

In this interview, George Dimopoulos focuses on the physiological mechanisms used by mosquitoes to combat Plasmodium falciparum and dengue virus ...

A Protocol for the Production of KLRG1 Tetramer

Killer cell lectin-like receptor G1 (KLRG1) is a type II transmembrane glycoprotein inhibitory receptor belonging to the C type lectin-like superfamily. KLRG1 exists both as a monomer and as a disulfide-linked homodimer. This well-conserved receptor is found on the most mature and recently activated NK cells as well as on a subset of effector/memory T cells.
Using KLRG1 tetramer as well as other methods, E-, N-, and R-cadherins were identified as KLRG1 ligands. These Ca2+-dependent cell-cell adhesion molecules comprises of an extracellular domain containing five cadherin repeats responsible for cell-cell interactions, a transmembrane domain and a cytoplasmic domain that is linked to the actin cytoskeleton. 
Generation of the KLRG1 tetramer was essential to the identification of the KLRG1 ligands. KLRG1 tetramer is also a unique tool to elucidate the roles cadherin and KLRG1 play in regulating the immune response and tissue integrity.

This protocol describes the production of KLRG1 tetramer, which is a powerful tool for the analysis of KLRG1 ligands.

KLRG1テトラマーの生産のためのプロトコル

Killer cell lectin-like receptor G1 (KLRG1) is a type II transmembrane glycoprotein inhibitory receptor belonging to the C type lectin-like superfamily. ...

An Optimized Protocol for Rearing Fopius arisanus, a Parasitoid of Tephritid Fruit Flies

Fopius arisanus (Sonan) is an important parasitoid of Tephritid fruit flies for at least two reasons. First, it is the one of only three opiine parasitoids known to infect the host during the egg stage1. Second, it has a wide range of potential fruit fly hosts. Perhaps due to its life history, F. arisanus has been a successfully used for biological control of fruit flies in multiple tropical regions2-4. One impediment to the wide use of F. arisanus for fruit fly control is that it is difficult to establish a stable laboratory colony5-9. Despite this difficulty, in the 1990s USDA researchers developed a reliable method to maintain laboratory populations of F. arisanus10-12. There is significant interest in F. arisanus biology13,14, especially regarding its ability to colonize a wide variety of Tephritid hosts14-17; interest is especially driven by the alarming spread of Bactrocera fruit fly pests to new continents in the last decade18. Further research on F. arisanus and additional deployments of this species as a biological control agent will benefit from optimizations and improvements of rearing methods. In this protocol and associated video article we describe an optimized method for rearing F. arisanus based on a previously described approach12. The method we describe here allows rearing of F. arisanus in a small scale without the use of fruit, using materials available in tropical regions around the world and with relatively low manual labor requirements.

An Optimized Protocol for Rearing Fopius arisanus, a Parasitoid of Tephritid Fruit Flies

Fopius arisanus is an egg-larval parasitoid of Tephritid fruit flies that is successfully used in biological control of these important tropical pests. We describe here an optimized protocol for rearing F. arisanus on a small scale using readily available materials.

子育てに最適化されたプロトコル Fopius arisanus、Tephritid果実の寄生ハエ

Fopius arisanus (Sonan) is an important parasitoid of Tephritid fruit flies for at least two reasons. First, it is the one of only three opiine ...

SIVQ-LCM Protocol for the ArcturusXT Instrument

SIVQ-LCM is a new methodology that automates and streamlines the more traditional, user-dependent laser dissection process.&#160;It aims to create an advanced, rapidly customizable laser dissection platform technology. In this report, we describe the integration of the image analysis software Spatially Invariant Vector Quantization (SIVQ) onto the ArcturusXT instrument. The ArcturusXT system contains both an infrared (IR) and ultraviolet (UV) laser, allowing for specific cell or large area dissections. The principal goal is to improve the speed, accuracy, and reproducibility of the laser dissection to increase sample throughput. This novel approach facilitates microdissection of both animal and human tissues in research and clinical workflows.

SIVQ-LCM is an innovative approach that harnesses a computer algorithm, Spatially Invariant Vector Quantization (SIVQ), to drive the laser capture microdissection (LCM) process. The SIVQ-LCM workflow greatly improves the speed and accuracy of microdissection, with applications in both the research and clinical settings.

ArcturusXT楽器のSIVQ-LCMプロトコル

SIVQ-LCM is a new methodology that automates and streamlines the more traditional, user-dependent laser dissection process.&#160;It aims to create an ...

An Experimental and Bioinformatics Protocol for RNA-seq Analyses of Photoperiodic Diapause in the Asian Tiger Mosquito, Aedes albopictus

Photoperiodic diapause is an important adaptation that allows individuals to escape harsh seasonal environments via a series of physiological changes, most notably developmental arrest and reduced metabolism. Global gene expression profiling via RNA-Seq can provide important insights into the transcriptional mechanisms of photoperiodic diapause. The Asian tiger mosquito, Aedes albopictus, is an outstanding organism for studying the transcriptional bases of diapause due to its ease of rearing, easily induced diapause, and the genomic resources available. This manuscript presents a general experimental workflow for identifying diapause-induced transcriptional differences in A. albopictus. Rearing techniques, conditions necessary to induce diapause and non-diapause development, methods to estimate percent diapause in a population, and RNA extraction and integrity assessment for mosquitoes are documented. A workflow to process RNA-Seq data from Illumina sequencers culminates in a list of differentially expressed genes. The representative results demonstrate that this protocol can be used to effectively identify genes differentially regulated at the transcriptional level in A. albopictus due to photoperiodic differences. With modest adjustments, this workflow can be readily adapted to study the transcriptional bases of diapause or other important life history traits in other mosquitoes.

An Experimental and Bioinformatics Protocol for RNA-seq Analyses of Photoperiodic Diapause in the Asian Tiger Mosquito, Aedes albopictus

RNA-Seq analyses are becoming increasingly important for identifying the molecular underpinnings of adaptive traits in non-model organisms. Here, a protocol to identify differentially expressed genes between diapause and non-diapause Aedes albopictus mosquitoes is described, from mosquito rearing, to RNA sequencing and bioinformatics analyses of RNA-Seq data.

アジアのタイガーモスキートにおける日長休眠のRNA-seqの分析のための実験とバイオインフォマティクス·プロトコル、<em&gt;ヒトスジシマカ</em

Photoperiodic diapause is an important adaptation that allows individuals to escape harsh seasonal environments via a series of physiological changes, ...

RNAi Trigger Delivery into Anopheles gambiae Pupae

RNA interference (RNAi), a naturally occurring phenomenon in eukaryotic organisms, is an extremely valuable tool that can be utilized in the laboratory for functional genomic studies. The ability to knockdown individual genes selectively via this reverse genetic technique has allowed many researchers to rapidly uncover the biological roles of numerous genes within many organisms, by evaluation of loss-of-function phenotypes. In the major human malaria vector Anopheles gambiae, the predominant method used to reduce the function of targeted genes involves injection of double-stranded (dsRNA) into the hemocoel of the adult mosquito. While this method has been successful, gene knockdown in adults excludes the functional assessment of genes that are expressed and potentially play roles during pre-adult stages, as well as genes that are expressed in limited numbers of cells in adult mosquitoes. We describe a method for the injection of Serine Protease Inhibitor 2 (SRPN2) dsRNA during the early pupal stage and validate SRPN2 protein knockdown by observing decreased target protein levels and the formation of melanotic pseudo-tumors in SRPN2 knockdown adult mosquitoes. This evident phenotype has been described previously for adult stage knockdown of SRPN2 function, and we have recapitulated this adult phenotype by SRPN2 knockdown initiated during pupal development. When used in conjunction with a dye-labeled dsRNA solution, this technique enables easy visualization by simple light microscopy of injection quality and distribution of dsRNA in the hemocoel.

RNAi Trigger Delivery into Anopheles gambiae Pupae

RNA interference (RNAi) is an extremely valuable tool for uncovering gene function. However, the ability to target genes using RNAi during pre-adult stages is limited in the major human malaria vector Anopheles gambiae. We describe an RNAi protocol to reduce gene function via direct injection during pupal development.

RNAiのトリガ配信へ<em&gt;ハマダラカ</em&gt;蛹

RNA interference (RNAi), a naturally occurring phenomenon in eukaryotic organisms, is an extremely valuable tool that can be utilized in the laboratory ...

IR-TEx: An Open Source Data Integration Tool for Big Data Transcriptomics Designed for the Malaria Vector Anopheles gambiae

IR-TEx is an application written in Shiny (an R package) that allows exploration of the expression of (as well as assigning functions to) transcripts whose expression is associated with insecticide resistance phenotypes in Anopheles gambiae mosquitoes. The application can be used online or downloaded and used locally by anyone. The local application can be modified to add new insecticide resistance datasets generated from multiple -omics platforms. This guide demonstrates how to add new datasets and handle missing data. Furthermore, IR-TEx can be completely and easily recoded to use-omics datasets from any experimental data, making it a valuable resource to many researchers. The protocol illustrates the utility of IR-TEx in identifying new insecticide resistance candidates using the the microsomal glutathione transferase, GSTMS1, as an example. This transcript is upregulated in multiple pyrethroid resistant populations from C&#244;te D&#39;Ivoire and Burkina Faso. The identification of co-correlated transcripts provides further insight into the putative roles of this gene.

IR-TEx: An Open Source Data Integration Tool for Big Data Transcriptomics Designed for the Malaria Vector Anopheles gambiae

IR-TEx explores insecticide resistance-related transcriptional profiles in the species Anopheles gambiae. Provided here are full instructions for using the application, modifications for exploring multiple transcriptomic datasets, and using the framework to build an interactive database for collections of transcriptomic data from any organism, generated in any platform.

IR-TEx:マラリアベクトルアノフェレスガンビア用に設計されたビッグデータトランスクリプトミクスのためのオープンソースデータ統合ツール

IR-TEx is an application written in Shiny (an R package) that allows exploration of the expression of (as well as assigning functions to) transcripts ...

A Step-by-Step Guide to Mosquito Electroantennography

Female mosquitoes are the deadliest animals on earth, claiming the lives of more than 1 million people every year due to pathogens they transmit when acquiring a blood-meal. To locate a host to feed on, mosquitoes rely on a wide range of sensory cues, including visual, mechanical, thermal, and olfactory. The study details a technique, electroantennography (EAG), that allows researchers to assess whether the mosquitoes can detect individual chemicals and blends of chemicals in a concentration-dependent manner. When coupled with gas-chromatography (GC-EAG), this technique allows to expose the antennae to a full headspace/complex mixture and determines which chemicals present in the sample of interest, the mosquito can detect. This is applicable to host body odors as well as plant floral bouquets or other ecologically relevant odors (e.g., oviposition sites odorants). Here, we described a protocol that permits long durations of preparation responsiveness time and is applicable to both female and male mosquitoes from multiple genera, including Aedes, Culex, Anopheles, and Toxorhynchites mosquitoes. As olfaction plays a major part in mosquito-host interactions and mosquito biology in general, EAGs and GC-EAG can reveal compounds of interest for the development of new disease vector control strategies (e.g., baits). Complemented with behavioral assays, the valence (e.g., attractant, repellent) of each chemical can be determined.

The present article details a step-by-step protocol for successful and low noise electroantennograms in several genera of mosquitoes, including both females and males.

蚊のエレクトロアンテノグラフィーのステップバイステップガイド

Female mosquitoes are the deadliest animals on earth, claiming the lives of more than 1 million people every year due to pathogens they transmit when ...

A Magnetic-Bead-Based Mosquito DNA Extraction Protocol for Next-Generation Sequencing

A recently published DNA extraction protocol using magnetic beads and an automated DNA extraction instrument suggested that it is possible to extract high quality and quantity DNA from a well-preserved individual mosquito sufficient for downstream whole genome sequencing. However, reliance on an expensive automated DNA extraction instrument can be prohibitive for many laboratories. Here, the study provides a budget-friendly magnetic-bead-based DNA extraction protocol, which is suitable for low to medium throughput. The protocol described here was successfully tested using individual Aedes aegypti mosquito samples. The reduced costs associated with high quality DNA extraction will increase the application of high throughput sequencing to resource limited labs and studies.

Described here is a DNA extraction protocol using magnetic beads to produce high quality DNA extractions from mosquitoes. These extractions are suitable for a downstream next-generation sequencing approach.

次世代シーケンシングのための磁気ビーズベースの蚊DNA抽出プロトコル

A recently published DNA extraction protocol using magnetic beads and an automated DNA extraction instrument suggested that it is possible to extract high ...