The importance of morphological identification of African anopheline mosquitoes (Diptera: Culicidae) for malaria control programmes

Abstract Background The correct identification of disease vectors is the first step towards implementing an effective control programme. Traditionally, for malaria control, this was based on the morphological differences observed in the adults and larvae between different mosquito species. However,...

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Main Authors: Erica Erlank, Lizette L. Koekemoer, Maureen Coetzee
Format: Article
Language:English
Published: BMC 2018-01-01
Series:Malaria Journal
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12936-018-2189-5
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author Erica Erlank
Lizette L. Koekemoer
Maureen Coetzee
author_facet Erica Erlank
Lizette L. Koekemoer
Maureen Coetzee
author_sort Erica Erlank
collection DOAJ
description Abstract Background The correct identification of disease vectors is the first step towards implementing an effective control programme. Traditionally, for malaria control, this was based on the morphological differences observed in the adults and larvae between different mosquito species. However, the discovery of species complexes meant that genetic tools were needed to separate the sibling species and today there are standard molecular techniques that are used to identify the two major malaria vector groups of mosquitoes. On the assumption that species-diagnostic DNA polymerase chain reaction (PCR) assays are highly species-specific, experiments were conducted to investigate what would happen if non-vector species were randomly included in the molecular assays. Methods Morphological keys for the Afrotropical Anophelinae were used to provide the a priori identifications. All mosquito specimens were then subjected to the standard PCR assays for members of the Anopheles gambiae complex and Anopheles funestus group. Results One hundred and fifty mosquitoes belonging to 11 morphological species were processed. Three species (Anopheles pretoriensis, Anopheles rufipes and Anopheles rhodesiensis) amplified members of the An. funestus group and four species (An. pretoriensis, An. rufipes, Anopheles listeri and Anopheles squamosus) amplified members of the An. gambiae complex. Conclusions Morphological identification of mosquitoes prior to PCR assays not only saves time and money in the laboratory, but also ensures that data received by malaria vector control programmes are useful for targeting the major vectors.
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spelling doaj.art-2bfab6c3a48c43438962d6241631ec472022-12-21T20:36:27ZengBMCMalaria Journal1475-28752018-01-011711710.1186/s12936-018-2189-5The importance of morphological identification of African anopheline mosquitoes (Diptera: Culicidae) for malaria control programmesErica Erlank0Lizette L. Koekemoer1Maureen Coetzee2Wits Research Institute for Malaria, MRC Collaborating Centre for Multidisciplinary Research on Malaria, School of Pathology, Faculty of Health Sciences, University of the WitwatersrandWits Research Institute for Malaria, MRC Collaborating Centre for Multidisciplinary Research on Malaria, School of Pathology, Faculty of Health Sciences, University of the WitwatersrandWits Research Institute for Malaria, MRC Collaborating Centre for Multidisciplinary Research on Malaria, School of Pathology, Faculty of Health Sciences, University of the WitwatersrandAbstract Background The correct identification of disease vectors is the first step towards implementing an effective control programme. Traditionally, for malaria control, this was based on the morphological differences observed in the adults and larvae between different mosquito species. However, the discovery of species complexes meant that genetic tools were needed to separate the sibling species and today there are standard molecular techniques that are used to identify the two major malaria vector groups of mosquitoes. On the assumption that species-diagnostic DNA polymerase chain reaction (PCR) assays are highly species-specific, experiments were conducted to investigate what would happen if non-vector species were randomly included in the molecular assays. Methods Morphological keys for the Afrotropical Anophelinae were used to provide the a priori identifications. All mosquito specimens were then subjected to the standard PCR assays for members of the Anopheles gambiae complex and Anopheles funestus group. Results One hundred and fifty mosquitoes belonging to 11 morphological species were processed. Three species (Anopheles pretoriensis, Anopheles rufipes and Anopheles rhodesiensis) amplified members of the An. funestus group and four species (An. pretoriensis, An. rufipes, Anopheles listeri and Anopheles squamosus) amplified members of the An. gambiae complex. Conclusions Morphological identification of mosquitoes prior to PCR assays not only saves time and money in the laboratory, but also ensures that data received by malaria vector control programmes are useful for targeting the major vectors.http://link.springer.com/article/10.1186/s12936-018-2189-5AnophelesAfricaIdentificationMorphologyPCRMolecular
spellingShingle Erica Erlank
Lizette L. Koekemoer
Maureen Coetzee
The importance of morphological identification of African anopheline mosquitoes (Diptera: Culicidae) for malaria control programmes
Malaria Journal
Anopheles
Africa
Identification
Morphology
PCR
Molecular
title The importance of morphological identification of African anopheline mosquitoes (Diptera: Culicidae) for malaria control programmes
title_full The importance of morphological identification of African anopheline mosquitoes (Diptera: Culicidae) for malaria control programmes
title_fullStr The importance of morphological identification of African anopheline mosquitoes (Diptera: Culicidae) for malaria control programmes
title_full_unstemmed The importance of morphological identification of African anopheline mosquitoes (Diptera: Culicidae) for malaria control programmes
title_short The importance of morphological identification of African anopheline mosquitoes (Diptera: Culicidae) for malaria control programmes
title_sort importance of morphological identification of african anopheline mosquitoes diptera culicidae for malaria control programmes
topic Anopheles
Africa
Identification
Morphology
PCR
Molecular
url http://link.springer.com/article/10.1186/s12936-018-2189-5
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