期刊
JOURNAL OF MEDICAL ENTOMOLOGY
卷 59, 期 3, 页码 1060-1064出版社
OXFORD UNIV PRESS INC
DOI: 10.1093/jme/tjac008
关键词
Anopheles; malaria vector; molecular identification; French Guiana
资金
- French Army [LR607e]
- Investissement d'Avenir' grant [ANR-10-LABX-25-01]
- European commission [REGPOT-CT-2011-285837-STRonGer]
This study developed a DNA-based identification technique to supplement traditional morphological identification methods for the discrimination of Anopheles mosquitoes collected in French Guiana. The PCR-RFLP assay proved to be a high throughput, fast, and cost-effective method for unambiguous discrimination of 15 Anopheles species.
Precise identification of anopheline species is paramount for incrimination of malaria vectors and implementation of a sustainable control program. Anopheline mosquitoes are routinely identified morphologically, a technique that is time-consuming, needs high level of expertise, and prone to misidentifications especially when considering Amazonian species. The aim of this study was therefore to develop a DNA-based identification technique to supplement traditional morphological identification methods for the discrimination of anopheline mosquitoes collected in French Guiana. The internal transcribed spacer 2 (ITS2) region of ribosomal DNA (rDNA) for anopheline species was amplified by polymerase chain reaction (PCR), and digested with AluI/MspI restriction enzymes. PCR-restriction fragments length polymorphism (RFLP) assay was compared to sequencing of the ITS2 region for validation. Fifteen Anopheles species have shown distinct PCR-RFLP profiles. A concordance of 100% was obtained when identification by PCR-RFLP was compared to sequencing of ITS2. A high throughput, fast, and cost-effective PCR-RFLP assay has been developed for unambiguous discrimination of fifteen anopheline mosquito species from French Guiana including primary and suspected secondary malaria vectors.
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