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Updated: May 7, 2026
A Multi-detection Assay for Malaria Transmitting Mosquitoes
Published on: February 28, 2015
A new multiplex SNP genotyping assay for detecting hybridization and introgression between the M and S molecular
Yoosook Lee1, Clare D Marsden, Catelyn Nieman
1Vector Genetics Laboratory, Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California - Davis, Davis, CA, 95616, USA.
Abstract:
The M and S forms of Anopheles gambiae have been the subject of intense study, but are morphologically indistinguishable and can only be identified using molecular techniques. PCR-based assays to distinguish the two forms have been designed and applied widely. However, the application of these assays towards identifying hybrids between the two forms, and backcrossed hybrids in particular, has been problematic as the currently available diagnostic assays are based on single locus and/or are located within a multicopy gene. Here, we present an alternative genotyping method for detecting hybridization and introgression between M and S molecular forms based on a multilocus panel of single-nucleotide polymorphisms (SNPs) fixed between the M and S forms. The panel of SNPs employed is located in so-called islands of divergence leading us to describe this method as the 'Divergence Island SNP' (DIS) assay. We show this multilocus SNP genotyping approach can robustly and accurately detect F1 hybrids as well as backcrossed individuals.
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