Mating system of a vector of .

Curr Res Parasitol Vector Borne Dis

Western University of Health Sciences, 200 Mullins Dr, Lebanon, OR, 97355, USA.

Published: January 2025

snails are intermediate hosts for schistosome parasites, which cause morbidity and mortality in humans worldwide. We aimed to determine the mating system of , a hermaphroditic vector of schistosomiasis in the African Great Lakes, with the goal of informing the design of genetic studies such as linkage mapping to improve genome assembly and genetic association studies to identify snail resistance genes. To determine the relative rates of outcrossing selfing, we assayed the progeny of experimental crosses of snails in the laboratory using a PCR and restriction enzyme digest to determine snail genotype and parentage. Out of 7 experimental crosses and 56 total offspring assayed, 100% were derived from outcrossing rather than inbreeding. These results indicate that is primarily an outcrossing species, although previous work has shown that this species retains the capability of self-fertilization.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11772146PMC
http://dx.doi.org/10.1016/j.crpvbd.2025.100241DOI Listing

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