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dc.contributor.authorSaarman, Norah P.
dc.contributor.authorOpiro, Robert
dc.contributor.authorHyseni, Chaz
dc.contributor.authorEchodu, Richard
dc.contributor.authorOpiyo, Elizabeth A.
dc.contributor.authorDion, Kirstin
dc.contributor.authorJohnson, Thomas
dc.contributor.authorAksoy, Serap
dc.contributor.authorCaccone, Adalgisa
dc.date.accessioned2022-11-20T11:07:06Z
dc.date.available2022-11-20T11:07:06Z
dc.date.issued2019
dc.identifier.citationSaarman, N. P., Opiro, R., Hyseni, C., Echodu, R., Opiyo, E. A., Dion, K., ... & Caccone, A. (2019). The population genomics of multiple tsetse fly (Glossina fuscipes fuscipes) admixture zones in Uganda. Molecular ecology, 28(1), 66-85. doi:10.1111/mec.14957.en_US
dc.identifier.other10.1111/mec.14957.
dc.identifier.urihttps://nru.uncst.go.ug/handle/123456789/5364
dc.description.abstractUnderstanding the mechanisms that enforce, maintain or reverse the process of speciation is an important challenge in evolutionary biology. This study investigates the patterns of divergence and discusses the processes that form and maintain divergent lineages of the tsetse fly Glossina fuscipes fuscipes in Uganda. We sampled 251 flies from 18 sites spanning known genetic lineages and the four admixture zones between them. We apply population genomics, hybrid zone and approximate Bayesian computation to the analysis of three types of genetic markers: 55,267 double-digest restriction site-associated DNA (ddRAD) SNPs to assess genome-wide admixture, 16 microsatellites to provide continuity with published data and accurate biogeographic modelling, and a 491-bp fragment of mitochondrial cytochrome oxidase I and II to infer maternal inheritance patterns. Admixture zones correspond with regions impacted by the reorganization of Uganda's river networks that occurred during the formation of the West African Rift system over the last several hundred thousand years. Because tsetse fly population distributions are defined by rivers, admixture zones likely represent both old and new regions of secondary contact. Our results indicate that older hybrid zones contain mostly parental types, while younger zones contain variable hybrid types resulting from multiple generations of interbreeding. These findings suggest that reproductive barriers are nearly complete in the older admixture zones, while nearly absent in the younger admixture zones. Findings are consistent with predictions of hybrid zone theory: Populations in zones of secondary contact transition rapidly from early to late stages of speciation or collapse all together.en_US
dc.language.isoenen_US
dc.publisherSaarman, N. P., Opiro, R., Hyseni, C., Echodu, R., Opiyo, E. A., Dion, K., ... & Caccone, A. (2019). The population genomics of multiple tsetse fly (Glossina fuscipes fuscipes) admixture zones in Uganda. Molecular ecology, 28(1), 66-85.en_US
dc.subjectPopulation genomicsen_US
dc.subjectMultiple tsetse fly (Glossina fuscipes fuscipes)en_US
dc.subjectUgandaen_US
dc.titleThe population genomics of multiple tsetse fly (Glossina fuscipes fuscipes) admixture zones in Ugandaen_US
dc.typeArticleen_US


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