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    Comparative phylogeography of Aedes mosquitoes and the role of past climatic change for evolution within Africa

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    U18ArtBennettComparativeInthomDev.pdf (958.2Kb)
    Date
    2018-03
    Author
    Bennett, K.L.
    Kaddumukasa, M.
    Shija, F.
    Djouaka, R.
    Misinzo, G.
    Lutwama, J.
    Linton, Y.M.
    Walton, C.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    The study of demographic processes involved in species diversification and evolution ultimately provides explanations for the complex distribution of biodiversity on earth, indicates regions important for the maintenance and generation of biodiversity, and identifies biological units important for conservation or medical consequence. African and forest biota have both received relatively little attention with regard to understanding their diversification, although one possible mechanism is that this has been driven by historical climate change. To investigate this, we implemented a standard population genetics approach along with Approximate Bayesian Computation, using sequence data from two exon‐primed intron‐crossing (EPIC) nuclear loci and mitochondrial cytochrome oxidase subunit I, to investigate the evolutionary history of five medically important and inherently forest dependent mosquito species of the genus Aedes. By testing different demographic hypotheses, we show that Aedes bromeliae and Aedes lilii fit the same model of lineage diversification, admixture, expansion, and recent population structure previously inferred for Aedes aegypti. In addition, analyses of population structure show that Aedes africanus has undergone lineage diversification and expansion while Aedes hansfordi has been impacted by population expansion within Uganda. This congruence in evolutionary history is likely to relate to historical climate‐driven habitat change within Africa during the late Pleistocene and Holocene epoch. We find differences in the population structure of mosquitoes from Tanzania and Uganda compared to Benin and Uganda which could relate to differences in the historical connectivity of forests across the continent. Our findings emphasize the importance of recent climate change in the evolution of African forest biota.
    https://dx.doi.org/10.1002/ece3.3668
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/5178
    Non-IITA Authors ORCID
    Rousseau Djouakahttps://orcid.org/0000-0003-4772-0753
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1002/ece3.3668
    Research Themes
    NUTRITION & HUMAN HEALTH
    IITA Subjects
    Climate Change; Disease Control; Nutrition
    Agrovoc Terms
    Biodiversity; Climate Change; Population Genetics; Africa; Culicidae
    Regions
    Africa; East Africa; West Africa
    Countries
    Benin; Tanzania; Uganda
    Journals
    Ecology and Evolution
    Collections
    • Journal and Journal Articles4835
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