文献类型： 外文期刊
作者： Schmidt, Thomas L. 1 ; Elfekih, Samia 2 ; Cao, Li-Jun 3 ; Wei, Shu-Jun 3 ; Al-Fageeh, Mohamed B. 4 ; Nassar, Majed 4 ; Al-Malik, Abdulaziz 4 ; Hoffmann, Ary A. 1 ;
作者机构： 1.Univ Melbourne, Bio21 Inst, Sch Biosci, Parkville, Australia
2.Australian Ctr Dis Preparedness, CSIRO, East Geelong, Australia
3.Beijing Acad Agr & Forestry Sci, Inst Plant & Environm Protect, Beijing, Peoples R China
4.King Abdul Aziz City Sci & Technol, Riyadh, Saudi Arabia
关键词： dispersal barrier; kinship; RADseq; Wolbachia; neighborhood size; Aedes aegypti
期刊名称：AMERICAN NATURALIST （ 影响因子：4.367； 五年影响因子：4.342 ）
ISSN： 0003-0147
年卷期：
页码：
收录情况： SCI
摘要： The movement of individuals through continuous space is typically constrained by dispersal ability and dispersal barriers. A range of approaches have been developed to investigate these. Kindisperse is a new approach that infers recent intergenerational dispersal (sigma) from close kin dyads and appears particularly useful for investigating taxa that are difficult to observe individually. This study, focusing on the mosquito Aedes aegypti, shows how the same close kin data can also be used for barrier detection. We empirically demonstrate this new extension of the method using genome-wide sequence data from 266 Ae. aegypti. First, we use the spatial distribution of full-sib dyads collected within one generation to infer past movements of ovipositing female mosquitoes. These dyads indicated the relative barrier strengths of two roads and performed favorably against alternative genetic methods for detecting barriers. We then use Kindisperse to quantify recent intergenerational dispersal (sigma=81.5-197.1 m generation(-1/2)) from the difference in variance between the sib and the first cousin spatial distributions and, from this, estimate effective population density (rho=833-4,864 km(-2)). Dispersal estimates showed general agreement with those from mark-release-recapture studies. Barriers, sigma, rho, and neighborhood size (331-526) can inform forthcoming releases of dengue-suppressing Wolbachia bacteria into this mosquito population.
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