Shared larval rearing environment, sex, female size and genetic diversity shape Ae. albopictus bacterial microbiota

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Minard , G , Tran , F-H , Tran Van , V , Fournier , C , Potier , P , Roiz , D , Mavingui , P & Valiente Moro , C 2018 , ' Shared larval rearing environment, sex, female size and genetic diversity shape Ae. albopictus bacterial microbiota ' , PLoS One , vol. 13 , no. 4 , 0194521 , pp. e0194521 . https://doi.org/10.1371/journal.pone.0194521

Title: Shared larval rearing environment, sex, female size and genetic diversity shape Ae. albopictus bacterial microbiota
Author: Minard, Guillaume; Tran, Florence-Hélène; Tran Van, Van; Fournier, Corentin; Potier, Patrick; Roiz, David; Mavingui, Patrick; Valiente Moro, Claire
Contributor: University of Helsinki, Life-history Evolution Research Group
Date: 2018-04-11
Language: eng
Number of pages: 16
Belongs to series: PLoS One
ISSN: 1932-6203
URI: http://hdl.handle.net/10138/235302
Abstract: The Asian tiger mosquito Aedes albopictus became of public health concern as it can replicate and transmit viral and filarial pathogens with a strong invasive success over the world. Various strategies have been proposed to reduce mosquito population's vectorial capacity. Among them, symbiotic control of mosquito borne disease offers promising perspectives. Such method is likely to be affected by the dynamics of mosquito-associated symbiotic communities, which might in turn be affected by host genotype and environment. Our previous study suggested a correlation between mosquitoes' origin, genetic diversity and midgut bacterial diversity. To distinguish the impact of those factors, we have been studying the midgut bacterial microbiota of two Ae. albopictus populations from tropical (La Re A union) and temperate (Montpellier) origins under controlled laboratory conditions. the two populations experienced random mating or genetic bottleneck. Microbiota composition did not highlight any variation of the alpha and beta-diversities in bacterial communities related to host's populations. However, sizes of the mosquitoes were negatively correlated with the bacterial a-diversity of females. Variations in mosquito sex were associated with a shift in the composition of bacterial microbiota. The females' mosquitoes also exhibited changes in the microbiota composition according to their size and after experiencing a reduction of their genetic diversity. These results provide a framework to investigate the impact of population dynamics on the symbiotic communities associated with the tiger mosquito.
Subject: 1181 Ecology, evolutionary biology
AEDES-ALBOPICTUS
PLASMODIUM INFECTION
DIPTERA-CULICIDAE
WING LENGTH
MOSQUITOS
AEGYPTI
WOLBACHIA
HOST
TRANSMISSION
SYMBIONT
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