Abstract:
:In the pill bug Armadillidium vulgare (Crustacea, Oniscidea), Wolbachia facilitates its spread through vertical transmission via the eggs by inducing feminization of genetic males. The spread of feminizing Wolbachia within and across populations is therefore expected to influence mitochondrial DNA (mtDNA) genetic structure by hitchhiking. To test this hypothesis, we analysed nuclear and mtDNA genetic structure, and Wolbachia prevalence in 13 populations of the pill bug host. Wolbachia prevalence (ranging from 0% to 100% of sampled females) was highly variable among populations. All three Wolbachia strains previously observed in A. vulgare were present (wVulC, wVulM and wVulP) with wVulC being the most prevalent (nine of 13 populations). The host showed a genetic structure on five microsatellite loci that is compatible with isolation by distance. The strong genetic structure observed on host mtDNA was correlated with Wolbachia prevalence: three mitotypes were in strong linkage disequilibrium with the three strains of Wolbachia. Neutrality tests showed that the mtDNA polymorphism is not neutral, and we thus suggest that this unusual pattern of mtDNA polymorphism found in A. vulgare was due to Wolbachia.
journal_name
J Evol Bioljournal_title
Journal of evolutionary biologyauthors
Verne S,Johnson M,Bouchon D,Grandjean Fdoi
10.1111/j.1420-9101.2011.02413.xsubject
Has Abstractpub_date
2012-02-01 00:00:00pages
264-76issue
2eissn
1010-061Xissn
1420-9101journal_volume
25pub_type
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